HONDA mom-1 MT 250 OWNER'S MANUAL CONSUMER INFORMATION VEHICLE STOPPING DISTANCE This figure Indicates braking performance that can be met or exceeded by the vehicles to whlcl’l It applies, wlIhoul locking the wheels under dlllerenl con- ditions of loading. The inlurmation presented represents results obtainable by skilled drivers under controlled road and vehicle conditions, and the inlormation may not be correct under other conditions, Description of vehicles to which this table applies: HONDA MT-250 Fully Operational Service Brake Load Light 165 Maximum 171 1 I O 50 100 150 200 Stopping Distance in Fae! from 60 mph. ACCELERATION AND PASSING ABILITY This ligure indicates passing times and distances that can be met or exceeded by the vehicles to which it applies. in the situations diagrammed en the next page. The law-speed pass assumes an Initial speed ml 20 MPH and a limiting speed of 35 MPH. The high-speed pass assumes an initial speed ol 50 MPH and a limiting speed of 80 MPH. NOTICE: The inlarmation presented represents results obtainable by skilled drivers under controlled road and vehicle condilions, and the inter- mation may not be correct under olher conditions. Description oi vehicles in which thls table applles: HONDA MT-25O SUMMARY TABLE: Low-speed pass ..... @ Feet; E Seconds nghrspeed pass ..... 1.312 Feet; 145 Seconds EED LOW- SP INITIAL SPEED : ZOMPH SPEED HIGH LTMITTNG SPEED : 35MPH TOTAL PAssmG DISTANCE FEET TOTAL PASST NG fl ME, SECONDS LIMTTTNG SPEED : wMVH INTTTAL SPEED : SDMPH . TOTAL PASSING DTSTANCE, FEET TOTAL PASSING TIME, SECONDS PREFACE 4,,,,,m,,,,,,,,,,,,,,,,,,,,,,,,/,w,,,,,,,,,,,,,,,,aIIIIIII/II,IWWW/mm,”WWW/Wm,x,m,”WWW/WW. This booklet is your guide to the basic operation and maintenance of your new Honda M11250. Please take the time to read it carefully. As with any fine machine, proper care and maintenance are essential for trouble free operation and optimum performance Your authorized Honda dealer will be glad to provide further information tir nssis. tance and is fully equipped to handle ynnr future service needs. Thank you for selecting a Honda. We wish you many miles of continued riding pleasure in the years ahead. Keep this Owner’s Manual in the tool compartment under the seat. This motorcycle is an ‘operator-only" mode]. CONTENTS W,Mm”,1,wmww(Im/wI,,wM,m,(WWWWIIIIx”WM/mm”,,,II,I,”ll/”lulluauuum SERIAL NUMBER LOCATION CONTROL LOCATION GASOLINE AND OIL Engine Oil Gasoline Transmission Oil Recommendation OPERATING INSTRUCTIONS Main Switch Headlight Dimmer Swnclt Turn Signal Switch Horn Button ..... Instruments and Indicator Lights Seal Lock and Helmet Holder Steering Lock Fuel Valve... From Forks . Rear Shock Absorber, PRE-RIDING INSPECTI 2 TIRE RECOMMENDATION V, PRECAUTIONS BEFORE RIDI STARTING THE ENGINE Starting a Cold Engine Starting a Warm Engin . BREAK- IN PROCEDURE RIDING THE MOTORCYCLE PARKING TOOL KIT . MAINTENANCE SCHEDULE MAINTENANCE OPERATIONS Engine on Level ........ Transmission ()il Level Transmission Oil Change Spark Plug Replacement nn Ignition Timing Adjustment Air Cleaner Maintenance Carburetor Adjustment Throttle Grip Adjustment Oil Pump Cable Adjustment Fuel Filter Maintenance . Clutch Adjustment ..... Drive Chain Maintenance. . Front Brake Adjustment . Rear Brake Adjustment..,, Front Suspension Inspection Front Fork Oil Change,, Rear Suspension Inspection, Rear Suspension Lubrication , Front Wheel Removal ., Rear Wheel Removal Battery Maintenance Headlight Beam Adjustment Stoplight