Policy & Terms of use

Back to Library
Show Menu
Hide Menu

|

Boatinfo requires FlashPlayer 9 or newer to display this document!

Get Adobe Flash player



HONDA BF75/BF IOO CONTENTS I. SPfCIFICATIONS . . . . • . • . •••. . . . . . •.• . . . . IV. OISASSEMBLV AND SERVICE 3 •............ •30 1. SPECIFICATIONS .................... 3 1. DISASSEMBLY CHART ................ ·30 4 2. DIMENSIONAL DR AWINGS ••••. . •. . •.• 2. RECOILSTARTER ..... 31 .............. II. SERVICE INFORMATION 5 3. CARBURETOR/FUEL PUMP ...........• '34 . . ....... .. . . . • • 1. GENERAL SAFETY •..•.....•.•.•..... 5 4. ELECTRICAL ...... .................. 38 2. SERVICE RULES ..................... 6 5. ENGINE/LOWER UNIT ·REMO VAL • . . . 53 3. SERIAL NUMBER LOCATION .......... 6 6. CY LINDER HEAD REMOVAL . . . . . . . . . 57 4. MAINTENANCE STANDARDS • • • . • . . . . . 7 1. CAM SHAFT/VALVE/OIL PUMP ...... . 58 5. TORQUE VALUES 8 8. CRANKSHAFT/PISTON 66 •.. . • . . . . • . . • . . . • • . ••••• • •• • • . . . . 6. SPECIAL TOOLS . . . •.. . • •... . . . • . . 9 9. HANDLEBAR/SHIFTLEVER • • . . . . . . • • 72 7. WIRING DIAGRAM ................... 11 10. SWIVEL CASE/STERN B RACKET .. 76 8. TUBING LAYOUT .................... 16 11. PROPE LLER/GE AR CASE ...... .. .. .. 79 9. TROUBLESHOOTING .................17 12. OPTIONAL PARTS . • • •.•.. . . . 87 10. MAINTENANCE SCHEDULE ••.••...... 20 V. CONSTRUCTION AND FUNCTION . . 93 11. RECOMMENDED SERVICE MATERIALS • 21 1. LUBRICATION SYSTEM .............. 93 12. ALTERNATE PROPELLERS .. .......... 22 2. COOLING SYSTEM 94 .. .. .. • .. . • . .. .. .. 13. LUBRICATION CHART ................ 23 3. FUEL SYSTEM .... .. ................ : 95 Ill. MAINTENANCE 24 4. POWER TRANSMITTING SYSTEM . . . . • . 97 ................. ........ . .. . • .. .. • .. • .. 1. ENGINE OIL CHANGE ................ 24 5. ELECTRICAL SYSTEM 98 z. GEAR 01L CHA NGE .... ....... ....... 24 6. TILT AND REVERSE LOCK MECHANISM ...... . ............. 3. SPARK PLUG CLEANING/ 102 ADJUSTMENT ....................... 25 VI. 104 SUPPLEMENT ............................................ 4. IGNITION TIMING ADJUSTMENT •••••.. 25 VII. SUPPLEMENT ...... .. ........................ ..... .. .... .. 113 5. VALVE CLEARANCE ADJUSTMENT 26 .... 6. CARBURETOR ADJUSTMENT ••••.. . ..• 27 7. SHIFT ROO ADJUSTMENT ............. 27 8. THROTTLE CABLE ADJUSTMENT 28 .•..•• 9. THROTTLE GRIP FRICTION ADJUSTMENT ... ....... ............. 28 10. STEERING HANDLEBAR FRICTION ADJUSTMENT . . . .................... 28 11. CYLINDER COMPRESSION CHECK ...... 29 12. SPARK TEST ........................ 29 I. SPECIFICATIONS HONDA. BF75/BFIOO 1. SPECIFICATIONS 3 515 rnm l20.3 )n) 0¥.11ll¥nd h 315"""' 112.A11'1) O..•IIM..t 1,0\0 mM 131.1 '") Otv ...,..ith, 34 "'' tn.o 11tl a.r.es,......-.n ...... oirJ l5 r.:e tn.a ,,-.,...,. """"'' •22 _. '"" "-t SF 75 lo.,, 1.160 mm (45.7 in I 35 tc.a en .2 tb 1 )$ kt (79.4 lb} 572-122.5iAJ 1,010tnm ()t.t inl ,.. "' (75.0 lbt ..--tl71.21lll 42'2-lilA 5ft) 8.F 100 l.OftO • • • • • 0 ••0. 1,1&0mm (45.7 fnl 3$kg (77.21b) llltt (JIA Mtt 57'2 """ 121.5""I •••••••• •••••••••••••••••••••••••••••••••••••••••••• 0 •• Tf.,..l'!'l ....... T1h""1 tiiwrn•.,antl• EntiN r,., TOt14 p!"Oft dhJ!t•cement lkwl. 1\ICitill f\141f CIMMifi'IP:Iion twrioCooti"t ,.,,._ """'..". "" .... ltftltio.t timint &p.,lt pl\lf Ct11Muttor Ad'wtn(Jt IYIM LubttcttiCNt '¥'"'"" I.NbrtGW.I c.-ity IUnlllf ,.,.Wm .. .... Fwt ,_. up.City ,.,.•• ,_.1'1'1,IIIIWI.It1 '"""" a.o-r Unit ()wte.l\ 0M1 t.-1k> 0.., c• oil ..ity ,.,.,.,.., Wc.ag. ..-a' -.,,. -1..1 ,,,,.. -1r • A: 46•, l,: 415• 2 cyhndH,In-llne, 4 tlr.e. wne,-eoolld, OHC 197 c;-c (12.0 cwlnl 66 • •o mm t2.20 x t.S7 '"l U:t 270 .,,.,.. (0..10 ...,.., .... •··· I» •••• h:p)/6.700 '"'" 1:X. kt'Cift ttAOf1<1bl F01C'Id wattf cucvlebon by i""*r.t" '"''"" •·ith tl\eJifloOCUit E,... ftWMbef 1000004-11999Qg; f'lywi'IMI ..0 i"''!iM "'Ia.! ""'"'bet 12'00001 ll'ld $.ulnt: COl •&'"-3s• a.r.o.c. DA-SHS tNOKIISuncbrdl Horizonul typt, bl.lnetfly ""'....., Ce.ttrifU,..q.iolk ld'flftCI '"-'Niwbf'ICittlon by troehoid pumpO.lt to.• US_._ 0.70 1r...p qtj tr.AE IDW-40 S.Ne C....Uia!Uon S1 orSFJ..IC!Di$.. a..-...... of pt.. $cvol R.,aw WtOtMM fi!IOII• 13t C.SA US fill, 2.1 lm_.t.-1 Di.lpf'lfllf" type 0.23t (OAt US pt) No.. of M.-..oi.t.l( Pltd'l 3-2.0 IMI x 220 mm (3-. 9·112 •8·3/4 in) 2. DIMENSIONAL DRAWINGS H: HEIGHT .. e 4 HONDA 8F75/BF IOO -f r-s co.1sr·) w.. II. SERVICE INFORMATION HONDA BF75/BF IOO 1. GENERAL SAFETY B. TUBING LAYOUT 2. SERVICE RULES 9. TROUBLESHOOTING 3. SERIAL NUMBER LOCATION 10. MAINTENANCE SCHEDULE 4. MAINTENANCE STANDARD 11. RECOMMENDED SERVICE MATERIALS 5. TORQUE VALUES 12. ALTERNATE PROPELLERS 6. SPECIAL TOOLS 13. lUBRICATION CHART 7. WIRING DIAGRAM 1. GENERAL SAFETY 14.JJ!