ENGINE
3.22
CYLINDER HEAD ASSEMBLY CONT’D
5. Dip valve spring and retainer in clean engine oil
and install spring with closely spaced coils toward
the cylinder head.
Closely spaced
coils toward
cylinder head
6. Place retainer on spring and install valve spring
compressor. Compress spring only enough to
allow split keeper installation to prevent loss of
spring tension. Install split keepers with the gap
even on both sides.
7. Repeat procedure for remaining valve.
8. When all valves are installed, tap lightly with soft
faced hammer on the end of the valves to seat the
split keepers.
VALVE SEALING TEST
1. Clean and dry the combustion chamber area.
2. Pour a small amount of clean solvent into the
intake port and check for leakage around each
intake valve. The valve seats should hold fluid
with no seepage.
3. Repeat for exhaust valves by pouring fluid into
exhaust port.
ENGINE BOTTOM END
DISASSEMBL
Y
Cylinder Removal
Follow engine disassembly procedures to remove
valve cover, camshaft and rocker arms, and cylinder
head.
1. Remove cam chain guide at front of cylinder.
2. Remove the two 6 mm cylinder base bolts.
3. Tap cylinder lightly with a plastic hammer in the
reinforced areas only until loose.
A
4. Rock cylinder forward and backward and lift it
from the crankcase, supporting piston and
connecting rod. Support piston with Piston
Support Block (PN 2870390)(A).
5. Remove dowel pins from crankcase.
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