Honda 1986 CH250 Service Manual Download Page 1

Summary of Contents for 1986 CH250

Page 1: ...tions start with an assembly or system illustration service information and tro1ubl eshloo ting for the section The subsequent pages detailed proce dures If you are not familiar with this scooter read...

Page 2: ...n be highly explo sive 1 0 not smoke or allow flames or sparks near the battery eSJ1 c ialJj while charging it 1 Use genuine Honda or Honda recommended parts and lubricants or their equivalents Parts...

Page 3: ...ber is stamped on the frame below the seat The carburetor identification number is stamped on the side of the carburetor 1 The VIN Vehicle Identification Number is attached to the left side of the inn...

Page 4: ...k 100 0 mm 3 94 in Power unit swing arm 97 5 mm 3 85 in 150 330Ib 4 00 10 4PR Identification number Valve clearance cold IN EX Engine weight Idle speed Air filtration Cylinder compression at 600 rpm V...

Page 5: ...031 0 035 in Ignition timing F mark 2 BTDC at idle Battery capacity 12 V 12 AH Fuse capacity I Main 20 A I Cooling fan motor 5A Headlight taillight 10 A Key illumination 5A Horn 5A Turn signal Brakel...

Page 6: ...0 6 0 9 Front shock absorber lower nut 2 8 15 20 1 5 2 0 11 14 Front shock absorber upper bolt 2 10 35 45 3 5 4 5 25 33 U nut stem lock nut 1 25 4 5 13 0 5 1 3 4 9 85 1 25 4 10 20 1 0 2 0 7 14 After 8...

Page 7: ...Remover handle 07936 3710100 9 Remover 07741 0010201 Remover 07936 3710200 9 remover 15 mm 07936 KC 10500 12 Remover weight 07741 0010201 Remover weight 07936 3710200 12 Valve remover 07942 MA60000 6...

Page 8: ...4 Attachment 37 x 40 mm 07746 001 0200 9 Attachment 42 x 47 mm 07746 0010300 9 14 15 52 x 55 mm 07746 0010400 9 24 x 26 mm 07746 0010700 8 14 10 mm 07746 0040100 14 12 mm 07746 0040200 9 14 15 mm 0774...

Page 9: ...sses with electrical tape or tubes if they do contact a sharp or corner Clean the attachirlg surface before tape Do not use wires harnesses with broken insulation Repair by Mr moor them with a protect...

Page 10: ...85 21 THROTTLE CABLE 3 FRONT BRAKE CABLE GENERAL INFORMATION 111 2 SPEEDOMETER CABLE 8 BREATHER SEPARATOR 11 DRAIN TUBE 9 CATCH TANK 10 CRANKCASE TUBE 4 BRAKE LOCK CABLE 1 9...

Page 11: ...GENERAL INFORMATION 4 STARTER RELAY 5 COl UNIT 1 10...

Page 12: ...GENERAL INFORMATION 10 COOLING FAN MOTOR FUSE HOLDER 12 COOLANT RESERVE TANK 9 SPEEDOMETER CABLE 1 11...

Page 13: ...GENERAL INFORMATION After 85 I THROTTLE 3 BRAKE CABLE 1 F SPEEDOMETER CABLE 1 DRAIN TUBE 4 BRAKE LOCK CABLE TANK 110 CRANKCASE TUBE SEPARATOR 18 1 12...

Page 14: ...4 STARTER RELAY 5 COl UNIT GENERAL INFORMATION REAR BRAKE CABLE 8 IGNITION COIL 1 13...

Page 15: ...GENERAL INFORMATION 10 COOLING FAN MOTOR FUSE HOLDER 31 AUDIBLE PILOT 5 6 IGNITION HORN SWITCH 12l COOLANT RESERVE TANK 1 14 SPEEDOMETER CABLE...

Page 16: ...s produces carbon monoxide and hydrocarbons Control of hydrocarbons is very important because under certain conditions react to form smog when subjected to Carbon monoxide does not react in the same w...

Page 17: ...ng acts or the causing thereof 0 The removal or inoperative by any person other than for purposes of maintenance repair or replace ment of any de llice or element of incorporated into any new vehicle...

Page 18: ...E LABEL 4 13 attach an update label on the fuel tank as shown in Service Letter No 132 VACUUM LJII Ic II J o IVI LABEL Ir llif lrni l model only The Vacuum Hose HfHlTlnn Diagram Label is attached to t...

Page 19: ...LUBRiCATION 2 0 31 1 OIL PIPE 2 OIL FILTER SCREEN...

Page 20: ...0 Imp qt at 0 2 liter 0 21 US qt 0 18 Imp at disassembly 0 15 liter lO 16 US qt 0 13 Imp qtl at change Use Honda 4 Stroke Oil or equivalent API Service Classification SE or SF VISCOSITY SAE 10W 30 Oth...

Page 21: ...re the O ring is in good condition and install the filter screen and cap TORQUE 10 35 N m 11 0 3 5 kg m 7 25 ft Ibl oil page 2 1 Trmnilcm the oil Pour the recommended filler hole ENGINE Oil CAPACITY 0...

Page 22: ...t and oil separator cover Remove the circlip and remove the oil pump drive chain and driven sprocket Remove the two oil pump IIlUIUlliUl j bolts and remove the oil separator and oil pump Oil PUMP DISA...

Page 23: ...MIT 0 20 mm 0 008 ii ll Check the rotor to pump body clearance SERVICE LIMIT 0 12 mm 0 005 ii ll clearance OIL PUMP ASSEMBLY Install the outer and inner rotor into the pump pump the flat on the shaft...

Page 24: ...and oil separator Make sure that the pump shaft rotates freely Install the pump driven sprocket and drive chain then set the circiip on the pump shaft securely Install the oil separator by the tab of...

Page 25: ...e the oil check bolt Remove the oil drain bolt and drain the oil th rouQlhlv Reinstall the drain bolt TORQUE 10 14 N m 11 0 1 4 kg m 7 10 n Ib Make sure that the drain bolt washer is in condi tion Fil...

Page 26: ...ant or a light weight oil 2 TRANSMISSION OIL SEE PAGE 2 1 I 4 RIGHT WHEEL BEAR DUST SEAL 3 BRAKE CAM DUST SEAL ANCHOR PIN I I I I I I 51 MOLYBDENUM DISULFIDE ENGINE HANGER COLLARS 3 ENGINE OIL SEE PAG...