§jlj6 Indicates I ttrong possibility of severe penonel injury Or loss of life if instructions are not followed. CAUTION: Indicates-a posiibility ofpersonal injury or equipment dama;t if inttruetions are not followed. I'J.fi-!illiii! If the motor must be runningto do some work. make sure the aru is well ventilated. Never run the engine in 1 closed area. The txhautt eonulns pols.or.ous carbon n'IOf'loxide 901'· [email protected] Gasoline i$ extremely flammable atld il explosive under certain conditions. Do not smoke or allow flames or sparlu In your working ..rea: CAUTION: KM1) away from rotating 01 hot p;uU and high tension wires when the engine is Nn with the cover off. CAUTION: Make sure the water level h above the anti•cavitation plate when te:sting the unit in a tank. Otherwise the pump will be dtstroyed and the engine will owerheat. HONDA BF75/BFIOO 2. SERVICE RULES 1. Use genuiJ'e Honda or H.ollda·recommended parts and lubricants or their equiulentJ. Parts that do not meet Honda's design specification'S may damawe the unit. 2-Use the SPt..al toohdestgned for the product. 3. lnuall new taskets, O·rl..:. etc. when rnnembling. 4. When torquing bolts or nuts. begin with lar1J8r-diamater or inner bolt first nd tighten to the specified torqut di.tonally, unless a particular sequence is specified. 5. Clean parts in cleani"' solvent upon dis$ssembly. Lubricate any sliding surfaces before reassembly. 6. After reasaembly, check all paru for proper Installation and operation. 1. Follow theinstructions represented by these symbols when they are used: Applygrease. ApPly o11. 3. SERIAL NUMBER LOCATION Th• •rl•l nu"'b•r Is sumped on the n•me pl•t• •tt•c:httd to th•&w1v•l UN. Alw•ys tp«ify lhil r-.umb., W'htn lftQ.o.lrif\9 ot orct.rint .,_m it'l o rct.r to get COff.Ct p.trtsfor Ita un.it beinQ,.,....;*, HONDA BF75/BFIOO 4. MAINTENANCE STANDARDS 16.0 nun (0,63 inl Cylinder eompnsUon BF76 BF100 Carburetor Mol!R)et Pik»tscrew ol)tnlnt Flo•t height Tl't•mo5t•t o.,.n, Vat't4 hft Valv. stem 0.0. IN EK Valve 91.1ida I.D. Valve stet width Velve $4)1il'lf free length Rocker iWm Rocker lilrm 1.0. RO<:ker arm shaft0.0. C.amshlft Caom M;oht IN BF76 BF100EX 9F75 OFIOO 0.0. t11t oil P\lmpl 10.0 ka/cm• (142 lbjlnl)f$00 rpm 10.6 kQ/cml (1$1 lb/in:)/600 rpm #'88 2·1/4 turns U·J/4 tu!"M) 10.0 mm (0.39 in) 60"'-70''C (1..-158"F) 170"-BO''C t1 58"'-176" FJ) 5.5 rnm (0.22 inI 5.5 mm (0.22inJ 5,5 mm (0.22 lnJ 0.7 mm 10.03 in) 28.9 mm (1.138 in) 13.0 mm (0,61 in) 13.0 mm 10.51 rn) 26.5mm (1.04in) 123..0 mm (0.91 in))25.2 1nm i0.99 II\) (25.0 mm (0.98 lnU 23.2 mm i0.91 in) 12.3.0 mm (0.91 in)I 26.2 mm (0.99 in) (25.0mm (0.98inll 6.08 mm (0.2 inl 4.75 mm (0.187 in) 5.54 mm (0.218 in) 2.0 n'lrt'l (0,079 in) 21.4 mm U.079 in) 13.06 mm 10.514 inJ 12.92 mm 10 .509inJ 26.25mm t1.033 'nt l22,75 "'"' (0,896 inlJ 241.1)5 mm 10.982 inJ rz4.75 mm (0.9'141nll 22.95mm t0.9041nl l22.75 mml0.8 6inll 24.95 triM 10.982 in) 124.75 '""' (0.974mll Oil pump Body 1.0. lnnltf rotor•IO•outar rotor CIII!I1010C$ Outer rotor·to-bodv d•..noe PirtOft pin hole 1.0. Pinon pin 0.0. Phtor. rinowkflh Top Second ();I Pi.ston rinu side d011r&nc:e Top Second Oil Rlng end 9iP Top $gc;ond Oil Cylinckr SIMYe 1.0. •od BigClf1d radi..l clur..n.e... Bio end u .al cla•anee 23.0 mm (0.91 ir'l) 0.1!5 mm (0.006 lnl 14.0 mm (O.!S!Sinl 1 .0 mm (0.55 inl 1.6 mm (0.06 il'l) 1.5 mm 10.06 in) 2.5 mm i0.10 in) 0.025 mm (0,001 in I 0.025 mm (0.001 in I 0.015 mm 10.0006 inl 0.15 mm (0,006 i11) 0.16 n1m (0.006 in) 0.15 mm (0.006 tn) 5&.0 mm (2.2 in) 0,()4 mm ( 0.002 inl 0.6 mm 10.02 in) 15.9·16 mm (0.627 in) 23.23 mm 10.915 inJ0.20 mm (0.008 in) 14.04$ mm 10.553 il'll 13.954 mm 10.549inI 1.36 mm (0.064 in) 1.31 mm (0.054 in! 2.37 mm 10.093 inl 0.10 mm 10.0041nl 0.10mm 10.004 tnt 0.10 mm ..0.004 in) 1.0 mm (0,039 in) 1.0 mm (0.039 In) 1JJ mm 10.039 lnt 5G,165 mm 12.211 in) 14.070 mm .0.654int 0.()83 mm (0.003on) 1.3 mm i0.051 in) J : Eng n$ $11rio!ll .Wmbr..rtan90 1000004-1199999 5. TORQUE VALUES Timint p..lleoy C-p,.INy Cyfind• houd Cf.ni!C.IN Co11ntctinerod E1119N mounting P1-euur1 switch Stwlne Nndlebelr SttnO.d tOf"qvts 8 2.t mm nut 6 rnrn bott 8 mm bott 8 mmbolt G mtl'l bol1. 6 mm "*..''boh 6 mm boft H..l'ldlob• pfwot toerew S rnm bOlt 1nd nut 8 mm bolt 1nd nut HONDA BF75/BFIOO 2.0-2.6 6-18.11 o.a-1.21&.e-e.n 2.0-2.6 114.6-18.1) 2.0-2.4 (14.5-17.41 0.9-1,1, (6.5-8.71 0.9-1.1 (6.6-8.01 0.8-1.2 15.8-8.7) 6.'1-1.0 US.1-7,:l) 2.0-2.8 (14.6-20.2. 0.4-0.7 (2.9-S.ll 0.8-1.2 (5.8-8.71 2.0-2.8 (14.6-20.2. 6 SPECIAL TOOLS Tool No, 1 0'7708 00304¢0 2 07935-905000:2 3 07925-8930000 P lle-v hold r Or [email protected]!CI&!I'/ lh•h:'l b.lnd ..I""'P WICI'IC:h 4 07936-93!)0()01 Be.. rcmow:r :;et • 07742-0010100 V&!ve Quie-9 oe« mm Pin drivtr e 0794-4-9350200 4 m"' Piol dl9vet 9 07944-9350300 6 mm Pin d!W$t 10 07945-9350001 &8o.IOIHO..t 11 07946-9350l01 A ..llehmt;tnt drivor A 12 079JI6-9350200 Attachment { 6203 bo11ring (diJill..) ,. 17 mm w..1to1 101:<1 (diila..ilo!'mblvl ,.50.. iasllcmblyl ,. 6203 be-aring Iassembly) 79 17 tnn'l w-..t..t $AAI (A&Mmhty) ,.cS mm W..ICI i:i'NI (u.;sc:mbfV) 83 8302 b..ring rassemtltyl "" • I-I ..... otPlo:.wte£-,;td!f'liiOCl OCO..•w•....,ll PMocw>t Col .."'·"'s;,..,..;s.,." 