Yamaha TT500C 1976, Owner'S Manual

Page 1: ... YAMAHA TTSOO OWNER S MANUAL 1 1 1 1 _ 583 28199 101 1 __ ____ _j ...

Page 2: ...t you with severa features and maintenance procedures concerning your Yamaha However if you are unfamiliar with the product or the features or procedures outli ed within this manual we strongly urge you to consult your Authorized Yamaha Dea ler for additional information TT 500 C OWNER S MANUAL FIRST EDITION AUGUST 1975 Ali Rights Reserved by Yamaha Motor Comj1any Limited Japan Printed in Japan LI...

Page 3: ...championship competition models This Owner s Manual is included to provide basic information for operation and maintenance Additional information regarding major repairs can be found within the TT 500 C Service Manual and various other information and training manuals available from your Authorized Yamaha Dealer YAMAHA MOTOR CO LTD SERVICE DEPARTMENT INTERNATIONAL DIVISION IWATA JAPAN ...

Page 4: ...S 2 NOMENCLATURE 4 SPECIFICATION 5 MACHINE IDENTIFICATION 8 CONTROL FUNCTIONS 9 PRE OPERATION CHECKS 14 OPERATION 16 PERIODIC MAINTENANCE AND MINOR REPAIR 20 CLEANING AND STORAGE 72 MI SCELLANEOUS 75 CIRCUIT DIAGRAM 78 ...

Page 5: ... is not agitated by the crankshaft Furthermore the oil does not deteriorate as quickly as it does in ether systems To make the machine width smaller the oil tank is built in the frame ln addition the ground clearance is made higher by the use of the dry sump system 5 speed transmission With 5 speeds power is delivered efficiently to the rear wheel providing excellent perfor mance for ali operating...

Page 6: ...bsorber is filled with a high pressure gas lt should be handled with speci l care For details refer to Rear Shock Absorber on page 63 Lighting equipment As options headlight taillight light switch and wire harness are available A lighting coil is mounted in the machine For details see your Yamaha dealer 3 ...

Page 7: ...er 7 Front number plate 1 Full petcock 2 Seat 8 Exhaust pipe 2 Carburetor 3 Right side cover Number plate 9 Oil fi ter cover 3 Drive chain 4 Fuel tank 10 Rear brake pedal 4 Side stand 5 Fuel tank cap 11 Kick pedal 5 Shift lever 6 Engine oil tank cap 12 Foot rest 4 ...

Page 8: ...th Overall height Wheelbase Model Minimum road clearance Net weight Minimum turning radius Engine Type Engine model Cylinder Displacement tian concerning this manual consult your nearby Yamaha dealer TT500C 2 110 mm 83 1 ins 935 mm 36 8 ins 1 120mm 44 1 ins 1 420 mm 55 9 ins 215 mm 8 5 ins 119 kgs 262 lbs 2 100 mm 82 7 ins 4 stroke single over head cam gasoline 583 Single cylinder 499 cc 30 4 cu i...

Page 9: ... 2 1 US qt Lubricating system Dry sump Spark plug BP7ES NGK Carburetor VM34SS MIKUNI Air cleaner Oiled foam rubber Tra smission Primary reduction system Gear Primary reduction ratio 2 566 77 30 Secondary reduction system Chain Secondary reduction ratio 3 466 52 15 Clutch Wet multi disc type Gear box type Constant mesh 5 speed forward Operation system Left foot operat ion Gear ratio First 2 357 33 ...

Page 10: ...ng Caster 59 50 Trail 134 mm 5 28 ins Tire size Front 3 00 21 4PR Rear 4 60 18 4PR Suspension Front Telescopic fork Rear Swing arm Shock absorber Front Coil spring oil damper Rear Coil spring nitrogen oil damper Frame Semi double cradle 7 ...

Page 11: ...riai number is stamped into the elevated part of the right rear section of the engine NOTE The first three digits of these numbers are for mode identifications the remaining digits are the unit production number The two seriai numbers are usually identical but they may sometimes be 2 or 3 numbers apart 1 Frame number 1 Engine number 8 ...