Page 27: ...del only DRIVE BELT BELT CASE AIR CLEANER BRAKE SHOE WEAR BRAKE SYSTEM BRAKE LOCK LEVER BRAKE LIGHT SWITCH STARTER LIMITER SWITCH HEADLIGHT ADJUSTMENT CLUTCH SHOE WEAR SIDE STAND SUSPENSION NUTS BOLTS...

Page 28: ...6 _ _ _ BELT 3 10 _ _ BELT CASE AIR CLEANER 3 10 _ _ _ _ BRAKE SHOE 3 11 BRAKE SYSTEM 3 11 BRAKE LOCK LEVER 3 12 BRAKE LIGHT SWITCH 3 1 2 STARTER LIMITER SWITCH 3 12 HEADLIGHT AIM 3 13 _ _ CLUTCH SHO...

Page 29: ...I 3 8 I j t 1 1 W RADIATOR COOLANT YEARS R I 3 8 COOLING SYSTEM I 3 8 TRANSMISSION OIL 2 6 DRIVE BELT 3 10 I BELT CASE AIR CLEANER 3 10 I BRAKE SHOE WEAR 3 11 I BRAKE SYSTEM 3 11 BRAKE LOCK LEVER 3 12...

Page 30: ...asure the throttle grip free play at the throttle FREE PLAY 2 6 mm 1118 1 4 inl THROTTLE OPERATION Replace the fuel filter with a new one when indicated the ml l ntAn r schedule 3 21 Remove the right...

Page 31: ...adjus tm en1ts are made with the lower nuts Remove the left rear cover and the body center cover 13 2 Remove the air cleaner chamber by removing the tube bands the throttle cable by loosening the lock...

Page 32: ...or at full throt tle or if the level can be seen in the transparent sec tion of the drain tube 2 CENTER ELECTRODE SPARK PLUG Remove the left rear cover 13 21 Disconnect the spark cap Clean any dirt fr...

Page 33: ...ign the T mark on the camshaft with the index mark on the cylinder head cover to bring the piston to TDC Dead Center on the compression stroke Loosen the valve adjuster lock bolts which are located on...

Page 34: ...ow water pressure Replalce the radiator if the air flow is restricted over more than 20 of the surface NOTE CARBURETOR IDLE SPEED 13 2 center cover 85 Remove the After 85 Remove the adjustment hole ca...

Page 35: ...ps The maximum reading is reached within 4 7 seconds NOTE the is incorrect check the COl unit pulse rotor and pulse generator and faulty parts Refer to Section 16 Electrical Equipment CYLINDER COMPRES...

Page 36: ...cover the element cover the three screws the left rear cover it CAUTION Do not oil the element the element Remove the follOlNir10 the left rear cover 13 21 the element cover tube band the three elemen...

Page 37: ...ns with the reference mark 6 when the brake is applied fully MAINTENANCE After 85 BRAKE SYSTEM FRONT BRAKE Measure the front brake lever free play at the tip of the brake lever FREE PLAY 10 20 mm 3 8...

Page 38: ...apply grease to the brake lock pin sliding surface of the cam and brake lock cam pivot Refer to page 15 8 for brake lock adjustment BRAKE LIGHT SWITCHI STARTER LIMITER SWITCH NOTE Perform the brake li...

Page 39: ...clutch operation by bringing up the engine speed gradually If the scooter tends to creep or the engine stalls check the clutch shoes for wear and replace if necessary page 8 9 SIDE STAND MAINTENANCE...

Page 40: ...anger bushings if there is any looseness Tighten all rear suspension OI lts and bolts NUTS BOLTS FASTENERS Check that ill chassis nuts and bolts are tightened to their cor rect torque values section 1...

Page 41: ...e control cables do not interfere with handle bar rotation Raise the front wheel off the ground and check that the handlebar rotates freely If the handlebar moves unevenly binds or has vertical move m...

Page 42: ...FUEL SYSTEM After 85 After 85 I I j 85 4 0...

Page 43: ...move the carburetor maintenance lid on the body center cover til When the fuel system parts note the location of the O rings Replace them with new ones on reassembly til Before the carburetor drain th...

Page 44: ...at CI g led air cleaner Intake air leak Im JfOlper auto hv t t r opElration ImlJrolper throttle operation Hard or stalling after startll1lg Imlnolper auto operation malfunction carburetor Contaminate...

Page 45: ...er from the air case and carburetor Loosen the throttle cable lock nut adjuster nut and disconnect the throttle cable from the carburetor Disconnect the auto wire connectors Remove the heater tube joi...

Page 46: ...not within the limit replace the auto bystarter with a new one Connect a 12V to the auto wires and wait about 5 minutes Connect a pressure tester to the fuel enrich ment circuit and a pressure Replace...

Page 47: ...other 1 iJL 21 VALVE Insert the auto into the carburetor body untill it bot toms Position the set plate into the upper groove in the h l t tpr with its closed side toward the carburetor body Install...

Page 48: ...and needle from the piston Inspect the vacuum for wear or other damage Inspect the needle for excessive wear or other dam age Check the for and tears Install the vacuum piston into the carburetor and...

Page 49: ...specified vacuum to the air cut off valve While the vacuum light pressure to the air cut off valve with the pressure pump 2l VACUUM PUMP A937X 041 XXXXX or ST AH 260 MC7 U S A onlyl After this test o...

Page 50: ...rew in and count the number of turns before it Make a note of this to use as a reference when the screw CAUTION 85 11 PilOT SCREW II 21 LIMITER Do not install the limiter cap on a new screw until afte...

Page 51: ...ber FUEL SYSTEM 1 SCREWS Remove the float pin float and float valve 1 FLOAT VALVE 2 FLOAT VALVE INSPECTI ON Inspect the float valve for grooves and nicks Inspect the operation of the float valve 1 FLO...

Page 52: ...ompressed air Install the needle and needle jet Install the main jet and slow jet Install the float valve float and float pin 1 SLOW JET 41 FLOAT VALVE 51 FLOAT FLOAT LEVEL INSPECTION Measure the floa...

Page 53: ...the vacuum tube to the insulator Install the throttle cable to the carburetor Connect the auto wire connectors to the wire har ness Connect the air tube to the air cut off valve Connect the fuel line...

Page 54: ...perating temperature Stop and go for 10 minutes is sufficient 4 Attach a tachometer to the manufacturer s in structions 5 the idle speed with the throttle stop screw IDLE SPEeD 1500 100 rpm 7 the idle...