12 Wire CoSo. B"elc Blue ...... ••• ChC HONDA BF75/BFIOO 0 ChlrgiAg CoilESw £nvine Switch &C bc:ittr Coil ._ --Col ll ......... u..., NS NIWat Switch PilllOCI OCCMput Plug PIC PI.IIHrCoil SP S..rk. Plug Slli..on R.ctiftWOPSw Oil "'""'rt S..wtth 13 HONDA BF75/BF IOO r-------------------------,' Engine serial number 1300001 1nd 1uboequont 1 0 81 0 81 Blue Boeen the brMfil• pl•t• h;c:llng •etew ••ld mcwe l.._ contec;.t ktr pl..t• to •cta.tv• corttc:l timing. Retighten tht toclllng urew. 14) Aotlte tht ftywhe.t one full tum, and ch!Hlll Ignition timinv for the othw gytltw,.tt, AM4,iw&t tht co.'>t6C1 btHI(et pointe. li nec:M.ery, H tt\e I..AIIIon timing wll b• as ClOfTtet ,.. po1111Ne for botfl c::yt. ..... 25 HONDA. BF75/BFIOO HONDA BF75/BFIOO COl TYPE [IITimi ng Bait NOTE: A COl sys..m doa not require adjustment, except when the COl unit is replacatd Uld/O'f the-pulser coil i& removed. The timin9 nuneiM vMh•n!Jtd t$101'19 as the ..91 pMts ,.,...tin tu"'dDturbod. (1)To WI dmlnq.. .an.. tho flywhool "T .. rn...rtc 110nd tho.:. ,,u.,c:J• INHk 0<1 mec •m p'\Hit"(. $flown, ttum inmu tho timing bett. (2) Ro1&te the flywhtotl ont c:omp$91.. hnn and alitn the ''f'' m.rk with the olj,gninv m...rk. LOOMn the two .crewt and mow 'he pulser coil so th e m•ks on the ClCiil end advancer rotor are if! lint. 5. VALVE CLEARANCE ADJUSTMENT (11 Rot•te the ftywhetl to . Tithtening torque: 60-100 ktoem t4.3-7.2 ft-lb) NOTE: • Pwform this. OPGJation with tho eniJiino eold and th• 1.-ylindert at r.o.c. o<. ttwl eompr*Uolan $1folr•. Who"' tho eylindor isot T.o.c. on ttlo com..rll$0 i0ft¥troko, "'' irolilk.O e.nd••h-.e;t V..V'tS should 1M f1.1lly clos.d. (4) To tdjun thoe f•fN!ini(l9 cylind•, rotat. th1 flywheel 360° further. IAI "T"MARK 181 FEELER GAUGE CCI ADJUSTI (OJ LOCK NUT G SCREW 6. CARBURETOR ADJUSTMENT -- IU St.M: lhe .. end tv1t .. idh unci • I'ICir'fl'lel Ol*"'lllftt t.....,_,..... (2) Tum the uwoute tt. Mrew in Of out u nea:uwy YRII the __... _ .. _. Pilot ScNW H tl'le pilot •ct•w "'.. M+Cf.t: .tjt..Jtment,.11) Tum the plot KNW In o, oot M..tll the hightt$1 .. rpm is filched. 12) Re•djl.IIIIO tht ..,.ctfiH Idle spc.d using the dwoulil S'tOP acr&w. 7. SHIFT ROD ADJUSTMENT Whl'l the 11'1Ht rod tnd th1tt ttm 1n the furwntd position, and the linkage pin remov•d. t\ltn the ahtft rod joint to "1iyn t1111 linkage piR h olea. ln•u•ll IN !'lin. NOTE: Th• holet will' vtuMiv lllllgn if tho shift rod joint i11 turned ell thl Wlf in and ..... UI'IOIIWitlbll 10th" tht ll'lf'OUII Hn'l COI'ItiCI vrtith tl'le tMh erm by hunine thl lodl. nub. (3) Titht..,. the lock nut• MCUr.tv.(4) C'oM the tl'lroUit •ip lunv end •djust the ttop Kftrw 10 that Ute or throult It fully doHd. (5) Afl• edjuti.MIIft, thilt the engine intO filCh POIItlon tnd Mlk& sur• thllt It .tttlnt th.t followlfl9 '"'"'1"'"'" JP•Idt. Mll•l'""m tf'4IM tPHd: EncJ)M S.rlel Number 1000004 end subse.t: F IF15: 5.200 r·pm BF100: 5,700 tPft'l N 5.000 • 100 riM!'I A 1200 t ZOOf1Hft 9. THROTTLE GRIP FRICTION ADJUSTMENT Entlnt S.rl•l NumbiM' 1000004-1299999: (1)AdjUfltht hiC'tton by turning the throt..le gro,p lind u.... (A) Tvmto AIGHT! To tiehton (8) Turn to LEFT : T•tooMfl Entfne S.r1411 Number 1300001 ..nd subMtqUIIlll Ill Adji.Ht tht lr.tlol'l by turn•no the throctle grip end ad)utttr. CAt Turn to RIGHT:To tighten{8) Turn to LEFT :To kJoMn 10. STEERING HANDLEBAR FRICTION ADJUSTMENT (1. Adiutt lh• hklllon by turniniJ d1• .djuitln{t bolt Of' 1h• •wiv•l c••· tA• TurntoAIOHT:Totight..,(B) Turn to LE.FT :To too--. 28 HONDA. BF75/BFIOO 11. CYLINDER COMPRESSION CHECK 111 Remove both llpa rk plugs and connec1 a compression te"tr to 1ho evl indor by sc:rewinO the eMptor into th•10p..k plu g hole. 121 wrm tM tflronle val"'e wlc:h opttn. atr.d tho ·..ine stop button d..,ret$11d, or a wir' IHUehtd to ..ound tM OOil prfl'l'll'lol"f totrmin.el. c:rank tnt tnglnl several times:. Note tht m.ucimum rt&ding on th.. eotnptM&ion QauQit. CAUTtON: The ignition ooil mey be dam...ged by ctanklng tho ongine with the span: plu9' rtmoved, un'Hs the engine $10p buttU•.. is dltP'eued Of the coil prinvry t•minal is otherwiu: orounded. 13iMnsunt t.. con)l)rmlon of both cylinders. 12. SPARK TEST • When 11)atk..htck'ing, k,"p your hands away from hiih tom-ion el•e-tncalperu. • MoMI.e s.wo that no fuel has b ..n tpi lt on the en..ne ..l'ld th&t the l)luQ ..not wet with fu... 11) Removt the spark P'uo, attacf\ tht I)IUQ cal) and DfOund the circuitby touching the ..ativt tstd•) efectrodt to th• c:vlind•r blocok •• s.hown. 12)Pull the recoil -n•,tcw •md chec;k tV 64:1• if spllrk' jvmf) ac:rou th• tfHttOdes, 29 HONDA BF75/BF IOO JY. DJSASSEMBLY AND SERVICE HONDA BF75/BFIOO 1. DISASSEMBLY CHART 2. RECOIL STARTER 3. CARBURETOR/FUEL PUMP 4. ELECTRICAL 5. ENGINE/LOWER UNIT REMOVAL 6. CYLINDER HEAD REMOVAL !SINGLE OPERATION) 1. CAM SHAFTNALVE/OIL PUMP 8. CRANKSHAFT/PISTON9. HANDLEBAR/SHIFT LEVER 10. SWIVEL CASE/STERN BRACKET 11. PROPELLER/GEAR CASE 12. OPTIONAL PARTS 1. DISASSEMBLY CHART 30 @J EXCITER PRIMARY andCHARGING COIL COVER (20JLOWER MOUNTHOLDER .. GEAR CAS( SHAFT HONDA. BF75/BFIOO 2. RECOIL STARTER •ENGINE COVER X 1:1.. ( 3) FLYWHEEl LOCK LEVER ADJUSTMENT: Loott.n thet bott and ..Just loek hCXIk he'atn to hold the engint eov•r tj,ghtely eJoMd, When r.tight· ening the bolt, be suer the lock wMhet ter,.tions tne-e• the lock hook wtrationt. .. LOCK HOOK (!] LOCKWASHER • FRICTION PLATE [!] RECOIL STARTER PULLEY • RETURN SPRING ..STARTER CASE .. 