Owner's Manual

37
SERVICING YOUR PUMP
Install the spark plug carefully, by hand, to avoid cross-threading.
Attach the spark plug cap.
A loose spark plug can overheat and damage the engine.
Overtightening the spark plug can damage the threads in the
cylinder head.
If installing a new spark plug, tighten 1/2 turn after the spark plug
seats.
If reinstalling the used spark plug, tighten 1/8 1/4 turn after the
spark plug seats.
After the spark plug seats, tighten with a 13/16-inch spark plug
wrench to compress the washer.
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