Instructions / Assembly

37
SERVICING YOUR PUMP
5.Install the spark plug carefully, by hand, to avoid cross-threading.
6.After the spark plug seats, tighten with a 13/16-inch spark plug
wrench to compress the washer.
If reinstalling the used spark plug, tighten 1/8–1/4 turn after the
spark plug seats.
If installing a new spark plug, tighten 1/2 turn after the spark plug
seats.
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 cap.
31YG0610.book Page 37 Monday, March 24, 2014 8:39 AM