Page 12: ...ock The fuel tank incorporates a threaded plastic tiller cap The fuel petcock is located on the rear left side of the fuel tank Turn the petcock lever to the vertical position and fuel will flow to the carbu retor Turn lever to the horizontal position to shut off fuel supply to the car buretor 9 1 Engine stop button r 1 Fuel tank cap 2 Petcock ...

Page 13: ...ght side of the motorcycle and activates the rear brake through a link rod Decompression lever When this lever is squeezed the exhaust valve is forced open so the compression pressure can be reduced This allows you to move the piston just past the compression stroke before kick starting See page 17 for proper operating procedure 1 Brake lever 2 Brake pedal 1 Decompression lever 10 ...

Page 14: ...gine NOTE When starting the engine use the decompression lever Clutch lever The clutch lever is located on the left handlebar and disengages or engages the clutch Pivot the clutch lever toward the handlebar to disengage the clutch and release the lever to engage the clutch The lever should be pulled rapidly and released slowly for smooth starts 11 CD 1 Clutch lever ...

Page 15: ... mixture Push the lever down to open the circuit for starting and pull it up to close the circuit Shift lever The transmission shift lever is located on the lefthand side of the machine directly in front of the rider s foot rest The shift mechanism is of the ratcheting type and controls gear selection for the 5 speed transmission 1 Starter lever Choke lever 1 Shift lever 12 ...

Page 16: ...Rear shock absorber The rear suspension should be adjusted to fit the load speed and raad conditions Turn it to change the spring rate Soft A 2 5 positions Stiff E 13 ...

Page 17: ...g After break in check color cond n 33 Throttle Check for proper throttle cable operation 32 54 Decompression lever Check for proper cable free play 15 Air filter Foam type must be clean and damp w oil always 49 51 Wheels and tires Check pressure runout spoke tightness axle nuts 67 69 Fittings fasteners Check ali tighten as necessary NOTE Pre operation checks should be made each time the machine i...

Page 18: ...S qt 15 Brake lever and brake pedal Check for correct play in the brake lever and pedal and make sure they are working properly Check the brakes at low speed shortly after starting out Clutch lever Check for correct play in the clutch lever and make sure the lever operates properly Throttle grip Turn the throttle grip to see if it operates properly and if the play is normal Make certain the thrott...

Page 19: ... the decompression lever is not followed the engine could kick back causing injury to the rider 1 Turn the fuel petcock ta ON 2 Open the carburetor starter jet choke by pushing dawn on the lever and com pletely close the throttle grip WARNING This model is designed for off road use only lt is not equipped with U S Government approved lighting mirrors horn or directional signais ln most instances i...

Page 20: ... pedal is felt the engine is on the compression stroke 4 Squeeze the decompression lever and depress the kick pedal slowly to the position shawn in the figure This ad vances the engine just beyond the com pression stroke 5 Release the decompression lever and allow the kick pedal to return to its home position 17 ...

Page 21: ...t time Warming up To get maximum engine lite always warm up the engine before starting off Never accelerate hard with a cold engine To see whether or not the engine is warm see if it responds to throttle normally with the starter jet choke turned off Shifting and acceleration This model has a 5 speed transmission The transmission allows you to control the amount of power you have available at a gi...

Page 22: ...id operation above half throttle 2 250 500 km 150 300 miles Avoid operation above 3 4 throttle 3 500 km 300 miles and beyond Full throttle operation is allowed but unnecessary full throttle operation should be avoided After 500 km 300 miles operation be sure to replace the engine ail and ail fi lter element and clean the ail 19 strainers See page 39 CAUTION If any engine trouble should occur durin...

Page 23: ... following sections provide information for the disassembly troubleshooting and maintenance of various components of the motorcycle If you do not have the necessary tools and an understanding of the mechanical principles involved please refrain from attempting repairs The use of improper tools and or procedures can cause major damage to the unit with resultant additional repair costs 20 ...

