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Set valves to top dead center
Place screwdriver into spark plug hole to help determine the
position of the piston, then slowly pull the recoil rope until
the piston rises to the top position and both valves are closed
(compression step).
5.
Check intake valve clearance
Check exhaust valve clearance
The intake valve is on the right side of the cylinder head. Slide
a 0.006” (0.152 mm) feeler gauge in-between the valve head
and rocker arm. If the feeler gauge is too loose, then tighten
the rocker nut until the feeler ts rmly in the gap; but not too
tight that you can’t remove it. If the feeler doesn’t t in the gap,
then loosen the rocker nut until feeler gauge ts rmly inside
the gap.
The exhaust valve is on the left side of the cylinder head. Slide
a 0.008” (0.203 mm) feeler gauge in-between the valve head
and rocker arm. If the feeler gauge is too loose, then tighten
the rocker nut until the feeler ts rmly in the gap; but not too
tight that you can’t remove it. If the feeler doesn’t t in the gap,
then loosen the rocker nut until feeler gauge ts rmly inside
the gap.
6.
7.
Remove valve cover
Remove all 4 bolts on the valve cover with an 8 mm socket
wrench, then remove the valve cover.
4.
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