32 • Hook U.. ouur end to ttw ebutment on the <:eM •.. INtetl by winding dock· wioo • Slip me inn., end onto .,..oillldion on ftwt biiiCk ofthe pulley. lzJSTARTER ROPE ASSEMBLY: (hack for h&yin.g aM HONDA BF75/BFIOO lij STARTER RATCHET ASSEMBLY: Ch.ck for wNr Of damlgt •nd note iMtalhttion dOre tio". .-(iie..SET SPRING ASSEMBLY: Pltct one end in lhcl hole iu th• p11ll8'1 end the ottler in tN ..ll in thoe frletlon plate ;a shown. ROPE GUIDE ;TIJ PULLEY DISASSEMBLY: To l)f'went the spring frocn poppint out. ln.., • SCf'ewdtivtr throulf' the eentw eutout in the pullev •od d.,... tht_,,.ng. HONDA BF75/BF IOO • STARTER ROPE ASSEMBLY 1) Route Ol"'eef\f of tht s.u..t"' •oD• 121 thr01.1o1! lh.. hl)lt In •hill 2) Yllind th11 I.. ·,UOUr'lli lh• pulley. Sol thet p.tlloy 11) 11'\e COliM ttoNer l"o.dl$y (1) ond de • kno.. In ..ht tt-.cl. $«:'wro th.. r·upt !4L With tab t3i Oll lhi i)UIIe'l. 3) lnnaJl d. sp•i• (!5J. uu¢1••' 161 •nd fllct!o."' plate (71, it. Qrdtf. Ro&ate tlWt plttll' 1/3 turn dD<:kWiSt and $Et..ure with tN 6 """' bel" Titftton SoDcuroly. 6) Attoeh • .:pr;.., ...tl, to tho ropo e.\d 1..-.d ••«...v•-.: tl-... forte 'llilh Yllti(..11 tile tope ts pullea out ll 11 tl!)tS no: lt.ll withm 1.3-2.3 6tg (2.0-5.2 lb$), tum the puler i .. ot o .. r.,. ,-,. quirtd, •I Mil• tloldh"9 tht topt tfld in t"'-eut·o\lt Cl) Itt th Jl'-lllty, IOT.Citetht pulltty 3 tO 4 1UIM in ttlt dlt8C'tlort Of the StrOW· 61 Slip t.hc rope vultle (9). S$11 p!atw (10) cmd grtp {1 1), ovt• tltt rope and t.MJ tt knot in 11\e end of tk11 rot.-._ S:teu•• the -optguid• whh the r:-rlng (12). Alttt assernblifti., Qltck thlCJ&)et,.tiGn (If tNttta1ttr •atd\.u •1\d t•luno of tl!. top•. HONDA BF75/BF IOO 3. CARBURETORJFUEL PUMP • CARBURETOR [DAIR GUIDE (Model with engine serial numbers 1300001 and subsequent shown) THROTTLE ROD CARBURETOR ASSEMBLY: • LINKAGE ..CHOKE LEVER LEVER Befo,. ..M:Urint the ttuottl• W..'s PQfition with the stop tertw, make .,,. t.htl the arm is "" al'ld th•t th• th#ottl• ..,...,.. II!] SCREW j/ • FLOAT/MAIN JET CAUTtON: Always dratn the c..·.......... before eSMmbly, 0 FLOA. T VALVE ASSEMBLY : • ..the Yllve f01¥rear or scores, and the nMdle sprin; cond ition. • Hook the Reel wile OVIW" the floet ..tm II "'I to bc:ili­t•r. iMhllation. [!]DRAIN SCREW -------- 35 W.-t! ell rei.idve frotn Uti tw14y 11nd blqw ovt ell pu· U!Jotls or tireuiu with com· pre»«. aw. HONDABF75/BF IOO • Hold the ..arbt.uetor as shown with the f&o .. v-alve just touching the ft0<1t tang ..d measure the dDtance b.tweon the top of the fto..t •nd cerbu,etor body . SPECIFIED FLOAT HEIGHT: 9.85-10.16 mm 10.388-0.400 in.J • Bond the tllb to &d)vtt i..o..,..::t float height. Sc:e P119t! 27 !l.lf cu•lluflltur &lljusvnem. OJI\01-00lOCIOtl fLOAT LEVEI,.CAU$$ ontv• 2 3mm ..0.08-0.12 In) J.. ---- 36 HONDA BF75/BF IOO EARLY MODEL FUEL PUMP Engine serial numbers: BF75 : 1000004-1102880 BF100: 1000004-1101260 NOTE: II installing • l•t• model r• P'ttoeem••'lt fu•l pump, diacetd thoe PUfW\P co11w •nd •dd two 1...-tvbe cliP$ M sllown in the low., illustretion. @] FUEL PUMP [2jPUMP COVER @) FUEL PUMP HONDA BF75/BFIOO • FUEL PUMP Engine-;.1 numben: Engine swjal numbers: BF76 : 1000..1102880 BF76 : 1102881 and suboequent BF100: 1000004-1101260 BF100: 1101261 and suboequent • DIAPHRAGM ASSEMBLY : Checktht wtve 'Ot utt:kl ltlcf wear. ill SPRING -..DIAPHRAGM L6 1 DIAPHRAGM otSASSfMBl.Y: Pu1h d!4 dW!ph.r.trn dO¥rftW¥d 11'14 tMft rotate IH'Itol t"-foot is ..al'-1 whl'l 1M tJOOW in tiM.. rod. ASS:EMILYi d C.tfvtly cMdl. ttw ilpt'l,..,. fOt ho&M, tun Wid Mt-'onrtion. R. pi:K.t if '*'-'"V. CAUTtOH: ,.,. .. IMkl pest tl'lt d..phntm An d..utt tht oK •nd t'flntuelly caust eneiMdtm"'' SPRING 4. ELECTRICAl a. OISASSEMBL Y/ SSEMBL Y o FLYWHEEL Sflt l>fQt 12 fO• wi•e con· nectiOfl$, TIMING BELT DICAI&lMeLY, ftlmOIIt tl'•• btlt frOn'l: tht -" pulltJV witt! your ..,,. Do not "" • ICfew· drlv.t. • CMdl tOt' WNr orCf.ekf.• Allen U\4 ••r• mNk on tho f'IVWhMI tAd tl't• .,...ftCh m•k '"tM,..-My to rhtlir•tfw elitnint mwk•· • Ahw.,.... arwtttl tho Mh ., tNt "'HCJIIDA... c.rt be ..CAM PULLEY P.45 Do Mt fOf"tel to iftltah andbe_.. h k 1ft ..... 38 ..STARTER CASE HONDA. BF75/BF IOO III FLYWHEEL or com.,.....c:ia.lly •V'IIilebko blind ftnpWI'.. 07t36-8060002 Fl.VWHEELPU\.LER ASSEMBLY: a.. n the c:r•nklha.ft ..... bM'or•6r1$Uillnlon. ..._,.., -.. fftlb ..,,.. thlitdwcoil 4olt not ltlttt,.,, witt. thl .. IGNITION COIL ..TIMING ULLEY • INDICATOR LAMP/ENGINE SWITCH 39 HONDA BF75/BFIOO Engine serial number 1300001 and subsequent / -1 IIU'Ull with the wir.cfow upwtrd. for WJSiM ..UI numbft' 1800001 •nd tt.lbMCIIMit. 