2-4
CD655
3. Remove the spark plug wire and the spark plug;
then rotate the engine clockwise to the TDC posi-
tion on the compression stroke.
NOTE: The “T” mark on the rotor/flywheel is
aligned with the timing pointer on the crankcase,
and intake and exhaust valve adjuster screws
must not have pressure on them. The two punch
marks on the camshaft gear are aligned with the
valve cover surface, and the hole in the timing
gear points away from the engine.
CD652
CD656A
4. Using a feeler gauge, check each valve tappet
clearance. If the clearance is not within 0.1 mm,
loosen the jam nut and rotate the tappet adjuster
screw until the clearance is within specifications.
Tighten each jam nut securely after completing the
adjustment.
CD659
YT170
5. Check the valve/tappet clearance after the jam nut
has been tightened to ensure that the clearance did
not change.
CD658
6. Install the valve cover and tighten the four cap
screws to 7 ft-lb using a crisscross pattern; then
install the breather tube.
7. Install the fan shroud and tighten the two cap
screws securely. Tighten the self-tapping screws
snug taking care not to strip the plastic cover.
8. Install the spark plug and tighten to 9 ft-lb; then
install the spark plug wire.
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