Removing The Cylinder; Removing The Piston; Low Compression Pressure - Linhai 2004 ATV 260 Service Manual

CHAPTER 3B ENGINE 50cc/80cc
ID of piston pin hole
OD of the piston pin
Clearance between the piston pin and the hole
ID of the small end of the connecting rod
Trouble shooting
●In case of difficult starting, unsteady low speed running, check if there is any problem.

Low compression pressure

●The piston ring worn, burnt/broken
●The cylinder or the piston worn or damage.
Too high compression press
●carbon deposit on the piston and the combustion chamber.
White smoke out of the exhaust pipe
●The piston ring worn/damaged.
●The piston/cylinder worn or damaged.

3.3.2 Removing the cylinder

Detach the cylinder head
Remove the chain guide of the cam chain
Remove the cylinder
Remove the cylinder gasket and the locating pin
from the the cylinder.

3.3.3 Removing the piston

Remove the piston pin circlip.
Attention:
Don't drop the circlip into the crankcase
Take out the piston pin and then the piston
Push the piston pin from the side opposite the
removed snap ring
Pay attention to avoid scratching the piston surfaces
Checking the piston, the piston pin and the piston
ring.
Attention:
Don't damage or break the rings.
Clear off all the carbon deposit from the ring groove.
ATV SERVICE MANUAL09.0
13.002-13.008
13.992-13.000
0.002-0.014
13.016-13.027
Knocking noise by the piston.
●The cylinder, the piston or the piston ring worn
●The piston pin and piston hole worn.
CHAPTER 3B ENGINE
13.04
12.96
0.02
13.06
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