40 HONDA BF75/BF IOO [IIENGINE SWITCH WIRE Apply • non•hlrdet"!ing gnket tee4tr on the ttHefds. HONDA BF75/BF IOO 5}JALIGNMENT MARK ASSEMBLY: z, Sacuro the shift .,m ort the !!haft with tl'lt 6 )( 25 mm or th• 8 lC 28 mm bolt and w-.M1, th•n irw1.1ll the detorTC rO-ll or. 3. With the tr-.m•on in neutnol (the det..nt roller in the midcUe notch on the shift erml slide the devic pin tt.rough tM shift um lindttliftrod joint. hwttn ttlt cotter pin, NOTE: Tht pin thould to in without bindil'lf. If tdJ.<.•t.,ent h t'IOCl'l..,.,., turn the lhift rod joint • n.q\llnld: count•r-eiOdt.w·he to r•iM it, dodtwi .. to lo-it. 5, Put tht lhift l•wr in REVERSE sotht lll.1h ljlrO ENGINE HONDA BF75/BF IOO • D.C. OUTPUT CIRCUIT 6X28... (l) J2j FUSE CAPACITY: 6A I III FUSE HOLDER ASSEMBLY: I1JOIL CASE OJ CHARGING COIL ASSEMBLY: Be su,. th.l1 the eoil doet not lntl'f· ,.,, witt. tM tlywhMI.. •nd thlt th• wirftdOn't in.-t... wl1h ttw tinlint pullf'V or belL [IIRECTI FIER D.C. OUTPUT CONNECTOR ASSEMBLY: • T•k• nott of polariti• when con• Netlnt ...,;,.. l•ck 10 tht ph.aa. • Aft• conl'l-.etlnt l..ds,. llidt tht rubber co..r tN plug to pr• 11ent wt&.or ,..,..._ 6 HIGH TENSION LEADL'::-. ASSEMBLY: a. tur• t.. lt'$UitlQ" are not fr.y.cl or brokMl. Engine serial number 12000001 and 43 HONDA BF75/BF IOO APJMy ll SII'WIII ..mount of tdh••v• toth•thrMCI$. TORQUE SPECIFICATION: 90kt-tm (6 ft-tbl • STARTER CASE [!i :ljSTARTER CASE TIMING PULLEY ln.Utll tht pulley with tht mtrtl "JIL YWHEEL .. ftdf)g IT: ASSEM.BLY : Do not forpt toiftstatl a.nd 0. ..,..., " .. .. pl.tc.. mCRANKSHAFT 44 $)(2'"'' (3) HONDA. BF75/BF IOO [21BREATHER CHAMBER / 8 x 10 mm DOWEL PINS (21 ASSHtBlY :8e !line to infta'll ftot phuin the ..;:' II ...... ,II/· - [4]LOCK WASHER • lm:tall tiM ""'"'* -thattM .,_ lMf fl" IMOjl"oo-.. in tNP'11tty II••· • e.nd tht ........ , th.. 2• mm Nit tt two pqc" 1111.. th• ".'' n., b4ten fivtltentd. ASS£M8LY :lra:a.atl tbt Itt,_.. to tNt ,.,. .. IUt'fiCft .,.. "' sitiolltd ,w.., from Meh HONDA BF75/BFI OO • CONTA T BREAKER (E..ine serial numbers 1000004-1199999) @I DISASSEMBLY : Oo not Nnuntr. i.!jsPARK ADVANCER P.40 ..CONDENSER liCYLINDER HEAD ens : IOOOOOC.-11 02880 sF1 oo: 1 oooooc. 11 o 1260 ASSEMBLY : ll ...o.lootCI with the mill')'rnoclol IU.: pul'l'li) (pag.. 3S ). •n!l:bll ttl• futl Pl,rlp, th(ln install tl\t fu.. puwp. th@'n in· lltl!U lhtl pufnpcovel ..ogo;hcu Wllh tlo• (lylil'll'!l)l CDVf!<', 45 w Alifn the: ktywty in the COYIwn Gr•n sa,.. Yellow Orlln.. WhiU - Engine serial number 1300001 -1300700: ---.belC-1 Probe Bro n Gu•n .,..., Veuow o,.nga Blut ite ----- -- -....._ - - Engine serial number 1300701/1300703 IBF75/BF100) and subsequent: Prob4 1-) Probe 8rown GrMn 81&ock YtUow 0r•ng• .... 8110kiW!Ii1e Wnltt -----l o.s - -· ----- ------------- 52 ' HONDA BF75/BF IOO 5. ENGINE/LOWER UNIT REMOVAL a. REMOVAL • ENGIN ISee also P. 561 (31 Aemovt brMttltr t\lbt lSI, e.tbu,.tor o.,.,.,low h11M i8) •nd ..ne wtttr tube (7J hom tube oonneew Cll. (5) A.move rKti'ti•r 1131 bv vnte,...i.na tht 8 mm boh. A.mo•t the.. !114ft llftd 5 M.lfl dforilf; p'" (14). Dltconntet fu.,. t\lb" (4• from pump Ill. (41 Loo.tn •oclll tcr.,It) and temoYt thronlt link 1101. AemOM d'IMI.t Unk (1 11 kom chokt lcnoD (121. Ill Oloieonn.et wire ._, USI, C1GJ and U71 comlne from the r.(tlf'-'• tne'M ...,.tdl •nd oil .l•r '-m_p .-. their 12'1If ...,.;,...... with the ..,..., model fuel ...,,... Jtfl'loOft tM &KlmQ ...,., (BJ:75 wi..l num.Mr\ 1000004-1\02tl0and 8,100 Mri•l 1'14,11nbtr• 10000DC-1101260l. HONDA BF75/BF IOO II ftto--.J.C.. ..,.., a ,... hftl 1211• ....,. llllplo'•tt .,_. -1121 fran ....·-CZ31. (1 1 t Atn.O¥• •ltht 6mm bolts ..26) &nd I &Itt en. pow ... h-..d out ol oil oe .. 12?). CDCONCEALED BOLT (II AtoMOft ..w.t lf'IOVtlt bousiat (2'G) by -..ct.wi_.. twO I MMMfb 1191. NOTE: • Oflot boh kc.*' •• lAdiut•d in the iltuwnlo". • C.O.tbotH whh •-for eor•l.tUr ooil (161. 57 HONDA BF75/BF IOO (2J Rtme..,, tour 6 mm bOiu 13J to ,.mo..,. eylindCII' l'tt.ai oovtr ( AlliN w. CII•MP' tsl 10 ,...... 01• biM. (4) A:tmOYI cawr (12J ud & mm t»i1 (13) to Nteu. e.fl pul1.-y 114) from th• ..hllt tiiCf tlmi"t beft (151. liSt .ft.w ,.lftOVint •'• 8 mm bottt t17), .• cvlil"'ddw I'INCI Ittl with th• lf'lhlcl rY>....t1fokl, •x.tl..wt pipe,, dl pump •nod ,.,..,, tnifl in.ul&.d. CAUT10N: Wt!on r-rabllt\fo •ppty • ..•t of .,. .... on tho ll)ChJUil pipe end lnd iflf&n \'t ttuOIICJl the elti'UNQ POt Mit 8e ..-.ft.tl ftOt to dWedot !ht ..... ..,...: .... HONDA BF75/BF IOO 7. CAMSHAFT/VALVE/OIL PUMP a. OISASSEMBLY/ASSEMBLY o CAMSHAFT/ROCKER ARM f2J ARM COLLAR B .. J\SSEMBLy, ARM COLLAR A Loo..n tJifl 1ot:k. nuu and 1djunin9 s.creo,vs to unloed tt\4 valo;e 'Prin!p ..for• removine the elM and rocker etmstl.fts. ASSEMBLY: Aft_er l)to..b"ng, adf!.J$t vafvc eh.ilrt.nce... 0 ROCKER ARM SHAFT A.-move by unSC71!wing tho 10mm w 1.25 mm balt, Insert with the thrt'Mf$d e-nd tow;.rd vou. Align th.. pin ..n.;ida the e.mWft to tPie orO(Wt in tht PUIT!p.!._..lh. • VALVES @]VALVE ROTATOR ..VALVE SPRING / ............... ....... SPRING fJJ HONDA BF75/BF IOO • U. th•..-d•l tool to com.,._ thi $Pfin._ •nd it'Wbll the "'•'•• cotten. • Make lUre the c:ou•• M.-t in th •oov• propef ly. RETAINER (EX) DISAS EMBLy, .;; SPRINGCompr•tN•prifltwithyour ' RETAINER (IN)--""•' end tlidrt thf ,..._;,.... off tht vtolve st.tm to rtmovt. [Ij Note instelhrtion di1.ctlon. w CYLINDER BARREL 59 (38 xss.. •. .!!