Page 24: ...operly tighten nuts and bolts NOTE A 27 mm Box end wrench is required to remove the oil strainer See page 39 PERIODIC MAINTENANCE l 1 Tool bag 2 Socket wrench 12 mmx21 mm 3 Point wrench 5 5 mm x 7 mm 4 Thickness gauge 0 10 mm 0 15 mm 5 Allen wrench 5 mm 6 Offset wrench 22 mm 7 Spoke wrench 8 Valve adjust wrench The most important points of motorcycle inspection adjustment and lubrication are expla...

Page 25: ...6 000 km As 300 miles 2 000 miles 4 000 miles required ENGINE 35 41 Change engine oil x 1 x 35 41 Change oil filter x x 35 41 Clean oil strainer x x 43 46 Adjust valve x x x 42 43 Adjust cam chain x x Check compression x x x Check cylinder head boit torque x x 28 30 Adjust clutch x x x 30 32 Check and adjust carburetor x x x Clean carburetor x lnspect exhaust system x x x Check flywheel nut torque...

Page 26: ...ont and rear x x x 28 Check front fork x x 60 63 Change fork oil x 4 x 4 63 66 Check rear shock absorber x x Check swing arm x x x Check and adjust controls and cables x x 53 54 Lubricate cables x 2 x 2 x 2 55 Check steering head x x Lubricate swing arm pivot x 3 x 3 68 69 Check rim runout x x x Check spoke tension x x x Check wheel bearing x x 52 53 Check drive chain tension and alignment x x x 5...

Page 27: ...connection x x x 33 Check spark plug x x x Replace spark plug x Maintenance and lubrication schedule chart notes No 1 No 2 At ambient temperature above 15 C 59 F use YAMALU BE 4 cycl e ail or SAE 20W 40 type SE motor ail At ambient temperature below 15 C 59 F use SAE 1OW 30 type SE motor ail Do not use additives in ail Use SAE 1OW 30 type SE motor ail If desired specialty lubricants of quality ma ...

Page 28: ...cifications for components with thread pitches other than standard are given within the applicable chapter Torque specifications cali for dry clean threads Co ponents such as the cylinder or cylinder head should be at room temperature prior to torquing A cylinder head or any other item with severa fasteners should be torqued down in a crisscross pattern in successive stages until torque specificat...

Page 29: ... 7 2 85 12 mm 8mm 2 0 15 175 14 mm 10 mm 3 5 4 0 25 29 300 350 17 mm 12 mm 4 0 4 5 29 33 350 400 19 mm 14mm 4 5 5 0 33 36 400 440 22 mm 16 mm 5 8 7 0 42 50 500 600 24mm 18 mm 5 8 7 0 42 50 500 600 27 mm 20mm 7 0 8 3 50 60 600 700 SPARK PLUG 2 5 3 0 18 22 220 260 ooo 26 ...

Page 30: ...y at the brake lever pivot point Adjustment is accomplished at one of two places either the handle lever holder or the front brake hub 1 Loosen the adjuster locknut 2 Turn the cable length adjuster in or out until adjustment is suitable 3 Tighten the adjuster locknut 27 a 5 8 mm 0 2 0 3 in 1 Adjuster 2 Adjuster locknut ...

Page 31: ...adjusted or rear wheel is removed and then reinstalled Clutch adjustment This madel has two clutch cable length ad justers and a clutch mechanism adjuster Cable length adjusters are used to take up slack from cable stretch and to provide suf ficient free play for proper clutch operation under various operating conditions The clutch mechanism adjuster is used to provide the correct amount of clutch...

Page 32: ...ither in or out until proper lever free play is achiev ed see illustration Mechanism adjustment Remove rear lefthand crankcase cover Note position of clutch axle lever Loosen adjust screw locknut and fully tighten eccentric adjust screw Next turn either cable length adjuster in or out until lever is positioned slightly forward of main axle center line Then back eccentric adjust screw out until axl...

Page 33: ...ld be left to a Yamaha dealer who has the professional knowledge and experience to do so However the following three points may be serviced by the owner as part of his usual maintenance routine 1 ldle mixture adjustment 2 ldling speed adjustment 3 Throttle cable play adjustment NOTE The carburetor was set at the Yamaha factory after many tests If the settings are disturbed without having technical...