Page 55: ...is to be continuously above 2 000 feet the carburetor main jet must be replaced with altitude type as follows to drivabillty and decrease exhaust emissions HIGH ALTITUDE ADJUSTMENT Do not smoke or al...

Page 56: ...ow does not stop clean the vacuum tube and re check it Disconnect the vacuum tube from the carburetor insulator and vacuum with a vacuum pump The fuel valve is normally if the fuel flows out from the...

Page 57: ...in the fuel from the fuel tank Disconnect the fuel and vacuum tube from the fuel valve Loosen the lock nut and remove the fuel valve from the fuel tank IiAII ll 1i CLEANING FUEL Remove the fuel strain...

Page 58: ...clockwise Make sure that the arrows are Clllld U R nlnl t the wires and reinstall the left rear cover REMOVAL Remove the and left rear covers and body center cover section 13j Disconnect the fuel tub...

Page 59: ...After 85 FUEL SYSTEM 4 17...

Page 60: ...hen remove the spark plug wire from the air cleaner case Disconnect the final reduction breather tube from the air clean er case Loosen the two tube bands and three air cleaner case mount bolts Remove...

Page 61: ...e PCV if vacuum is not maintained 5 TO CARBURETOR FUEL SYSTEM 2 TO AIR CLEANER 3 TO CHARCOAL CANiSTER 4 PURGE CONTROL VALVE 1 VACUUM PUMP ST AH 260 MC7 U S A only Remove the vacuum pump and connect it...

Page 62: ...hose l li lrnps Secure with the hose clamps whenever spElciflied Check that the hoses are not sharp edges or cor ners VACUUM HOSE ROUTING DIAGRAM 111111 fAlilf FIlIltl2444115 CUM EnPllAlIYE FAIIU llil...

Page 63: ...ENGINE REMOVALIINSTALtATION 100 120 N m 10 0 12 0 72 87 ft lbl 5 0 17 22 ft Ibl...

Page 64: ...p qtJ at disassembly 0 8 liter 0 85 US qt 0 70 Imp qtl at change 0 2 liter 0 21 US qt 0 18 Imp qt at disassembly 0 15 liter 0 16 US qt 0 13 Imp qtJ at change 1 0 liter 1 06 US qt 0 88 Imp qt at disass...

Page 65: ...13 Drain the engine oil 2 2 Drain the coolant 12 3 Disconnect the fuel tube from the carburetor Disconnect the thermosensor wire Disconnect the water hoses from the thermostat case and water pump Remo...

Page 66: ...bes from the carburetor heater Disconnect the starter cable from the starter relay Disconnect the alternator and pulse generator wire connectors and coupler ENGINE REMOVAL INSTALLATION Disconnect the...

Page 67: ...Remove the brake cable clamps Remove the rear brake cable from the brake arm the rear brake adjuster Remove the rear shock absorber mClul1ltin g bolts and shock ab sorbers Remove the 5 4 mouI11ting n...

Page 68: ...operation page 3 41 Rear brake pedal free play 3 1 2 ENGINE INSTALLATION Install the engine in the reverse order of removal Apply molybdenum disulfied grease to the new stall them the inner bu hirlgs...

Page 69: ...CYLINDER HEADNAlVES 10 14 N m 1 0 1 4 kg m 7 10 ft lbl 6 0...

Page 70: ...lled in the frame ITEM STANDARD mm in SERVICE LIMIT mm in 1 241 11 241 4 955 4 970 0 193 4 975 4 990 10 193 Cam height 5 00 5 012 5 03 10 198 I _ r 0 010 0 037 0 08 10 003 0 030 0 057 0 10 0 0041 I _l...

Page 71: ...aking or head WI rn Ad or cracked head ylll U and IRefer to Section 71 performance These can be diagnosed by a compression test or by tracing COml lrel si n too Excessive carbon build up on chamber Ex...

Page 72: ...e the folllov in fuel tank 4 16 fuel tank insulator Remove the two oil bolts on the cylinder head cover and crankcase cover and remove the oil bolt CYLINDER HEAD COVER REMOVAL CYLINDER HEAD COVER DISA...

Page 73: ...eaner case Remove the left side rail 13 3 Remove the left crankcase cover with the air cleaner case NOTE the bolts into the crankcase Remove the cam chain tensioner Remove the cam chain tensioner Remo...

Page 74: ...k that the inner race fits on the shaft Replace the camshaft assembly if the races do not turn or if they fit on the shaft CYLINDER HEAD REMOVAL Remove the carburetor page 4 3 Remove the exhaust 15 21...

Page 75: ...into the crankcase 1 VALVE SPRING COMPRESSOR 07757 001 0000 _ _ and remove the valve cotters re seats and valves Mark all disassembed parts to ensure correct reassembly NOTE To prevent loss do not com...

Page 76: ...ge with a edge and SERViCE LIMIT 0 05 mm 0 002 in VALVE SPRING FREE LENGTH Measure the free of the inner and outer valve springs SERVICE LIMITS INNER IN EX 27 6 mm 11 09 in OUTER liN EX 36 1 mm 11 42...

Page 77: ...s the service limits determine if a new with standard dimensions would the clearance within tolerslnce If so replace any as necessary SERVICE LIMITS IN 0 08 mm 10 003 in EX 0 10 mm 10 004 in Reface th...

Page 78: ...articles VALVE SEAT INSPECTION AND REFACING Clean all intake and exhaust valves thoroughly to remove carbon deposits a coating of valve compound to each valve face Lap each valve and seat using a rubb...

Page 79: ...Reface the seat with a 45 is replaced cutter when the valve a32 materiaL cutter remove 114 of the existirlg valve seat a 60 cutter remove the bottom 114 of the old seat Make sure that all Refinish if...

Page 80: ...width a 45 degree finish cutter After the seat apply to the valve face and the valve using pressure After lapping wash all residual compound off the cvlinejer head valve and r n T TOO LOW WIDTH 5 COTT...

Page 81: ...STALLATION Clean any material from the cylinder surface Install the dowel pins and new Install the cylinder head the washers and cap nuts and them in a crisscross pattern in two or more steps TORQUE 2...

Page 82: ...bes down Align the punch mark on the cam with the cvlinl ler head surface and install the cam chain over the cam sprocket CYLINDER HEAD VALVES TORQUE 8 12 N mIO 8 1 2 kg m 6 9 fHbl Install the camshaf...