>8 >trl'lted oro P;:..g.. 34. 74 [I]THROTILE ROD @] HONDA BF75/BFI 00 Do root bend 0# .ur..ighten when df:s· Hoo'c one end on the throttle .arm and tht other CN'I the c:vunw. • SHIFT SHAFT (Engine $8rial number raniJII 1000004-1299999) [IISHIFT SHAFT ASSEMBLY: [D ASSEMBLY :01edl that th41 roller fuUuW5 d.oe cem eontO\I., properly in e..h '"' position. Ali9n the c:utout of the slloft with the ho\4! in t"'-thlft .,.. tnd ioMttll tht 6 ;.t 25 mm bolt. Tight.. thot bolt tKurety. 75 ill HONDA BF75/BF IOO 6 x 25 mm BOLT ASSEMBLY : tk ,...,. 10 tlahttn the bolt to th• IC)Cieifi•d 'torque. Oth•wl'M:, the­bolt INY bttn(l, TOQI!teni'lt torque : 100 k.t..m f7 ft·lb) With ttw llhtfl ftft, .rm. 1r1c1 rotler inn.IIM In Cht fo,_.rd POtition, 8lnd thot ' lhlft rod in the fQ.. position, tum ttMI dlift rod JOint to lficln tM Ullk..t pin ho..._ TM11 ii"'SUII bpin. NOTE: Tht hoof• will lltu•Uy aUen If 11'1• thift rod folnt is twmed ell tht .,...., in •nd thton unleftWed 4.. turnt. 10. SWIVEl CASE/STERN BRACKET a. OISASSEMBL Y/ASSEMBL Y • SWIVEL SHAFT MOUNT RUBBERS AUlMSLV .. 76 lftM!ft il'ltO the to 11\. Oow.t fits lnto U.. 9roo" in VIe ,,,...,. 0 DOWEL PIN 78 ill R-STERN BRACKET 78 FRAME HONDA BF75/BF IOO mTHRUST MOUNT RUBBER ASSEMSLV ..•C:'** for cllt"*•tk>ft ., sep.rttion.• Do ftO.. intttll u..t down. }( 14... ( 2) ASSEMBLY : • TlthNn through m. &pl'ing and tt...IM1 tht friction • "'it boh controh dtt ftM(ing handl•blr mo..· ....... HONDA BF75/BF IOO • REVERSE LOCK 1Il 77 [2]L-STERN BRACKET [9lTo tilt ..RETURN HOOK SPRING ASSEMBlY : Hnok bo h ends of tht lP'ing on dtt ,.,. v.." lock w•th tlo Cfflt• '"'int on hfl' $wr .. ....w. .. WIVEL CA E ..DISTANCE COLLAR 0 Aher aswmblv. ch.c-k op.. o SWIVEL CASEfTIL T LEVER ConnllC"t one end to the tilt lever ill'ld tNt otMr ond to the hole in tf)(! u11v.rsa lock. IPa'(le 771 !DJTILT LEVER ..10 mm WASHER [IjTILT SPRING ..8 mm WASHER 0 • TILT LINK .. TILT LINK fi?J JJ GREASE NIPPLE 78 HONDA BF75/BFIOO TILT BOLT L-STERN BRACKET I. USE n-.t SSO:tiA.. TOOt. "rl.i OAI\IEA ·:>ili.U•-93£0:10::' TILT LEVER BRACKET [· ;...f...:.L..n.all the LINK SPRING ASSEM8l Y : Hook the sprint on the swivet case .:and lilt link a.. Jhown. 11. PROPELLER/GEAR CASE a. OISASSEMBLY/ASSEMBLY o PROPELLER Ill ANOOE METAL A$$£MBLY: • Repleot if corrodiNf. HONDA BF75/BF IOO • Whtn ,.,,. si:te anodt metll i• [I)OJ iNtllltd for ..,ly mod.t ..optionel}, drill hoi• On 1M Pl•tt • thowl'l, GEAR CASE COTTER PIN 79 Y/ASSEMBLV : Whan rt.,ovint 8ol\d instt..lline tile pro..u.., Shtft, rnale:e ture tht lfaM­miwiO<'Io if; Mt in FORWA'AO. 6203 BALL BEARING OISASSEMBLY: ASSEMBLY : • Alwtyt UN the HONDA p n (neinl.. n•U. Ae:..• thq be:ar ng by using tho special toot [I]"(:Joanng (lmoVflt 07945-935000 1 .·· ASSEMBLY: SHEAR PIN Comote$<9 the betning by usJng me liP4!cUII tccl REVERSEBEVEL GEAR THRUST R ASsEMBLY : • li'I$Utll wtm me ti'OO'H end feeing the geet. .. 17 mm WATER SEAL C»SASSEMBL't:RM'•0\•1! lhl: b..ming by w;ing th.. ..ci'' too• "&:..11ing ramovor 0794S-93S0001.'' A.S$EM8lY: Compr•u;.. tl'l$ t;e_.ring by U$•"0 the SUU<:iltl tOol "Att('Ch(nent driver A 07946-9350101". WcAP ..PROPELLER ASSEM81.Y : .. th..t Itt. sh .. r pln Itpropttl-,.POSittoMCI In the 11100"• in the bu· thing. • GEAR CASE ISee also P. 811 t:U Removu th11 6 mm bolt to remov& dick rollat IS). Aamove shift rod joint HU by turning it ex.t. 80 HONDA BF75/BF IOO (2) R.move ruetifiet (3). the cotter pin. and 6 mm ,levis pin 14), •4) Remove five 6 mm bolu (?I •nd ltL't!tt1• ,. .. ..-18) from ext•ntion e3511 {9). o GEAR AND EXTENSION CASES !II ROD JOINT .. [}1 A•rnow the joint to Mpatllltl th1 gMr c:ae. from tl'le llUinsion CtM. ASSE LY: Sc:u:w the sl\ih 101J joint elf th.. way down. thOt\ llnl;(:r(l.$• Check for wNr 0'1' tf'tck" • Slldt tM imf)tlttr cwtt lh• pinion sheftby •iivnin<;. 11,.ir ,...lions. wGASKETS 82 HONDA. BF75/BF IOO iJJ • tnJ;fl!itl thA tlovslnt whilt" rotttlnoI the pini0>11 bi-t doc:kwise. I PINION SHAFT CASE HONDA. BF75/BF IOO • PINION SHAFT/FORWARD BEVEL GEAR 16 mm WATER SEAL DISASSEM81.Y: R.rhowt the !);.<(Iring by 1.1sing thfl sp::<:i..l tool ··s.aring removl!f sel 0793-6-9350001.'' ASS£M9l¥: Comprus ..he be&ling by usi.. the special tool "Attachment driv'er 8 07846-!>350200'' [!)NEEDLE ROLLER BE.I\RIING PINION SHAFT I I I I I FORWARD BEVEL GEAR WATER SCREEN OJSASS€MOLY: I I Push the scttcn 0\11 of tht , iN' cue hom tM inside ; with tht f..t •M of a $QI'e¥fdti't"ttt. ASSEMBLY: THRUST BEARING WASHER ASSEMBLY: • SHIM AND WASHER SELECTION .2.1 [j]THRUST ..THRUST WASHER ..REVERSE BEVEL GEAR [91-THRUST WASHER MARK .. ' THRUST BEARING WASH ER MARK G]GEAR SHIM MARK -Ex.ampi- CASE. MARK : " •f 81" ·..) : ONr 1l1im A (0.10 mml • 2 ® : TtH-vst beering waW.er 8 (2..05 mml 1ll l 84 HONDA BF75/BF IOO PINION SHAFT ]] BEARING .. THRUST BEARING WASHER .-5BEVEL PINION PROPELLER SHAFT FORWARD BEVEL GEAR .. GEAR SHIM A: 0,10mm(On1!) THRUST BEARING WASHER A A A: 2.00mmlonel • • 8: 2.05mm one) c c C: 2.10mm(on.) B2J THRUST WASHER 1 c C: 2.10nwntone) • PROPELLER SHAFT HONDA BF75/BF IOO UtinO th• tPtCial toot, push the thift.r pin OUt to ,.movt die push rod, dutCh Mifttt •nd IPrint hom tl'lt p.