Switch Adjustment . Headlight Replacement ........... Tail/Stoplight Bulb Replacement Decarbonizing .t ,, . TROUBLE SHOOTING SPECIFICATIONS .. WIRING DIAGRAM 56 56 61 62 63 63 4 SERIAL NUMBER LOCATION wmm,I,,,,u,,,,,,,,,,,/,,,,,,,Wm,/,,,,,,,/,/,,/,,,,,,,,,mm””WWW/W The frame serial number ® is stamped Refer to frame and engine serial nunr on the left side of the steering head. hers when ordering replacement pans to The engine serial number (2) is stamped ensure that you will obtain lhe correct on top ol the crankcase at the right rcar parts [or your model series. of the cylinder. These serial numbers are required when registering the motorcycle. ® Frame serial number ® Engine serial number CONTROL LOCATION W”w”,,l,uIuumm”,,,,,,,,flmmmmmm/WW,a,a,mug/”mum”(W/m. (D Speedometer ® Hugh beam indicmor lamp @ Tachometer ® Front brake lever @ Thmme grip ® Hgadlighl switch ® Igninnn switch (3 Rear brake pedal ® Fem pegs @ Clumh 1m; ® Headhgm dimmer switch Turn :ignal swuch (muddle) Horn hulwn (below) @ Fuel tank cap @ Gear change pedal 6 €19 3 Mnin Wm. ® Fug valve @ Gm change Wm :4) Fuel mixture ennchmtnl ‘ever (5) Engine ml tank Cap (under seal) ® Engine 011 1m] mspecrmn winduw :3 5m luck 7 (0 Kick 5mm pedal :3) Transm|snnn oil mm cal) @ Rear brake pedal GASOLINE AND OIL m,,,,,,,,,,,,,,,,,,,,,,,,,,W,WWW,WIIIm,”mam/WWWII”a”i”mm”,”Mum”, DO NOT FEE-MIX GASOLINE AND 01L. FILL THE FUEL TANK WITH GASOLINE ONLYI FILL THE OIL TANK WITH TWO-CYCLE MOTOR OIL. The proper amoum of oil is supplied to the sliding surfaces of crankshaft, right crankshaft bearing. Connecting rod, piston and cylinder wall by an oil pump. Engine Oil Recommended oil Use two-cycle moun- oill Temperature Viscosity Above 53“}? (20°C) 513v???) 20w wF (710%) lo 7. “up (20°C) SAE IDWSO Below 14°F (»IU°C) SAE 5w. 10w NOTE : If two-cycle motor oil is not available, use other premium quality motor oil of the recommended viscosityi Filling the ml tank The oil tank is localed at the lefl CcnlL‘r of an mmorcycle. Placclhc motorcycle in (hr upright position, and check all level at xhe inspecuon wmdow (D a lnspeckion window 10 If it is bulow (he lop of (he lnspucr lion window, remove the oil tank Cap ® and fill the lank will-l all, When the oil level is at the top of the \nspecuon wl|1dow,lhere is approximalely 0.25 US. qt. {0.24 Z) of all m the tank NOTE : When filling, take care not to allow foreign materials to enter the tank. m‘ (3 on lank rap Gasoline Fuel tank capacity is 2.2 US. gall (8.5l) including 0.4 US. gal. (1.5 2 ) in reserve. Use of low-lead gasoline with a 91 octane rating or higher is recommended. 1i low-lead gasoline is not available, you may use a leaded regular grade gasoline. When relueling take care to exclude din, water, or other comaminams from the fuel tank. WARNING : Gasoline is flammable, and explosive under certain conditions Always stop the engine and do not smoke or Illow open flame! or splrks near the motor- cycle when refueling. (9 Fuel tank Cap ll [—, Transmission Oil Recommendation Use only high detergent, premium quality motor oil. The regular use of special oil additives is unnecessary and will only increase oper- ating expenses. Transmission oil should be changed at the intervals prescribed in the mainte- nance schedule on page 31, NOTE: Non-detergent and low quality oils are specifically not recommended, 12 Viscosity Viscosity selection should be based on the average atmospheric temperature in your riding area. Change to the proper viscosity oil whenever