Servicing the Air Cleaner (continued)
9. Rinse and dry the foam element thoroughly.
10. Wipe dirt from the base and the cover with a moist rag.
IMPORTANT
Ensure that dirt and debris do not enter the air duct leading to the carburetor.
11. Install the air-cleaner elements and ensure that they are properly positioned. Install the
lower wing nut.
12. Install the cover and install the upper wing nut to secure it.
Servicing the Spark Plug
Use an NGK BPR6ES spark plug or equivalent.
1. Shut off the engine and wait for all moving parts to stop.
2. Clean around the spark plug.
3. Remove the spark plug from the cylinder head.
IMPORTANT
Replace a cracked, fouled, or dirty spark plug. Do not sand blast, scrape, or clean the
electrodes because engine damage could result from grit entering the cylinder.
G404896
4. Set the gap on the plug to 0.7 to 0.8 mm
(0.028 to 0.031 inch).
5. Carefully install the spark plug by hand (to
avoid cross threading) until it is hand tight.
6. Tighten the spark plug an additional 1/2 turn if
it is new; otherwise, tighten it an additional 1/8
to 1/4 turn.
IMPORTANT
A loose spark plug can become very hot and can damage the engine; overtightening
a spark plug may damage the threads in the cylinder head.
7. Connect the wire to the spark plug.
9
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