Page 83: ...floor 13 3 onto the cylinder head into the groove of the cyliindl3r head CYLINDER HEAD COVER ASSEMBLY Install new onto each rocker arm shaft oil to the rocker arm shafts Install the rocker arms and s...

Page 84: ...SILVER 1 8 mm OIL PIPE BOLT BLACK 6 SEALING WASHER 5 Oil PIPE 4 6 mm SH BOLT 101 SEALING WASHERS 9 COPPER WASHER 8 SEALING WASHERS 4 16 the cylinder head cover side is black the oil pipe the right at...

Page 85: ...CYLINDER PISTON 7 0...

Page 86: ...41 0 50 0 020 Oil Side raill 0 2 0 7 0 01 0 03 Piston 0 0 I Q l Q lI 1 71 90 2 831 Piston ta cylinder IA A AliA A AAAil A riA 6 0 10 0 004 Piston pin bore 002 008 1r1 f Q ll 17 04 0 671 Piston pin 0 0...

Page 87: ...he vllin 1Ar Remove the cylinder base bolt and cylinder Remove the cam chain Remove the cylinder gasket and dowel pins Place the rags in the crankcase openings Clean off any material from the cylinder...

Page 88: ...bore for wear or dalmege Measure the 1 0 at three levels in X and Y axis SERVICE LIMIT 72 10 mm 12 839 in Inspect the top of the cyiinder for warpage SERVICE LIMIT 0 05 mm 0 002 in PISTON REMOVAL Plac...

Page 89: ...the piston to cvllindler clearance SERVICE LIMIT 0 10 mm 10 004 in SERVICE LIMIT 17 04 mm 10 6109 in Measure the hole I D SERVICE LIMIT 0 02 mm 10 001 in SERVICE LIMIT 16 96 mm 10 668 in Measure pisto...

Page 90: ...0 672 in Remove the piston rings Inspect the piston for damage and the CAUTION grooves for wear CYLINDER PISTON SERVICE LIMITS TOP 0 50 mm 10 020 in 2nd 0 50 mm 10 020 in Insert each piston ring into...

Page 91: ...P m SECOND 8 OIL Be careful not to the assembly All should be installed with the up After the they should rotate freely without PISTON INSTALLATION Install the piston and piston pin Position the pisto...

Page 92: ...the piston by compressing the piston rings one at a time CAUTION Do not the cylinder over a ring you may damage the piston and piston rings LUUl tJlY install the cylinder base bolt and seal washer In...

Page 93: ...DRIVE PULLEYICLUTCH DRIVEN PULLEY 8 0 50 60 N m 5 0 6 0 kg m 36 43 ft Ibl 80 100 N m 8 0 10 0 kg m 58 72 ft Ib J...

Page 94: ...5 5 33 _ _ Driven face spring free length 98 8 3 891 94 0 3 70 Driven face 0 0 39 965 39 985 1 5734 1 5742 39 94 1 572 Movable driven face I D 40 000 40 025 1 5748 1 57581 40 06 1 5771 Drive face nut...

Page 95: ...UBLESHOOTING starts but scooter won t move Worn drive belt Dalna ed ramp plate Worn or clutch lining stalls or scooter creeps Broken clutch Poor performance at high speed or lack of power Worn drive b...

Page 96: ...the two left crankcase cover bolts and left crankcase cover with the drive belt air cleaner case cover Remove the drive belt air cleaner case cover from the left crank case cover by the band screw Rem...

Page 97: ...or cracks separation or abnormal or excessive wear Measure the drive belt width SERVICE LIMIT 21 7 mm 10 85 in 58 72 ft lb 8 31 TORQUE 80 100 N m 18 0 10 0 Reinstall the left crankcase cover drive bel...

Page 98: ...commercially available Remove the left crankcase cover page 8 3 Remove the drive belt 8 4 DRIVE PULLEY Remove the drive coller DISASSEMBLY Remove the three bolts and the drive face seal cover 1 FACE S...

Page 99: ...ble drive face bushing LD SERVICE LIMIT 27 06 mm 11 065 inl Check the drive face boss for wear or darnalge Measure the O D at the drive face SERVICE LIMIT 26 94 mm 1 061 inl Check the face seal for we...

Page 100: ...t Ibl NOTE Lubricate the inside of the drive face with grease then install the rollers Use 9 of grease and to the inside evenly grease Lithium based grease Mitsubishi HD 3 Sekiyu Lipanox Deluxe 3 Idem...

Page 101: ...p attaching bolts Apply grease 4 5 g to the inside of the drive pulley collar Install the drive face collar with the side out Clean off any grease or oil from the drive pulley faces 0 DRIVE PULLEY FAC...

Page 102: ...oval DRIVE PULLEY CLUTCHIDRIVEN PULLEY CLUTCH DRIVEN PULLEY Remove the left crankcase cover 8 3 drive pulley face and drive belt page 8 41 Hold the clutch outer with universal holder and remove the dr...

Page 103: ...Y Hold and compress the driven pulle l clutc h assembly with the clutch compressor NOTE Do not the tool more than necessary to avoid dalYl8Qing the drive Set the tool in l l vise and remove the lock n...

Page 104: ...eck the clutch place if necessary Check the driven face assembly for wear or dalTlage Measure the driven face O D SERVICE LIMIT 39 94 mm 11 512 in Check the be arirlgs for play Replaced the if they ar...

Page 105: ...the Apply 11 13 9 of grease to the inside of the driven face Pack the cavities with grease Drive a new outer into the driven face with the sealed end out Install the snap ring NOTE Do not allow the b...

Page 106: ...GHT 2 CLUTCH SHOE CLUTCH SPRING ll 4 DRIVE PLATE J i 5 DAMPER RUBBER Install the rl lrnnl r rubbers on the drive plate Apply a small amount of grease to the clutch pivot pins 2 DAMPER RUBBERS Attach t...

Page 107: ...aces Install the oil seals onto the movable driven face Coat the with grease and install them onto the movable driven face 4 5 9 of grease to the inside of the movable driven face Install the movable...

Page 108: ...ck nut to the specified torque TORQUE 50 60 N m 15 0 6 0 kg m 36 43 ft Ib Remove the driven pulley clutch assembly from the tool 2 LOCK NUT WFIENCH mm 07916 9580300 Install the driven pullle fclutC 11...

