ENGINE
65
Valve
Before disassembling the inner parts of the cylinder
head (for example valve, valve spring, valve seat),
check the valve seal before hand.
1. Check
Valve sealer
Leakage at valve seat
Check the working face of the
valve
Valve seat and valve seat width
Refer to
Valve seat check and maintenance
Note
2. Disassemble
Valve lock
When disassemble the valve lock, use the valve spring
compression tool to compress the compression valve
spring.
Note
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3. Disassemble
Valve spring upper seat
Valve spring
Valve
Valve seal
Valve spring lower seat
Mark positions of every parts to install it on the original
position once more.
Note
Check steps
Pour the clean solvent
in the intake valve and the
exhaust valve.
Check the valve seal.
No leakage around the valve seat
Valve spring compression tool
Содержание JS125-6B
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Страница 11: ...CHAPTER 1 GENERAL INFORMATION...
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Страница 19: ...CHAPTER 2 SPECIFICATIONS...
Страница 20: ...10 SPECIFICATIONS General specifications SAE 20W 40 SAE 10W 30...
Страница 21: ...SPECIFICATIONS 11...
Страница 22: ...12 SPECIFICATIONS...
Страница 23: ...SPECIFICATIONS 13 Check the Specification...
Страница 24: ...14 SPECIFICATIONS...
Страница 25: ...SPECIFICATIONS 15...
Страница 26: ...16 SPECIFICATIONS...
Страница 27: ...SPECIFICATIONS 17...
Страница 28: ...18 SPECIFICATIONS Lock torque Engine...
Страница 29: ...SPECIFICATIONS 19 Body frame...
Страница 31: ...SPECIFICATIONS 21 Lubrication point and type of lubricants Engine...
Страница 32: ...22 SPECIFICATIONS Body YAMAHA 4 Stroke engine oil Light lithium base grease Special grease...
Страница 34: ...24 SPECIFICATIONS Cam shaft Filter net assy Crankshaft assy Main axle Drive axle Clutch assy...
Страница 35: ...CHAPTER 3 PERIODIC INSPECTION AND ADJUSTMENT...
Страница 63: ...CHAPTER 4 ENGINE...
Страница 99: ...ENGINE 89 Gear shift cam and fork Fork guide rod 1 Fork 3 Fork 1 Cam Star gear Fork guide rod 2 short...
Страница 116: ...106 ENGINE Cylinder and piston Cylinder O ring Gasket Dowel pin Piston ring Piston pin circlip Piston Piston pin...
Страница 125: ...CHAPTER 5 CHASSIS...
Страница 126: ...116 CHASSIS Front wheel Lock nut Instrument gears Front wheel axle Spacer Front wheel assy Spacer assy Front wheel assy...
Страница 135: ...CHASSIS 125 Brake shoes Camshaft lever Rear brake Indicator plate Brake camshaft...
Страница 156: ...146 CHASSIS Rear shock absorber and rear arm Rear shock absorber Nut Rear arm Connection rod Chain cover...
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Страница 159: ...CHAPTER 6 CABLE AND ELECTRIC APPLIANCE SYSTEM...
Страница 168: ...CABLE AND ELECTRIC APPLIANCE SYSTEM 158 Electric device principle...
Страница 169: ...159 Electric appliance...
Страница 170: ...CABLE AND ELECTRIC APPLIANCE SYSTEM 160...
Страница 175: ...CABLE AND ELECTRIC APPLIANCE SYSTEM 165 Ignition system diagram...
Страница 179: ...CABLE AND ELECTRIC APPLIANCE SYSTEM 169 Electric start system...
Страница 188: ...CABLE AND ELECTRIC APPLIANCE SYSTEM 178 Charging system...
Страница 191: ...CABLE AND ELECTRIC APPLIANCE SYSTEM 181 Lighting system...
Страница 196: ...CABLE AND ELECTRIC APPLIANCE SYSTEM 186 Signal system...
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Страница 205: ...CHAPTER 7 TROUBLESHOOTING...
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