CHAPTER 3B ENGINE 50cc/80cc
ATV SERVICE MANUAL07.0
CHAPTER 3B ENGINE PAGE 3B - 13 -
pry out valve guide pipe
Be careful to not damage cylinder head
Surface.
Press in the new valve guide pipe.
Spread engine oil on new O-ring and build up
new valve guide pipe.
Make sure cylinder head is still warm when
pressing in new guides.
Size valve guide with reamer after installing.
·
Use cutting oil on reamer.
·
Rotate reamer in proper direction and do not
stop rotation to push in or pull out.
Clean cylinder head and get rid of cut bits of
metal and dust.
Special tools
Valve guide pipe reamer
Valve seat checking and correcting
Valve seat checking
Get rid of carbon deposit from combustion
chamber and valves.
Spread emery on seat surface between valve
and valve seat.
Use polishing bar to wear-in valve.
Take out valve and check valve seat surface.
Change if valve surface is coarse or facial
polished.
Valve seat surface width checking.
Used limit: above 1.8mm correct.
Correct valve seat by chamfered tool if
surface width is not even or too wide and too
narrow.
Valve seat chamfer cutting tools
Refer to valve chamfered tool handbook for
detailed.
Press and rotate with 4-5 kg (10-12lb) force
to polish and cut when correcting.
Use chamfered tool after spreading engine
oil on it.
Summary of Contents for 2005 ATV 260
Page 15: ...CHAPTER 1 GENERALINFORMATION ATV SERVICE MANUAL 07 0 CHAPTER 1 GENERAL PAGE 1 11 NOTES...
Page 37: ...CHAPTER 2 MAINTENANCE ATV SERVICE MANUA 07 0 CHAPTER 2 MAINTENANCE PAGE 2 22 NOTES...
Page 106: ...CHAPTER 3A ENGINE 260 300 cc ATV SERVICE MANUAL07 0 CHAPTER 3 ENGINE PAGE 3A 69 NOTES...
Page 157: ...CHAPTER 3B ENGINE 50cc 80cc ATV SERVICE MANUAL07 0 CHAPTER 3B ENGINE PAGE 3B 51 3 8 Carburetor...
Page 177: ...CHAPTER 3B ENGINE 50cc 80cc ATV SERVICE MANUAL07 0 CHAPTER 3B ENGINE PAGE 3B 71 NOTES...
Page 213: ...CHAPTER 3C ENGINE 100 125 150 200 SERVICE MANUAL07 0 CHAPTER 3C ENGINE PAGE 3C 36 NOTES...
Page 232: ...CHAPTER 4B CHASSIS ATV SERVICE MANUAL07 0 CHAPTER 4 CHASSIS PAGE 4B 11 NOTES...
Page 261: ...CHAPTER 5 FINAL DRIVE ATV SERVICE MANUAL 07 0 CHAPTER 5 FINAL DRIVE 5 29 NOTES...
Page 276: ...CHAPTER 6 TRANSMISSION ATV SERVICE MANUAL 07 0 CHAPTER 6 TRANSMISSION PAGE 6 15 NOTES...
Page 289: ...CHAPTER 7 BRAKES ATV SERVICE MANUAL 07 0 CHAPTER 7 BRAKES PAGE 7 13 NOTES...
Page 297: ...CHAPTER 8 ELECTRICAL ATV SERVICE MANUAL 07 0 CHAPTER 8 ELECTRICAL PAGE 8 8 CIRCUIT DIAGRAM...
Page 331: ......
Page 332: ......
Page 333: ......
Page 334: ......
Page 335: ......
Page 336: ......
Page 337: ......
Page 338: ......
Page 339: ......
Page 340: ...ATV SERVICE MANUAL 07 0 NOTES...
Page 341: ...9B 9 939397 93...