-op.,ler ....... CLUTCH (DISASSEMBLY) ..07968-9350000 PIN FLARE TOOL • GEAR CASE NEEDLE ROLLER BEARING DISASSEMBLY OISAS:SEMBLY:$rM ttt. sp.cial tool in the Mtrint • the)WTt a.M t11r" the · h&ndlt doekwiM until tighL lbrowtile -itht et.inst thtl .Mndle by slidint i1 ov.r the rod. R..,_t until tho& bewlno CCHI* ottd. i21 Looten the k>Ck rwt •M removt tht throtde <*>It holdtf trom the cab(e by ut'll«ewino the 6 mm bolt. Diaconrwct the e.ba. from the thronle •rm. (31 Pull llethe 6 mm bolt 3nd W3llt'ler from the shift shat., th..M tak• out the 'h..h. NOTE: If the 111'111k is diHiwlt to rP.move, e•p;)nd theshift <}rtn groo"e whh •&erewchlvtr. UU Align the cutOut in tho& tllrnc>te COI'ItrOI f1\1h l$1181 end with ..tlo& hOle in the dlikarm and inNII the \evo• in the Wit bole. S.Curtwhtl Ul9 6 mm bohand washM nmoy.cf in St• l5) above. NOTE: • Do l'tot drop thowo$hvrol'td c;ulllll. • ..Of •Afines..-ial numb.. 1300001 •I'd sub..uent, Me lld4iti01'tlll instnJCloOI'I on 1):>;QI'Idint FORWARD aM REVERSE POllllons. If edjun· mtont is Meded, tum th1 cab!• el'd pi¥01 es n«MS:ary.S. surt to r..nst11U the loek pin on the pivot .Jftor .-.ctjusting. Ch.ck thet the tfuo"l• will not op•&te white ..hitting tN "!l 01'1 cage-90. 91 HONDA BF75/BF IOO THROTfLf CONTROl. CADLE J SI-IIFTCONTRDl.CABLE '! CABLCCLAMP ·..• 511: 10mm80LT 1 PIVOT 1 SHifT LEVER 1. THAOTTLI;: ARM .. lOCK PIN 1 CARBURETOR THR01llE 2 SHIFt LEVEfl .f DETENT ROU.ER ·J. FORWARDtt: REVERSE @ WHEN INSTALL.ING THE STEERING DEVICE -n.. bnlck_. 1$ .. to be uNCI with wlr..cy.. n•rlng tQUipmtnt. If • jOJnt·rod ctwiot is to be installed pl..-t.o": 'The motOt IWIY be tj:Jtod to tht fw.t WG) wl(h • jl)lnt rod insutll.t.. but t fulll tilt (72"') i$ blyond the rod"• ,.,._, To til1 the motor comp ..c.Jy, either' n.mowe ttlt juretor noat chamber. If the fuel tnel i-s lowered, the float mowesdown. allowing the valve to move away from the valve .eat. In this way a con.5tant fuel level is: maintained in the float chamber. d, Throttle Limite. The carburetor ha. a limiter which comes into op..ratic:>n when tht shih ltvtr isMt in Nautral or Rners.e. As the shift lever 124} is placed in Neutral or reverte, thf! cam (25} on the shift shaftit ro..ted in dirf!c-tion "A;'. With the eam in this poRtion, the throttle arm 126• is s-topped (in direction 81 once it reaches the h1tf-open position. ...:::::.·::: :::::::::: .. . . . . .. :: ::: ·-.. <[]) @ 4. POWER TRANSMITTING SYSTEM HONDA BF75/BF IOO A 4-c:ycft, water cooled, 2-cylinder, 197 cc overhead cam1haft gasolint e..ine Isinsu.llcd on the BF76 ;.nd BF100. The turning effort of the c::rank1haft (1) is transmitted to the prop..ler shaft (51 through tht vertical shaft {2), pinion shaft (3) and bevel gean (4). a. Power Flow -FOfwatd When the shift lever (6)is placed i.n Forward, me shift rod (St it moved in direction "A" through the shift shah C7).This causes the spri.. to move the clutch shifter in direction "B"; andinto efl91f1mtnt with the forwvdbevel gear (101. Power from the engine is then transmitted thtO\Igtl the.... pinion (111. forward be¥el gear, dutch shifter (9) and pro· peller shaft (5) to the propeller. The pro..ller rotates c:h>cl..rk at the plup (9). 98 HONDA BF75/BF IOO b. Spark Advancer The spark advancer it housed in the eam pulley, When engine speed increases. '-"tntrifug...l forc:t moves th• .dv•nur weight5 (111 outward, causing the rotor {10) to tum in the direction shown by the arrows. Thil advances ivnition timing in proportion to engine: rpm, e. Oil Preuure Warning DfWice The otl pteuure warning device consists of a preuur& rwitch (13), a lamp (12) and wiring. The switch is insulled on the cylinder block. As th• angina starts, oil ptt:$Sure do.s lhe switch and the exciter coil output causes the lamp to glow. As engine ..ed reK:hes 2000-2500 rpm. the light will be ptainly visible. HONDA. BF75/BF IOO d. D.C. Output Cireuit-Batterv Chaf9in9 The entire circuit consins of a ehatging coit. connector$, a fuse and a •ilicon diode rectifier. A.C. output from the chuging coil C14) under the flywheet is rectified by means of me rectifier (16) and bauila..e &t the o.c. outpu1 receptacle (16t. Afuw C17) is inHrttd Intnt circuit between the rectifier and the receptacle to prote-ct against damage to tht clrculu. CAUTtON: Whtn tht batury charging plug Is not interted In the D.C. reeeptacJe. the expo.td plug prongs '*" thort c:lreult your battery if they contact any metal surfiJC8. . .... e. EngiM Sto9 Switch When the switch hdeprmed, the ignition primary circuit is grounded, ttMreby st by raising th.e utension tast. To releue the tilt mechanism, teturn the tilt lever to "RUN" and raise the extension Cllt slightly tow11rd you, ..nd lower h tlowlv. The tilt lever 1hould be kept in RUN while opt,.ting the outboard. b. Adjust Rod The mechankm k engaged when the tilt ltVIf Is In the RUN polition s.o d'tat the unit c.nnot be tilted. NOTE; Do not thift the motor into r..ent whh me tilt lever tn the TILT position. This causes the rP.vers.e lock hoak to disengage with the adjust rod. 102 32.5" BF75· BF100 '85 SUPPLEMENT CONTENTS HONDA BF75/BF100 PREFACE This supplement desclibes service procedures for che '85 BF76 and '86 SF100 Outboard Motocs, serial numbers 1700001 and subsequent. Refer to the base shop manuai iNo. 6688\ 20Jfor sorvlce procedures and data not included in this supplement. 