Page 109: ...FINAL 9 0...

Page 110: ...rla remover 20 mm Remover handle Remover weiah t As emlblv bolt ASl emlbly collar 2 Common Attachment 37 x 40mm Attachment 52 x 55mm Pilot 12mm Pilot 22mm Pilot 25mm Driver TROUBLESHOOTING Engine star...

Page 111: ...INAL REDUCTION INSPECTION Inspect the drive shaft and gear for wear of damage Inspect the for excessive or dalmage If it is necessary to the shaft or drive the drive shaft out of the transmission cove...

Page 112: ...s noisy or has excessive play remove the final shaft bearing a Remover 20 mm 07936 3710001 NOTE The countershaft needle must be re llac ed with the transmission case cover as a set FINAL REDUCTION 21...

Page 113: ...e left crankcase Drive a new final shaft into the left crankcase Install the final shaft oil seal 21 ATTACHMENT 37 x 40 mm 07746 0010200 12 mm 0040200 DIVER 07749 0010000 Drive a new final shaft Drive...

Page 114: ...ountershaft countergear final shaft final gear and thrust washers Install the dowel pins and a new Install the transmission case cover Install the movable driven face clutch Install the drive drive be...

Page 115: ...CLUTCH 90 100 N m 9 0 10 0 kg m 65 72 ft Ibl 10 0 28 32 N m 2 8 3 2 21 24 ft Ibl 8 12 N m 0 8 1 2 6 9 ft Ib OIL PIPE BOLT BLACK 8 12 N m 0 8 1 2 kg m 6 9 ft Ibl OIL PIPE BOLT SILVER 18 22 N m 1 8 2 2...

Page 116: ...er to section 16 for service procedures and information of the starter motor The alternator and starter clutch can be serviced with the engine installed in the frame SPECIFICATIONS TORQUE VALUES Flywh...

Page 117: ...and alternator wire coupler and connectors Remove the 6 mm SH bolts three oil bolts and oil pipe Disconnect the water hose from the right crankcase cover Remove the right crankcase cover attaching bo...

Page 118: ...RISTARTERCLUTCH Hold the flywheel with a flywheel holder and loosen the wheel nut Remove the oil orifice drive NOTE Be careful not to Remove the flywheel with a flywheel puller Remove the woodruff key...

Page 119: ...mage Measure the starter driven gear to SERVICE LIMIT 22 10 mm 0 870 in Inspect the starter idle gear and shaft for wear or damage Install the starter driven gear onto the one way clutch and check for...

Page 120: ...e one way clutch rollers for wear or damage and re place if necessary ASEMBLY the way the one way clutch outer Install the way clutch assembly to the flywheel and tight en with the 6 mm bolts TORQUE 2...

Page 121: ...LLATION Install the oil orifice drive pio ooto the cra oksh lft Make sure that the inside of the flywheel is clean Install the woodruff key into the crankshaft slot Install the flywheel onto the crank...

Page 122: ...cover with the three bolts Install the pulse generator with the two screws Install the wire grommet in its groove in the cover securely NOTE Be sure to route the stator wire under the pulse generator...

Page 123: ...ing washers to the cylinder head side and silver cremkCElISe side black and silver oil bolt Install the black oil bolt to Do NOTE Install the right step and the right side rail page 13 31 Connect the...

Page 124: ...CRANKCASE CRANKSHAFT 11 0...

Page 125: ...ulleys Section 8 Alternator starter driven gear Section 10 Starter motor Section 16 Ifth crankshaft sprocket or timing sprocket need replacement the crankshaft assembly must b replacetl SPECIFICATIONS...

Page 126: ...Remove the cam chain Remove the nine crankcase attaching bolts and heat insulator Place the crankcase with the left crankcase down and remove the right crankcase CAUTION Never pry the crankcase matin...

Page 127: ...for wear or darna ge Replace the oil seal if necessary CRANKSHAFT INSPECTION SERVICE LIMIT 0 6 mm 0 02 int Measure the rod big end radial clearance in two at right angles to the crankshaft MeiElsure...

Page 128: ...he bearings should tumsl 1 l oothly and quietly Also check that the bearing inner race fits tightly on the shaft Replace the crankshaft assembly if the races do not turn smoothly quietly or if they fi...

Page 129: ...he oil pipe into the right crankcase and secure it with the bolt Install the crankshaft into the left crankcase being careful not to damage the oil seal Install the dowel pins and a new gasket Place t...

Page 130: ...KCASE CRANKSHAFT Install the heat insulator and the nine crankcase attaching bolts TORQUE 8 12 N m 0 8 1 2 kg m 6 9 fHbl Install the cam chain cam chain tensioner slipper and secure it with the bolt 1...

Page 131: ...COOLING SYSTEM 12 0 10 14 N m 1 0 1 4 kg m 7 10 ft lbl NOTE ILeft hand threads I...

Page 132: ..._ point Hydrometer test 55 distilled water 45 ethylene glycol 32 C 26 FI 50 distilled water 50 ethylene glycol 37 C 35 F 45 distilled water 55 ethylene glycol 44 5 C 48 FI Coolant capacity Radiator an...

Page 133: ...LIEF PRESSURE 15 105 kPa 0 15 1 05 kg cm2 10 7 14 9 psi 1 RADIATOR TESTER Commercially available in U S A 2 RADIATOR or replace components if the system will not hold the sp ecified pressure for at le...

Page 134: ...with a 50 50 mixture of distilled water and Instal the trim clip through the cover lid and front cover Push the clip into the trim clip securely 4 FRONT COVER 1 PUSH t l 2 l TRIM CLIP SCREW 3 FRONT C...

Page 135: ...e three screws Disconnect the thermoswitch wire Disconnect the upper radiator hose Disconnect the fan motor coupler Disconnect the lower radiator hose Remove the radiator by removing the four bolts In...

Page 136: ...t Remove the fan fan from the fan motor by removing the the shroud by removing the bolts BRACKET REMOVAL INSTALLATION Remove the radiator 12 4 Disconnect the radiator overflow tube from the reserve ta...

Page 137: ...right crankcase mEichanicel seal WATER PUMP REMOVAL Remove the Remove Drain the cOl l n1t Drain the Remove the oil Disconnect the Water pump Kerno e the water pump cover removing the two bolts Remove...