Page 34: ... rpm d Turn the pilot screw in or out until speed is at highest rpm e Turn the idle speed adjust screw in or out until idle speed is at desired rpm NOTE Pilot screw and idle speed adjust screws should be adjusted so that engine responds from idle position without hesitation PILOT SCREW Back out 1 1 4 turns IOLE SPEED As desired 31 1 Pilot screw 2 ldle speed adjust screw ...

Page 35: ...a Loosen the adjuster lock nut on the car buretor side of throttle cable 1 and turn the adjuster in and out so the play is correct After the adjustment be sure to tighten the locknut b If the play is still incorrect after the ad juster is loosened 5 mm 0 20 in remove the rubber cap on the throttle grip side and make an adjustment with the adjuster on the grip side 1 Adjuster locknut 2 Adjuster 3 T...

Page 36: ... quired Remember the insulator area surrounding the positive electrode of the spark plug must be a medium tan color If it is not check car buretion timing and ignition adjustments The spark plug must be removed and check 33 ed Check electrode wear insulator color and electrode gap Spark Plug Gap 0 7 0 8 mm 0 028 0 031 in Engine heat and combustion chamber deposits will cause any spark plug to slow...

Page 37: ...ion and clutch by means of the feed pump after lubricating is over the oil is fed back to the oil tank by means of the scavenging pump Therefore the oil leve can be checked at the oil tank The engine oil tank is built in the frame and the oil tiller cap is located between the fuel tank and steering head pipe 34 ...

Page 38: ...eck the oil leve NOTE When checking do not screw the oil leve gauge into the oil tank lnsert the gauge lightly For accuracy check with the machine held upright c If the oil leve is between the maximum leve ines marked on the oil leve gauge you may start the engine 35 1 Oil tiller cap L _ Maximum oil level y Minimum oil level 1 1 ...

Page 39: ...tween the maximum and minimum level lines Engine oil and oil filter replacement CAUTION When the oil tank is empty be sure to add oil before starting the engine WARNING Never attempt to remove the oil tank filler cap just after high speed operation The heated oil could spout out causing danger Wait until the oil cools down to approximately 50 C 122 F 36 1 Oil filter replacement NOTE When replacing...

Page 40: ...a Start the engine After a few minutes of warm up stop the engine b Remove the engine under guard and place an oil receiver under the engine 37 1 Under guard ...

Page 41: ...eder screw attached to the ail filter caver and drain the engine ail NOTE The ail filter caver is secured by three screws The lower one should be loosened until the threaded portion cames out completely 1 Drain plug 2 Drain plug 3 Air bleeder screw 4 Filter cover screw 38 ...

Page 42: ...r screen Remove the oil strainer at the bottom of the engine and clean 1 Filter screen e Remove the oil filter cap and lace the filter element f Gheck each gasket If damaged replace g lnstall the drain bolts air bleeder screw oil filter oil pipes and engine under guard 39 1 Filter element 2 0 ring ...

Page 43: ...paragraph 1 of Engine oil CAUTION After replacement of engine oil be sure to check the oil pressure in the following procedure 1 Remove the air bleeder screw from oil filter cover 2 Start the engine and keep it idle running till oil flows out of the bleeder hole If no oil cornes out even after a lapse of over one minute eut the engine immediately for fear of seizure ln such a case go to the neares...

Page 44: ...e screws The lower one should be loosened until the threaded portion cames out completely d Check each gasket If damaged replace e lnstall the drain bolts at two places and the bleed screw f Add 2 0 liters 2 1 US qt of engine ail lnstall the ail tank filler cap and tighten 41 g Start the engine and allow a few mi nutes of warm up While warming up check for ail leakage If ail leaks stop the engine ...

Page 45: ...e timing mark on the crankcase at the compression stroke 3 Remove the adjuster ca p 4 Loosen the adjuster locknut 5 Turn the adjuster in until the push rod inside the adjuster is flush with the end of the adjuster NOTE Start the engine While keeping it idling check the movement of the push rod If it moves slightly the adjustment is correct If it does not move at ali the adjuster is tightened too m...