the changes in average atmospheric temperature require it. Recommended oil viscosity: General» all temperatures SAE low-30 or SAE low-4o Alternate: Above 55”F (15°C) SAE 30 32" (0°) m 59°F (15‘C) SAEZOor 20W Below SAE 10W OPERATING INSTRUCTIONS om”fla,flmy,mm”WWW/(WWWWmywww,,/,,,,,,,/,,,,,,mm Main Switch The main switch ® is located on the left side under the forward and of the fuel tank. ® Main swirch Key Removal Key position Function All electric Circuiis arc open: engine OFF 1 mm be started Key can be rumovud a 151mm circuits are completed, 1mm Kcy Cannot be m 01" (”4 d0” wm operat: and engine can be started, mowed. 13 Ignition Switch The ignition switch (D is located on the brake lever mount, next to the headlight switch. With the main switch in the “ ON " position and the ignition switch in the center “RUN" position, the ignition cirr cuit is complete, and the engine will operate. The ignition switch may he turned in either direction to “OFF" position which opens the ignitinn circuit and stops the engine, This switch is provided as an emergency safety device, and as a convenience, to stop the engine before reaching for the main switch key. The ignition switch is normally left in the “RUN" position and should be reset to the “RUN” position after use. When the motorcycle is parked, turn the main switch to the “OFF" position 14- Headlight Switch The headlight switch ® is located at the right handlebar grip. Move the switch up to turn the headlight and taillight on, and down to tum lights OH. The headlight switch will close the light circuit only when the main switch is in the “ON" position, and the headlight will be lit only when the engine is running. a) Ignition switch (2) Headlight switch Headlight Dimmer Switch The headlight dimmer switch ® is located on the left handlebar grip switch housr lug. Move the headlight switch ® to the “ON" position (see page 14). then move the dimmer switch up to select high beam or down to select low beam. Turn Signal Switch The turn signal switch ® is located on the left handlebar grip switch housing. It can be operated without taking the hand off the handle grip. To signal a left turn move the switch to the “L” position To signal a right turn move the switch to the “R" position, \Vhen the turn has been completed the swnch must be re turned to the center “OFF" position Horn Button The horn button @ is located on the left handlebar grip switch housing. When the horn button is depressed the ham will operate. (g Headlight dirnmer switch @ Turn signal switch @ Horn button 15 Instruments and Indicator Lights CD Speedommer @ Tachometer ® Odomcrar (3 Turn signal mdmamr ham @ Tripmeler Tnchomemr red zone (4) mgh beam Indicator hghz 3; Trip-meter met knob @ Neutral \ndicamr light 16 Reta No. Description Function 1 Speedometer Indicates driving speed. 2 Odometer Indicates total accumulated distance traveled. 3 Tri meter Indicates distance traveled per trip, 9 (meter can be reset for each trip) 4 High beam indicae Light will be on when headlight is on high tor light (blue) beam, 5 Neutral indicator Light will be on when the transmission is in light (green) neutral. 