7. CYLINDER/PISTON
7-4
Check cylinder if warp.
Service limit: 0.05 mm
PISTON REMOVAL
Plug crankcase opening with a cleaning cloth to
prevent from piston pin snap ring or other foreign
materials falling into crankcase when
disassembling.
Hold another snap ring with pliers.
Push out the piston pin from the side that not
removed the snap ring.
Inspection
Measure clearance between piston ring and its
grooves.
Service Limit: Top ring: 0.09 mm
2
nd
ring: 0.09 mm
Remove piston rings
Check if the piston rings are damaged or its
grooves are worn.
Caution
z
Pay attention to remove piston rings
because they are fragile.
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