Spark Plug - Honda GX630 Owner's Manual

37ZCK803.fm 8 ページ ２０２１年７月２日 金曜日 午後２時２２分
5. Clean the filter elements if they are to be reused.
Paper filter element: Tap the filter element several times on a hard
surface to remove dirt, or blow compressed air [not exceeding 207 kPa
2
(2.1 kgf/cm , 30 psi)] through the filter element from the clean side that
faces the engine. Never try to brush off dirt; brushing will force dirt into
the fibers. Replace the paper filter element if it is excessively dirty.
Foam filter element: Clean in warm soapy water, rinse, and allow to dry
thoroughly. Or clean in non-flammable solvent and allow to dry. Dip the
filter element in clean engine oil, and then squeeze out all excess oil.
The engine will smoke when started if too much oil is left in the foam.
Soak Squeeze
6. Wipe dirt from the inside of the air cleaner body and cover, using a
moist rag. Be careful to prevent dirt from entering the air chamber that
leads to the carburetor.
7. Reinstall the paper filter element.
8. Put the foam filter element on the element holder, and reinstall the
element holder on the air cleaner case. Hook the two spring tabs
securely.
9. Lock the air cleaner cover latch securely.
8
Dry
Oil Squeeze

SPARK PLUG

Recommended Spark Plug: ZFR5F-4 (NGK)
The recommended spark plug has the correct heat range for normal engine
operating temperatures.
Incorrect spark plugs can cause engine damage.
If the engine has been running, let it cool before servicing the spark plugs.
For good performance, the spark plugs must be properly gapped and free
of deposits.
1. Disconnect the spark plug caps, and remove any dirt from around the
spark plug area.
2. Remove the spark plugs with a 5/8-inch spark plug wrench.
SPARK PLUG CAP
3. Inspect the spark plugs. Replace
them if damaged, badly fouled, if
the sealing washer is in poor
condition, or if the electrode is
worn.
4. Measure the spark plug electrode
gaps with a wire-type feeler
gauge. Correct the gap, if
necessary, by carefully bending
the side electrode.
The gap should be:
0.3–0.4 mm (0.012–0.016 in)
5. Install the spark plug carefully, by
hand, to avoid cross-threading.
6. After the spark plug is seated,
tighten with a 5/8-inch spark plug
wrench to compress the sealing washer.
When installing a new spark plug, tighten 1/2 turn after the spark plug
seats to compress the washer.
When reinstalling the original spark plug, tighten 1/8–1/4 turn after the
spark plug seats to compress the washer.
TORQUE: 18 N·m (1.8 kgf·m, 13 lbf·ft)
A loose spark plug can overheat and damage the engine.
Overtightening the spark plug can damage the threads in the cylinder
head.
7. Attach the spark plug caps to the spark plugs.
ENGLISH
SPARK PLUG WRENCH
SIDE ELECTRODE
0.3–0.4 mm
(0.012–0.016 in)
SEALING
WASHER