3
3.75
VALVE SEALING TEST
1. Clean and dry the combustion chamber area
q
.
2. Pour a small amount of clean solvent into each
intake port
w
and check for leakage around the
valves. The valve seats should hold fluid with no
seepage.
3. Repeat for exhaust valves by pouring fluid into each
exhaust port
e
.
CYLINDER HEAD INSTALLATION
1. Prepare cylinder head gasket sealing surfaces by
cleaning thoroughly to remove all residue. The head
gasket must be installed clean and dry, free from oil
or grease.
NOTE
Do not touch sealing surfaces of gasket.
2. Reinstall two head alignment pins in upper
crankcase.
3. Install cam chain tensioner blade in upper
crankcase. Install a new O-ring on pivot bolt and
lubricate with engine oil. Torque bolt
q
to
specification.
4. Lift cam chain and install chain guide.
5. Be sure tabs
w
are engaged in slots. Secure cam
chain with a wire so it will not fall into crankcase.
6. Thread cam chain through a new head gasket and
install gasket, locating it on the alignment pins.
7. Set cylinder head in place on alignment pins. Apply
engine oil to threads and flange of the six main
cylinder head bolts.
ENGINE / COOLING SYSTEM
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