Page 138: ...wire coupler and connector Disconnect the water hose from the right crankcase cover Remove the right crankcase cover gasket and dowel pins Remove the snap ring from the right crankcase cover Remclve...

Page 139: ...weight 07141 0010200 Or 01936 3110200 Drive a new oil seal cover with the marks out Apply surface of a new mechanic Wseal Install the mechanical seal into the cover MECHANICt L SEAL DRIVER ATTACHMENT...

Page 140: ...pump shaft and tighten it TORQUE 10 14 N m 11 0 1 4 kg m 7 10 ft Ib NOTE The imt elllBr has left hand threads Install the dowel pins and new Install the water pump cover with the three bolts Install t...

Page 141: ...tem lpage 12 2 Install the rear cover THERMOSTAT REMOVAL Rel1101 e the rear cover Drain the i nl nf page 12 2 Disconnect thermosensor wire from the sensor Disconnect the water from the thermostat hous...

Page 142: ...ll get a false reading Replace the thermostat if the valve stays open at room tem perature or if it at temperatures other than those specified 1 THERMOSTAT 2 THERMOMETER Technieal Data 1 O RING 2 THER...

Page 143: ...FRAME COVERS II i I ll If f 0 13 0...

Page 144: ...and left rear cover floor panel side rail floor lower cover inner box front upper cover front lower cover and rear carrierI maintenance Frame Cover Removal Sequence REAR CQVEF IREA R PROTECTOR AND LE...

Page 145: ...the reverse order of removal Open the seat and remove the the screws and bolt and left rear cover by re BODY CENTER COVER Remove the battery cover by removing the screw Remove the floor mat Remove the...

Page 146: ...body center cover page 13 2l Remclve the floor panel by removing the four bolts right and left side rail by removing the two bolts each side NOTE The side rails can each side located FRAME COVERS Rem...

Page 147: ...page 13 31 Remove 14 screws and nut Disconnect the fuse holder coupler Remove the screw and lock lever Remove the two remove the parking lock Install NOTE and parking lever holder and from the inner b...

Page 148: ...T UPPER COVER removing the trim Cljj l sc re v removing the two RSlnO le the inner box screwslpage 13 4 loosening the Remove the two upPer bolts Remove the four lower bolts and remove the front upper...

Page 149: ...16 Remove the box page Remove front inner fender the four screws Remove the front protector page 13 5l Remove the two bolts and two screws and slide the front lower cover off Install the front lower...

Page 150: ...0 8 1 2 N m 0 08 0 12 kg m 0 6 0 9 ft Ib 35 45 N m 3 5 4 5 kg m 25 33 ft Ib 85 1 20 150 N m 12 0 15 0 kg m 87 108 ft Ib After 85 130 150 N m 13 0 15 0 kg m 94 108 ft Ib 5 0 7 0 No m 5 0 7 0 kg m 36 51...

Page 151: ...er 85 130 150 N m 13 0 15 0 kg m 94 108 ft lbl 28 32 N m 2 8 3 2 kg m 20 23 ft lb Apply oil 50 70 N m 5 0 7 0 kg m 36 51 ft Ib 24 30 N m 2 4 3 0 kg m 17 22 ft Ibl 35 45 N m 3 5 4 5 kg m 25 33 ft Ib 8...

Page 152: ...icient tire pressure Steers to one side or does not track straight Uneven front shocks Bent front fork Bent front axle Front wheel wobbling Bent rim Axle nut tightened improperly Bent spoke plate Faul...

Page 153: ...con nectors Remove the two screws the right handlebar switch housing and separate the housing Loosen the throttle cable adjuster Disconnect the front brake cable from the brake lever Remove the throt...

Page 154: ...s in the steering stem Apply Honda Bond A or Honda Hand Grip Cement U S A only to the inside the grips and to the clean surfac the left handlebar pipe Wait 3 5 minutes install the grips for even appli...

Page 155: ...screw first then tighten the rear screw Connect the wire coupler and connectors Install the wire band 1 WIRE BAND Install the left handlebar switch housing aligning the pin on the housing with the hol...

Page 156: ...mE asiure the runout using a mm 10 01 in SERVICE LIMIT AXLE SHAFT shaft in V blocks INSPECTION SERVICE LIMITS RADIAL mm 10 08 in AXIAL 2 0 in exceeds the service Replace if the WHEEL RIM Place wheel i...

Page 157: ...other bearing NOTE If the hAJ i are removed they must be re la ed with new ones 1 ATTACHMENT 32 x 35 mm 07746 0010100 PILOT 12 mm 7746 0040200 Do not allow the tilt while driving Drive in with the se...

Page 158: ...Install the spoke Coat the threads the nuts and remove the spoke plate from the the rim nuts with oil and install and 28 32 N m 2 8 3 2 kg m 20 23 ft Ibl INSTALLATION Install the side collar into the...

Page 159: ...RVICE LIMIT 131 0 mm 5 16 in Replace the brake drum if the mElasurElml9nt exceeds the ser vice limit Measure the brake lining thickness SERVICE LIMIT 2 0 mm 0 08 in Replace the brake linings if the th...

Page 160: ...MBLY 11 SPEEDOMETER DRIVE GEAR rn I Ort_1i j J Gl lm 8 12 N m 0 8 1 2 kg m 6 9 ft Ibl 31 BRAKE ARM Apply silicone grease to the brake cam and anchor pin and in stall the brake cam into the brake panel...

Page 161: ...g the wide on the plate with the groove in the brake cam Install the brake arm aligning the punch marks on the brake cam and arm Tighten the brake arm bolt TORQUE 8 12 N m fO 8 1 2kg m 6 9 ft Ibl lubr...

Page 162: ...move the front shock absorber lower nut and screw Remove tM arm mounting nut and bolt from the front fork and remove the arm Remove the front shock absorber upper mounting nut and bolt and remove the...

Page 163: ...an old bearing once a bearing is removed it must be replaced with a new one FRONT SHOCK ABSORBER DISASSEMBLY Compress the shock absorber Loosen the lower clevis lock nut and remove the lower clevis R...

Page 164: ...SORBER PIVOT ARM ASSEMBLY Install the absorber spring with the closely wound coils toward the top COlnpress the absorber with the compressor and attachment Extend the damper rod fully and apply a lock...

Page 165: ...to the cQllars and install into the pivot arm dust felt install the felt seals with the dust collar STEERING FRONT WHEEL BRAKE SUSPENSION 3 ATTACHMENT 24 x 26 mm 07746 0010700 4 PILOT 10 mm 07746 004...

