Valve Clearance - Honda GX120K1 Manual

MAINTENANCE
Rammer type:
1. Move and release the retaining clip, and remove the air
cleaner cover.
Remove the air filter elements and separate them.
Carefully check both elements for holes or tears and replace it
if damaged.
2. Paper element: Tap the element lightly several times on a hard
surface to remove excess dirt or blow compressed air lightly
(30 PSI or less) through the filter from the inside out. Never try
to brush the dirt off; brushing will force dirt into the fibers.
3. Foam element: Clean with warm soapy water, rinse, and allow
to dry thoroughly. Dip the element in clean engine oil and
squeeze out all the excess. The engine will smoke during initial
start-up if too much oil is left in the foam.
4. Insert the open end of the filter assembly into the air cleaner
case, so the closed end is at the cover.
CAUTION
• The air cleaner cover may come out of position during
operation due to vibration if not tightened properly.
• The service life of the engine will be shortened if the air
filter cover or cleaner element is not installed or is installed
improperly.

6. VALVE CLEARANCE

Note:
Valve clearance inspection and adjustment must be performed
when the engine is cold.
1. Remove the four cylinder head cover bolts, cylinder head
cover, and gasket.
2. Set the piston at top dead center of the compression stroke
(both valves fully closed). The triangular mark on the starter
pulley will align with the top hole on the fan cover when the
piston is at top dead center of the compression or exhaust
stroke.
3-8
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GX120K1•GX160K1•GX200