Page 46: ...nut 7 lnstail the adjuster cap and the left crankcase caver Valve clearance adjustment 1 Remave the balts 2 securing the seat ta the frame remave the seat 2 Turn the fuel petcack ta OFF and discannect the fuel pipe and air breather pipe 43 1 1 Fuel pipe 2 Air breather pipe ...

Page 47: ...3 Remove the bolts 3 securing the fuel tank to the frame and remove the fuel tank 4 Remove intake and xhaust tappet covers and left crankcase cover 1 lntake tappet cover 2 Exhaust tappet cover 44 ...

Page 48: ...ead center and the valve clearance should be checked and adjusted at the T D C of compression stroke This can be noted by observing when the valve adjusters have clearance 6 Use a feeler gauge to determine the existing clearance EXHAUST VALVE 0 15 mm 0 0059 in INTAKE VALVE 0 10 mm 0 0039 in 45 1 Feeler gauge ...

Page 49: ...ng and thoroughly tighten the lock nut Recheck the clearance after tightening NOTE Valve clearance check and adjustment should be done when the engine is cold 8 lnstall the intake and exhaust tappet covers and left crankcase caver 9 lnstall the fuel tank and seat 1O Connect the pipes 1 Adjuster locknut 2 Adjuster 3 Valve adjust wrench 46 ...

Page 50: ...iming mark on the crankcase The ignition points should open as the crank shaft passes this point 2 Remove contact point caver and con nect a Yamaha point checker or an ohmmeter Q x 1 scale as shawn 47 1 Contact breaker points 2 Base plate POINT CHECKE I D c0 CFF 3 Base plate set screw 4 Condenser __ ...

Page 51: ...re just breaking contact needle will move from zero slightly Tighten base plate set screws 4 Check setting by turning flywheel backward points will close and the tu rn in the direction of normal rotation The points should open as the F mark passes crankcase mark 5 Repeat steps 1 4 until the contact points open at the proper time 48 ...

Page 52: ...Air filter 1 Remove the right number plate 2 Remove the screws from the filter case caver and remove the caver 3 Remove the filter element from the filter case 49 ...

Page 53: ...lvent out of the element and let dry 7 Pour a small quantity of 30W motor ail onto the filter element and work tho roughly into the porous foam material NOTE In arder to function properly the element must be damp with ail at ali time but not dripping with ail 8 Re insert the wire mesh guide into the element 50 ...

Page 54: ...dges of the filter with all purpose grease for an air tight seal between the filter case cover and filter seat 1 O lnstall the filter element into the filter case 11 lnstall the case cover and right number plate 51 ...

Page 55: ...tension adjustment 1 Loosen the rear brake adjust nut 2 Loosen the rear wheel axle nut 3 Loosen the adjust boit locknuts on each side To tighten chain turn chain puller adjust bolts clockwise To loosen chain turn adjust bolts counterclockwise and push wheel forward Turn each boit exactly the same amount to maintain correct axle alignment There are marks on each side of rear arm and on each chain p...

Page 56: ...ecially necessary when driving in dusty conditions 1 First remove dirt and mud from the chain with a brush or cloth and then 53 spray the lubricant between both rows of side plates and on ali center rollers 2 To clean the entire chain first remove the chain from the motorcycle dip it in solvent and clean out as much dirt as possible Then take the chain out of the solvent and dry it 1mmediately lub...

Page 57: ...Two screws clamp the throttle housing to the handlebar Once these two are removed the ends of the cables can be held high to pour in severa drops of lubricant With the throttle grip disassembled coat the metal surfaces of the grip assembly with a suitable all purpose grease to eut down friction Lubrication of levers pedals etc 54 1 Lubricate the pivoting parts of the decomp brake and clutch levers...

Page 58: ...er end of the front fork and try to move forward and backward If any free play can be felt ask a Yamaha dealer to inspect and adjust Inspection is easier if the front wheel is removed Front wheel removal 1 Remove brake cable Loosen ali cable adjust screws and remove cable from handle lever holder 2 Remove cotter pin from front wheel axle and remove axle nut 3 Loosen axle holder nuts at other end o...