Page 166: ...upper mounting nuts and bolts TORQUE 15 20 N m 11 5 2 0 kg m 11 14 ft Ibl TORQUE 35 45 N m 13 5 4 5 kg m 25 33Jt lbl Install the arm cover and bolt Install the front wheel page 14 8 link arm to the f...

Page 167: ...ear or damage and BALL RACE REPLACEMENT Drive the top ball race out innf ball race remover Drive out the bottom ball race attachment as shown the ball race remover and 1 BALL RACE REMOVER 07946 GA7000...

Page 168: ...race inverted on top of the new race and the bottom cone race for wear or damage and replace Remove cone race dust seal and washer using a punch and the parts Place new washer dust seal and bottom co...

Page 169: ...the top cone race with grease Install and tighten the top cone race TORQUE 2 3 N m 10 2 0 3 kg m 1 4 2 2 ft lbl 85 and after Turn the front fork lock ta Iock 4 5 times to seat the bear Check that the...

Page 170: ...REAR WHEEL BRAKE SUSPENSION 4 vvN m 2 4 3 0 ft Ibl 32 38 N m 3 2 3 8 kg m 23 27 ft Ibl 15 0 80 100 N m 18 0 10 0 kg m 58 72 ft Ibl 3 3 kg m I...

Page 171: ...nut TOOLS 27 33 N m 12 7 3 3 kg m 20 24tt lb I_ _ N m 3 2 3 8 kg m 23 27 ft Ib 38 N m 3 2 3 8 kg m 23 27 ft Ib 80 100 N m 8 0 10 0 kg m 58 72 ft Ib 8 12 N m 0 8 1 2 kg m 8 9 ft lb 2 4 3 0 kg m 17 22 f...

Page 172: ...bolts and reaf mounting bolt in the sequence below TORGUE JOINT NUT 27 33 N m 2 7 3 3 kg m 20 24 ft Ibl REAR MOUNTING BOLT 32 38 N m 13 2 3 8 kg m 23 27 ft Ibl MOUNTING BOLT side firstl 32 38 N m 3 2...

Page 173: ...wingarm Remove and discard the bearing if it does not turn smoothly quietly or if outer race fits loosely in the swingarm BEARING REPLACEMENT Attachment 42 41 mm Remove the out TOOLS Driver from the s...

Page 174: ...uts with oil and install the wheel hub on the wheel rim the flange nuts TORQUE 28 32 N m 2 8 3 2 kg m 20 23 ft Ibl 28 32 N m 2 8 3 2 kg m 20 23 ft Ibl 21 DIRECTION OF ROTATION INSTALLATION Install the...

Page 175: ...NG INSPECTION lining thickness Keep grease off the brake linings Wipe off excess grease Measure the rear DISASSEMBLY Remove the rear cable clamp bolt clamp Remove the brake from the brake arm ren lov...

Page 176: ...ply oil to the feit seal and install it TORQUE 8 12 N m 1 8 1 2 kg m 6 9 ft Ibl Tighten the brake arm bolt wide tooth of the cam the brake cam aligning the punch and brake arm install the brake arm re...

Page 177: ...ook Disconnect the brake cable and switch from the brake arm Remove the brake from the brake arm by removing the bolt and nut Install the brake pedal in the reverse order of removal NOTE Apply grease...

Page 178: ...lock up to the ON position de press the pedal and by aligning the the plate with the one on the cam Tighten lock nut PARKING BRAKE LOCK REMOVAL INSTALLATION Loosen the lock nut and nut and remove the...

Page 179: ...LIMIT A 160 7 mm 6 33 inl B 95 9 mm 13 77 inl free length A 1 1 1 ln r I l III B 5 SPRING ATTACHMENT 07967 VM50100 11 UPPER JOINT 21 LOCK NUT 41 SHOCK ABSORBER COMPRESSOR 07959 3290001 Install the sp...

Page 180: ...0 N m 2 4 3 0 kg m 17 22 ft Ibl Install the right and left rear shock absorbers and tighten the upper and lower mounting bolts and left rear covers page 13 2 Check the of the shock absorbers by using...

Page 181: ...ELECTRICAL EQUIPMENT 16 0 i81 COl UNIT m MAIN FUSE ALTERNATOR 5 IGNITION COIL 11 SPARK PLUG 10l 5TARTER MOTOR SI REGULATOR RECTIFIER...

Page 182: ...ng charging Do not use a non sealed battery as a replacement All charging system components can be checked on the scooter Ignition timing can not be adjusted since the COl Capacitive Discharge Ignitio...

Page 183: ...otor DIGITAL SPEEDOMETER Meter does not indicate properly Dead Burned out fuse Broken or disconnected speedometer cable Poorly connected open or shorted wire Faulty Meter unit Speedometer gear Ignitio...

Page 184: ...ttery Cnnn r t the positive cable to the battery positive 1 terminal charger negative 1 cable to the battery negetive H tAr 1 Charging curtent 1 2A standard Charging time 5 hours standardl Keep an i p...

Page 185: ...eading The ammeter and voltmeter should be 0 A and 14 15 V If the do not meet the specifications check the wires for loose connection and repair if necessary If the wires are good condition replace th...

Page 186: ...ty between each yellow wire and ground Refer to section 10 for stator removal _ _ _ 51 REVERSE DIRECTION 2 RED o J J W M 1 NORMAL DIRECTION continuity Reverse di tE ctiion Normal direction Continuity...

Page 187: ...I 10 IGNITION COIL G IGNITION COIL INSPECTION Remove the left rear cover Disconnect the ignition coil wires Measure the resistance of the primary coil RESiSTANCE 0 16 0 20 0 Disconnect the spark plug...

Page 188: ...ations in the table below NOTE For accurate testing it is necessary to use a specified test er Use of an improper tester or measurements in an im proper range may give false readinl9s Use a Sanwa 0730...

Page 189: ...the battery pOI jth e battery terminal tir iir between the starter relay terminals Remove the starter Connect an ohlurrletE r between the large starter nals Disconnect the battery negative cable from...

Page 190: ...the starter motor case screws and the rear cover Remove the front cover Pull the out of the motor case Remove the brush holder MOTOR INSPECTION Measure the length of each brush SERVICE LIMIT 6 5 mm 0...

