Honda EU65is Owner's Manual page 48

5.Visually inspect the spark plug. Discard it if the insulator is cracked,
chipped, or fouled. Clean the spark plug with a wire brush if it is to
be reused.
6.Measure the plug gap with a feeler gauge.
Correct as necessary by carefully bending the side electrode.
The gap should be:
0.7–0.8 mm (0.028–0.031 in)
SEALING WASHER
7.Install the spark plug carefully by hand, to avoid cross-threading.
8.After a new spark plug has been seated by hand, it should be
tightened 1/2 turn with a wrench to compress its washer.
If a used plug is being reinstalled, it should only require 1/8 to 1/4
turn after being seated.
CAUTION:
• The spark plug must be securely tightened. An improperly tightened
plug can become very hot and possibly damage the generator.
• Never use a spark plug with an improper heat range.
9.Reinstall the spark plug inspection cover and tighten the cover screw.
10. Close the left maintenance cover.
46
0.7–0.8 mm
(0.028–0.031 in)
PLUG GAP