Page 59: ...on When installing front wheel reverse the removal procedure taking care of the fol lowing points 1 Check for proper engagement of the boss on the outer fork tube with the locating slot on the brake shoe plate 2 Always secure the front wheel axle as follows a Torque the axle nut Axle nut torque 7 0 10 0 m kg 50 6 72 3 ft lb b lnstall a new cotter pin discard old pin 56 ...

Page 60: ...e brake rod from the brake shoe plate The tension bar can be removed by removing the cotter pin and nut from the tension bar boit The brake rod can be removed by removing the adjust nut 2 Loosen the fock nuts of the right and left chain pullers and loosen the adjust bolts 3 Remove the master link clip and master link and remove the chain from the rear sprocket 4 Remove the rear wheel axle nut 57 1...

Page 61: ...ting the chain make certain closed end of master link clip is facing direction of rotation 2 Be sure to adjust the tension of the chain Adjust with both wheels on the ground and with rider on the seat The chain deflection at the center between drive sprocket and rear sprocket should be adjusted to 25 mm 1 in 3 Position the chain pullers at corresponding marks on the rear arms to maintain rear axle...

Page 62: ...o the brake plate Then apply an even coating of chalk to the inner surface of the brake drum lnstall brake shoe plate operate cam lever by hand and rotate shoe plate through one revolution Remove shoe plate and check for areas of no contact Use coarse sandpaper to sand off lining material at the high spots until at east two thirds of each shoe touches drum 59 Front 126 mm 4 96 in a Wear limit Rear...

Page 63: ... noise may occur and brake performance will suffer Check the inner surface of the brake drum and remove any scratches with emery cloth Remove any oil with a cloth dipped in solvent If damage is more extensive have a Yamaha dealer replace the wheel hub Front fork oil change 1 Elevate front wheel by placing a suitable stand under the engine 2 Remove cap bolts from inner fork tubes 1 Cap boit 60 ...

Page 64: ...each outer tabe with open container under each drain hale 4 After most of ail has drained slowly raise and lower outer tubes to pump out remaining ail 5 Replace drain screws NOTE Check gasket replace il damaged 61 1 Drain screw ...

Page 65: ... the weight oil that suits local conditions and ymir perference lighter for less damping heavier for more Çfàmping v r 7 After filling slowly pump the outer tubes up and down to distribute the oil NOTE Adjust the oil levels in both right and left front forks so they are even 62 ...

Page 66: ...ber WARNING This shock absorber contains highly pressurized nitrogèn gas Read and understand the fpllowing information before handling th shock absorber The manufacturer cimnot be held responsible for property damage or persona injury that may result from improper handling 1 Do not tamper with or attempt to remove the snap ring or bearing at the top of the cylinder 63 1 0 ring ...

Page 67: ...ay Cylinder damage will result in poor damping performance 4 Gas pressure must be released before disposing of the shock absorber To do so drill a 2 3 mm hole through the cylinder wall at a point 10 15 mm above the bottom of the cylinder WARNING Wear eye protection to prevent eye damage from escaping gas and or metal chips 64 1 Drill 2 3 mm p 0 08 0 12 in p a 10 15 mm 0 40 0 60 in ...

Page 68: ...ck absorber from the machine 2 lnsert a screwdriver into the hole in the upper part of the plastic cover and push the damper rubber slightly downward 3 Push dawn the spring remove the spring retainer and remove the spring 65 J WJNMVYl ...

Page 69: ...ge is evident replace the shock absorber 6 By moving the rod check to see if it has a proper damping effect Slight resistance should be felt on the com pression down stroke and considerabte resistance should be felt on the return up stroke 7 lnstall the spring and install the shock absorber on the machine 66 ...

Page 70: ...s 6 Remove the valve stem from its hole and remove the tube 67 7 Remove the rim band and bead stoppers 8 If the tire is to be changed remove the second bead from the rim using the tire irons and tire lubricant INSPECTION 1 Use a cloth to check for nails or other sharp objects in the tire WAR NIN G Aiways use a cloth to avoid cutting your hand 2 Check for faults in the side wall If there is any fau...