6 Tachometer Indicates engine rpm, 7 Turn signal indica- Light will flash when either turn signal light is tor light (amber) operating. During acceleration, engine RPM indicator T h ‘ cl needle may be allowed to briefly enter the red 8 ac 0"” 8‘ ‘3 zone. However, the motorcycle must not be zone operated in the red zone for any length of time and must NEVER be operated beyond it. 17 Seal Lock and Helmet Holder The seat lock ® is located on the lower left side of the seat. Insert the main switch key, and turn it counterclockwise 90° to unlock and open the seat, The helmet holder ® is located under the seat Open the seat, hang the “D” ring of the helmet on the hook, and lock the seat. ® He met holder a) start lock 1 8 Steering Lock The steering lock (D |S located on the steering stem directly below the headlight case. Turn the handlebar all the way to the steering slap» either to the left or right, insert the key into the lock, turn the key 60° to the left and press in, turn the key back to the original position and remove the key This locks the steering to help prevent theft. (9 Steering luck Fuel Valve The fuel valve (D is mounted under the left side of the fuel tank “STOP" posfln} When the fuel valve is turned to the “STOP" position, fuel cannot flow from the fuel tank to the carburetor. Set the valve in this position whenever the motor. cycle is not in uses V mess RESERVE - (D Fuel valve “ON" position When the fuel valve is turned to the "ON” position, fuel will flow from the main fuel supply to the carburetor Set the valve in this pusitiou when the engine is to be operated from the main fuel supply. “RES” position When the fuel valve is turned to the “RES” pusitiou, fuel will flow from the reserve fuel supply to the carburetor. The fuel valve should be set in this posie lion only after the main fuel supply has been consumed. The reserve fuel supply is 0.4 US. gal. (1.5 Z ). When it becomes necessary to switch to the reserve fuel supply, this serves as a warning to the rider thar it is time to refill the fuel tank, After refueling return the valve to the “ON" position, 19 Front Forks Front fork height can be adjusted to change the handling characteristics of the motorcycle. The upper part of each fork tube is marked in 0.197 in. (5 mm] graduatious that are referenced to the surface of the upper fork bridge to indi- cate fork height settings. To adjust front fork height, loosen the clamp bolts on the upper and lower fork bridges, and raise or lower the forks to the desired setting. Be certain that both fork tubes are set at equal height, Retighten the clamp bolts after fork height adjustment. For low speed riding, where quick steer. mg response .5 needed, move the forks upward through the fork bridge, toward setting 1. To increase stability for high speed rid- mg. move the forks downward through the fork bridge, toward setting In. Front fork height will also be determined by the rider‘s ability and personal pref erence, CAUTION: Five groove marks are provided on the upper part of each front fork pipe. Never use the lower two grooves for setting. 3. ® Clamp bo||s Rear Shock Absorber The rear shock absorbers (D have five settings to compensate for differences in rider weight and riding conditions. Posir tion (111) is the standard setting, AdJuSlmeul is performed by using the pin wrench ® contained in the tool kit. Turning the adjuster ® in direction (9 softens the rear suspension, turning it in direction ® stiflens the rear suspension. Be certain to adjust both right and left shock absorbers to identical positions. (3 Rear shock absorber (3 Pin wrench @ Adjuster 21 PRE-RIDING INSPECTION fl,,,,,vM,,mmWWW/mumr,/,orovomvoovomma,vaWWW/om”, At the start of each riding day, per- form a general inspection to be certain the motorcycle is in good, safe operat- ing condition. "his inspection will require only a few minutes and can save you much time and expense in the long run. Check the fol lowing items and adjust or service it necessary Refer to the appropriate sec tion of this manual for detailed maimee nsnce instructions. I. ENGINE OIL LEVELiCheck oil level and add oil if necessary (page 33) 2. FUEL—Check fuel level and fill tank if low (page II). 