104 Paper book Part no. 6688120Z CONTENTS I. SERVICE INFORMATION ......................... 106 1. TUBE ROUTING ............. ................... 108 2. MAINTENANCE SCHEDULE ... ...... ....... 107 II. MAINTENANCE...................................... 108 1. THERMOSTAT CHECK ....................... 108 2. FUEL STRAINER REPLACEMENT ......... 108 Ill. MAJOR MODIFICATIONS . ..... .... .... . .... . ... 109 1. ENGINE PART.................. .. ...... 1092. FRAME PART........... ............. ......... 110 105 HONDA BF7&/BF100 I. SERVICE INFORMATION HONDA BF75/BF100 1. TUBE ROUTING 106 (6) FUEL CONNECTOR (4] TUBE CONNECTOR !11 FUEL PUMP !21 INTAKEMANIF LD (3] FUEL STRAINER 2. MAINTENANCE SCHEDULE stRVICE PERIOO at rNervIndicated month or operating hour il'lt.rva.1, whiche-ver co.. first. E CH USE Engil'l(l 011 GOnt knob to the ON position, pump the primer bulb, and check for !oaks. • Be eure that eny fuef drefned from the outboerd motor Ia etored In 1 sate oontalner. 108 121 THERMOSTAT l VALVE LIFT 121 The errow merit lndl..­ the fuel flow direction. 1. ENGINE PART • o.w-head • Cylinderborrel• l"'-t nwnifold • 011.- lntenlll aurtace of wa1er Jacketfor lbow part& hal Nld ita anti­CQI. ftnlah modlflld. Thorm001at meteriel ..w..d. lnCI'IIM In lift 1mount at fuJI open. l'!woftlo--r-. .,, Hlllf-ourfoco cooling Mllllrill C2720 lbraool F\JM _., lift 2:j mm Materiol lleBM (braoa) .•' : Zinc chromate finilh (onti-OC>II'()Oion finiohl . portFull clrcu..ce weterjl.. andpooilionof ......-port ,.. boon chongodIM ou-cooling). Mlta1ol CS101 !bronze! Full _., lilt J!i rrm Material rnin POM Ill. MAJOR MODIFICATIONS 1.' ENGINE PA T :IKOND.A. Bm/BF'HIO Tlgt>tonlog bolt for inlet ...,old ond oxhouot manifold lplpo) INme Stud bolt ancr eapnut Flollgl bolt Stud bolt .....:1 capnut 110 2. FRAME PART Serial number -111999!1!1 Revised poeitlonlng of anode metal lower aurface of cavitation plate 111 HONDABF75/BF100 Serial numbet 1700001- Upper surfaoe of cavitation plate BFBA SUPPLEMENT CONTENTS ..-DA MOTOR CO., LTD. 11187 112 HONDA8..8A Paper book Part no. 6688121Z SPECIFICATIONS .................... ,114 SPECIFICATIONS . ....... ........ 114 .. SERVICE INFORMATION .. •.....•.•• ••• 115 OUTLINE OF CHANGES .•...•.•. •• • · 115 Ill. DISASSEMBLY AND SERVICE ... . . .. ... . . 116 REVERSE LOCK/SWIVEL CASE . ..... .. 116 PREFACE This "'''Pt""'nt _;.,.. aonric:o procoduns tor the BF8A Outbo.ttd Moton. which Itt not c:ov.red in the tme Shop mt!llloi 8F7&.BFt00 (151188121). NO PART OF THIS PUBLICATION MAY BE RE· PRODUCED WITHOUT WRITTEN PERMISSION. I. 1. II. I. t. HONDA MOTOR CO., lTO. SERVICE PUBLICATIONS OFFICE 113 HONDA. BFBA I. SPECIFICATIONS l SPECIFICATIONS • DIME SIONS AND WEIGHT 114 HONDA II. SERVICE INFORMATION BFBA t OUTLINE OF CH"NGES CAMSHAFT CARBURETOR IMPELLER PUMP COVER ANO GASKETS REVERSE LOCK SYSTEM Valvt tippet clt.arence IN : 0.12 t 0.02 mm (0.0047< 0.()()()6 in I DRAIN SCREW ENGINE COVER Vtlvt tappet eiHtance IN : O.OBf 0.02 mm (0.0031 t 0.()()()6 In) ORAINSCREW HONDA BFBA Ill. DISASSEMBLY AND SERVICE 1. REVERSE LOCK/SWIVEL CASE (3( ADJUSTING ROO a. DISASSEMBLY/REASSEMBLY It) TILT BOLT (II) L·STERN BRACKET (10) CLAMP GRIP SINI"' pin -J1niQIItion must bo -whll 1M tpodol 1001. "PIN DRIVER". lo ooro eo ......... tbo tpringpin tlw'ow-" dat upper hoi• tn tM breoket, thl'h 1nd lower hole in thebracQt to MClUre the brecket. SPRING PIN [19) 6mm HEX 118) LOCK WASHER (17) TILT LEVER [16) TILT LEVER 8R.f.OCET ex 180mm HEX BOLT 161 8x 1.5mm HEX NUT 17) TILT SPRING 181 DISTANCE COLLAR SWIVEL CASE SWIVEL SHAFT TILT SHAFT (4) REVERSE LOCK COLLAR TILT LINK SPRING TILT ARM (14) TILT LEVER BUSH (2) [9) TILT SHAFT BRACKET (13) (IOJ 3.0 x 25 mm SPRING PIN [12) REL£ASE ROD BRACKET (II) 2.5x22mmSPRINGPIN HONDA OUTBOAD MOTOR SHOP MANUAL NEWS BF75·BF100· Power Equipmtmt BFSA r:,..:.· •s:p...a.· SOME PARTS OF BF75, BF100 AND BFBA ARE CHANGED Page 1 of 2 6688122 CHANGE LOCATIONS Fr me serial number 1100001 to subseqyant P.200 No.2 FUEL LINE COP.200 NNECTOR A n r-JOttiT n INNER SUJ. No.3 SIFT ROD ..62. 120. 160,172 • Smrn F",_ Smm PIN: SHlFT ROO JOt tiT No.4 D.C. OUTPUT CONNECTOR • The h les will us he pu cfi align when the shift mali( of the shift jointrodrod.· The holes will us lly lly alig_n when the shift rod i$ i,s turned in to ISK)BSOI905..(A) HONDA MOTOR CO .• LTD. SERVICE PUBLAICAnONS Page 2 of 2 P. 1 No.6 WIRE ROUTING P.32 No.7 WIRING D AGRAM ... ____ 1. 3-4 2. Service Information 5. 23 3. Maintenance 24.29 4. and Service 30 -93 5. Construction and Function 94 -102 6. Supplement BF75 . BF100 103-111 7. BF SA 112 -116 8. Manual News 117-118