Page 71: ...heel work is necessary for your hammer to make certain the tube is not dealer to do First check for any loose caught between tire and rim Release spokes This can be checked by bracing the air from tube front end off the ground so that the front 4 lnstall second tire bead starting op wheel can spin free Slowly revolve the front posite the valve stem using tire irons wheel and at the same time let t...

Page 72: ...l deviates from a straight line as it spins Secure the front forks from turning spin the front wheel and solidly anchor some sort of a pointer about 1 8 in away from the side of the rim As the wheel spins the distance between the pointer and the rim should not change more than 1 16 in total Any greater fluctuation means that you should have your dealer remove this rim warpage by properly ad justin...

Page 73: ... skilled technicians at your Hamaha dealer provide excellent service For replace ment parts use only genuine Yamaha Parts lmitaion parts are similar in shape but often inferior in quality of materials and workmanship consequently service life is shorter and more expensive repairs may be necessitated Any fault in the fuel compression or ignition systems can cause poor starting or loss of power whil...

Page 74: ...e kick lever There is compression Compression normal 1 to see if there is compression No compression f e 1 1 Ask Yamaha dealer to inspect J 3 Ignition Remove plug and check electrode 71 No irregularity up to fuel petcock Clean fuel petcock Ignition system normal ...

Page 75: ...g only enough hase pressure to do the job Excessive hase pressure 72 may cause water seepage and con tamination of wheel bearings front forks brake drums and transmission seals Many expensive repair bills have resulted from improper high pressure detergent applications such as those available in coin operated car washes 4 Once the majority of the dirt has been hosed off wash ali surfaces with warm...

Page 76: ...achine thoroughly prepare for storage as follows 73 1 Drain fuel tank fuel ines and car buretor float bowl 2 Remove empty fuel tank pour a eup of 1OW to 30W oil in tank shake tank to coat inner surfaces thoroughly and drain off excess oil Re install tank 3 Remove spark plug pour about one tablespoon of 1OW to 30W oil in spark plug hole and re install spark plug Kick engine over severa times with i...

Page 77: ...mosphere coat ali exposed metal sur faces with a light film of oil Do not apply oil to rubber parts or seat cover NOTE Make any necessary repairs before stor ing the motorcycle 74 ...

Page 78: ...off RESULT g 0 03527 oz w km 1 2 352 mpg u km hr 0 6214 mph z km 0 6214 mi 1 w ft lbs 0 13826 rn kg in lbs 0 01152 rn kg d a ft lbs 13 831 cm kg 0 1 in lbs 1 1521 cm kg Cl rn 3 281 ft 0 rn 1 094 yd 0 cm 0 3937 in _J 0 03937 in u mm cc cm3 0 03382 oz U S liq 1 cc cm3 0 06102 cu in a 1 liter 2 1134 pt U S Iiq u 1 liter 1 057 qt U S liq _j 0 1 liter 0 2642 gal U S liq lb 0 4535 kg oz 28 352 g w mpg 0...

Page 79: ...017855 kg mm psi lb in2 0 07031 kg cm2 Fahrenheit F 5 9 F 32 Centigrade C DEFINITION OF TERMS m kg g kg km km 1 cc kg mm Kg cm2 Meter kilograms Usually torque Gram s Kilogram s Kilometer s Liter s 1 000 grams Kilometer s per liter Mileage Cubic centimeter s cm3 Volume or capacity Kilogram s per millimeter Usually spring compression rate Kilogram s per square centimeter Pressure 76 ...

Page 80: ... mode Yamaha motorcycle is sold AS IS WITHOUT ANY WARRANTIES EXPRESSED OR IMPLIED REGARDLESS OF THE INTENDED USE THE PURCHASER OF THIS MOTORCYCLE which is intended for competition purposes IS RESPONSIBLE FOR ALL COSTS OF SERVICE AND OR REPAIR 77 ...

Page 81: ...CIRCUIT DIAGRAM Spark plug Wire color abbreviations B Black R Y Red Yellow Engine stop button Condenser Ignition coil 78 l B Source coil ...

Page 82: ... YAMAHA MOTOR CO LTD LIT 11626 00 2QI SINCE 1887 IWATA JAPAN PRINTED IN JAPAN 75 8 2 0 x 1 ...