3' TRANSMISSION OIL LEVEL 7 Check all level and add all If neces sary (pages 34~36). 4. BRAKES—Check operation of Iront and rear brakes. Adjust free play if necessary (pages 51~53l. 22 5. TIRE PRESSURE—Check with a tire pressure gauge, and inflate to recomr mended pressure. . DRIVE CHAIN7Check condition of chain and measure chain slacle Ad. just if drive chain slack is incorrect. Lubricate if drive chain appears dry. Replace it drive chain is badly worn or damaged (pages 47~51). . THROTTLEicheck throttle operas tion in all steering positions, Adjust if free play is incorrect Replace or correct cable renting it throttle does not operate freely in all steering positions (pages 42~44). V LIGHTING EQUIPMENT’CheCk headlight, tum signals and tail/stop- light. Replace any bulb which fails to operate (pages 62~63). . FRONT AND REAR SUSPENSION iCheck operation (pages 5445). TIRE RECOMMENDATION w,lr//,,,,m,,,,,,,,,,r”WW”,[WWW1”W,”a,lmmwwwwmwwm, OOH/onethe-mad tires are standard on this modelv Select the proper tires in accordance with the following specifi- cations: Bridge- TRAIL WING 5A The slone TRAIL WING 5A Brand , - NTJOZB NM NT7102B . . .0041 Tire size 4.00713 Tire Infleiiun . 21 psi(1.5kg/Cm2) iplessurficold) : 21psi-‘ mutant—t l>tpNH . Loose spark plug. . Loose cylinder head, Retighten, Relighlen. 65 2. Engine does not develop suflkient power or overheats. Cause Remedy 1. Incorrect ignition liming. Adjust. 2. Clogged air cleaner etemem. clean, 3. Carbon deposits in muffler, Decal-hon, cylinder head or on piston crown 4. Clcgged cylinder fins, Clean, SPECIFICATIONS w,a,aWM,wm”,ma,,,,,,,,,,,/,,,Wm(WWW/WW”Ml/WW”I,I,u”(WW/”mum, ITEM DIMENSIONS Overall length 2,160 mm (3511111.) Overall width 890 mm (35.0111) Overall heighl 1,130 mm (44.5111) Wheel base 1,440 mm (56.7in.) WEIGHT Dry weight 118113 (260 lbs) CAPACITIES Engine oil 1.31 (1.4 US qt.) Transmission oil 1.01 (1.0 us qt.) Fuel (ank 8,5! (22 us gal.) Fuel Ieserve tank 151 (0.4 US gal.) Front onk 145 cc (4.9 025.) 67 ENGINE Bore and stroke Compression ratio Displacement Contact breaker point gap 5pm plug gap 70.0 x 64.4 mm (2751; >< 253511;.) 9.0 : 1 248 cc (15.1 cum.) 0.2~0.6 mm (01008~o.024 inv) 0.e~o.7 mm (0.024~o.ozs m) CHASSIS AND SUSPENSION Caster Trail Tire size, front Tire size, rear 595° 143 mm (5.6 in.) 3.00721 (4 PR), 21 psi 4.00718 (4 PR), 21 psi 68 POWER TRANSMISSION Primary reduction 3.300 Final reduction 2933 Gear mic, 15:. 2.235 2nd. 1.571 3rd. 1.160 4th. 0.896 5th. 0718 ELECTRICAL Battery 6V»6AH Generator A.C. Generator F use 10 amp. 69 LIGHTS Headlight Tail/Stoplight Turn Signal light Meter lights Neutral indicator lighi High beam indicator light Turn signal indicator light 6v—35/25W sv-s/sch ev721 op SAE TRADE Nov 1129 SVTI cp SAE TRADE No. 51 6v-2cp SAE TRADE No. 55 ev71 cp SAE TRADE No. 51 6V—1cp SAE TRADE No. 51 70 MEMO 71 72 MEMO 33:5 ( 06 E. . a... x u a a 2 i A 3.5%.. :32: . A .. E: .3 ii 5:: is 5E :83. 5.3... . x x 2.; a is :9 as S 3.: ,r :2 :5 L._ is E. :3 .5 in: 55:. 4+; .33 is; r . w 3 g E. 53:. .3. E. :2 as .5355 :53. >3 3: :22. , =52: / E i as. E; g; E: 5:3. in 5 v xs§§5.=: 355.335: 55 a: 3. E<¢0