Coat a new O-ring with engine oil and install it to
the insulator groove.
Install the insulator with "UP" mark facing up.
Install and tighten the bolts securely.
Install the following:
– Cylinder head (page 8-25)
– Spark plug (page 3-9)
CYLINDER HEAD INSTALLATION
• The front cylinder head uses the same service
procedure as the rear cylinder head.
• Be careful not to damage the mating surfaces.
• When cleaning the cylinder head mating surface,
place the shop towel over the cylinder opening to
prevent dust or dirt from entering the engine.
Clean the gasket mating surfaces of the cylinder and
cylinder head thoroughly.
Install the cam chain guide by aligning the guide
end with the groove in the crankcase and the bosses
with the groove in the cylinder.
CYLINDER HEAD/VALVES
O-RING
INSULATOR
INSULATOR
CHAIN GUIDE
Align
BOLTS
"UP" MARK
Align
8-25