Page 191: ...se emery or NOTE Check for continuity between pairs of commutator bars There should be COlnthluitv Also make a continuity check between individual commutator bars and the armature shaft There should b...

Page 192: ...the commutator Slide the commutator I brush holder into the motor case Align the case notch with the brush holder NOTE Be sure the proper number of thrust washers as prE1VicJusly noted have been on t...

Page 193: ...INSTALLATION NOTE Before in tAlllinn the starter motor check the operation co nnl ctJnQ the starter motor wires to the starter relay Install the starter motor in the reverse order of removal INSTRUMEN...

Page 194: ...four screws attaching the instruments Disconnect the right and left turn signal light couplers and remove the upper handlebar cover Remove the two multi coupler mounting bolts and disconnect the speed...

Page 195: ...MENT Remove th e bulb socket to replace the bulb DISASSEMBLY Remove the three lower instruments cover Remove the four screws and trip meter knob then remove the instrument lens Remove the screws and d...

Page 196: ...EQUIPMENT instruments in the reverse order of HEADLIGHT REPLACEMENT Remove the headlight cover Remove the dust headlig1ht nl and clip then the headlight bulb REMOVAlIlNSTALLATION Install the headlight...

Page 197: ...URN SIGNAL LIGHT BULB REPLACEMENT Remove the and left rear covers section 131 Remove the two bolts and rear body cover in order of rerrlovl l to the rear turn signal Remove the and the left light case...

Page 198: ...con tinuity at each terminal Contir1ui1ty should exist be1 wt en the color coded wires indicat ad IG E BlIW G REMOVAL Disconnect the _ switch coupler Remove the two Innlitirm switch mounting bolts and...

Page 199: ...wrr u ad on Discorlnel t the handlebar switch coupler from the multi Rel llO Ve 1the upper hal1idlebar NANDLEBAR SWITCNES FRONT BRAKE SWITCH TURN 1C iN l L jWI W R L Po RPo LPo R v PUSH 0 0 f O IN f I...

Page 200: ...ross the terminals Replace t Je horn If it does not sound with the application of 12 volts FUEL UNIT GAUGE FUEL UNIT INSPECTION 85 Remove the fuel unit page 4 16 85 Measure the resistance between the...

Page 201: ......

Page 202: ...s the pan TEMPERATURE GAUGE Disconnect the wire from the thermosensor and ground it to the engine Turn the ignition switch ON The temperature gauge needle should move all the way to the H right CAUTIO...

Page 203: ...I I I I I I I I I I I I 11 I I I 1 I J FUEL METER Io6ClJGHi IMOJ 5w METEA LIGHT 12V3 w _ METER lI T 11V3 4 _ METER LIGHT 12V3 IW _ METER LIGHT 12V3 4 J L LTIJRN SIGNAL KllCATOA _oI l r __ I ADJUST SW...

Page 204: ...I 1II4 I 1 1 Ib Q 1 I 1 i IO I I I 1 1 I __ J I I l r 1 110 110 IGf lllQN SWllQl 10 M1JO 0 CIE atftttttlr n 11II lIGHT lIV1l11 U 1 I AT LJ I 1 r IT eoo I I fIICIfT STCP Ul iHT SWlT04 TUTU STOP SWITCH...

Page 205: ...TECHNICAL FEATURES 18 0...

Page 206: ...18 2 PLENUM CHAMBER DAMPER UNK TYPE ENGINE MOUNT IGNITION SWITCH LIGHT CARBURE1 OR 18 3 18 4 18 5 The plenum chambier is installed between air and the carburetor to match intake pulsations with all l...

Page 207: ......

Page 208: ...ost vibration free ride 4 SINTERED BUSHINGS OPERATION This mounting system is designed to absorb vibrations in 3 planes up and down front to rear and to side The and down vibrations absorbed the dampe...

Page 209: ......

Page 210: ...become rich and prevents after burn TECHNICAL fEATURES CARBURETOR HEATER 2 AIR CUT OFF VALVE Engine coolant flows through heater and warm up the carbure tor This improvescarburetion and prevents icing...

Page 211: ...l in tank CARBURETOR 2 Clogged fuel tube to carburetor vacuum tube to intake pipe 3 Clogged fuel valve 4 Clogged float valve 5 Clogged fuel tank cap breather hole 6 Clogged fuel filter 7 Clogged fuel...

Page 212: ...Oil level too high 2 Oil level too low 3 Oil not changed CLOGGED Carburetor not serviced frequently enough VALVE TRAIN NOT 1 Clogged oil pipe LUBRICATED PROPERLY 2 Faulty oil pump INCORRECT _ 1 Impro...

Page 213: ...g 2 Faulty COl unit 3 Faulty pulse generator 4 Faulty ignition coil 5 Broken r shorted spark plug wire 6 Faulty ignition switch INI ORRECT Faulty nT rIIT nTT POOR PERFORMANCE AT HIGH SPEED Probable ca...

Page 214: ...starts but scooter does not move _ Worn or slipping drive belt 2 Brokenrampplate 3 Broken drive face spring 4 Separated clutch lining 5 Damaged driven pulley shaft splines 6 Damaged transmission 7 Se...

Page 215: ...stem nut CORRECT 1 Suspension is too soft _ 1 Weak shock spring I 2 Excessive load 3 Shock absorber damper oil leaking 2 Suspension is too hard Bent shock absorber damper rod 3 is noisy _ POOR BRAKE P...

Page 216: ...nected connectors 51 Open circuit POINTER MOVES _10 Fauity float POINTER MOVES _ Open or shorted fuel unit INCORRECT 11 11 Disconnected connector 2 Incorrectly connected connector CORRECT Open or shor...

Page 217: ...Open or shorted starter relay 3 Loose terminals STARTER MOTOR DOES NOT 1 Worn brushes TURN 2 Open or shorted wires of rotor 3 Open starter motor cable 4 Loose terminals Open wire harness MOTOR TURNS S...

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Page 219: ...i i e Emission Control System California Model Only 3 10 Exhaust Muffler 15 2 Final Reduction 9 1 Assembly 9 4 Disassembly 9 2 Inspection 9 2 20 INDEX Float level Inspection 4 10 FloatfFloat level Jet...

Page 220: ...Specifications 1 3 Starter Clutch 10 3 System 16 8 Stator Installation 10 7 Removal 10 2 Steering Head Bearings 3 15 Steering Front Wheel Brake Suspension Suspension i System Testing 12 2 Taillight L...

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