14
SERVICING AIR FILTER
The engine will not run properly and may cause damages if operating with a dirty air filter.
Service air filters more frequently in dirty or dusty conditions.
Turn knob and remove air filter cover.
Wash in soapy water. Squeeze filter dry in clean cloth. DO NOT twist.
Clean air filter cover before reinstalling it.
Model 716173
Model 716174
3300
Watts
7000 Watts
SERVICING SPARK PLUG
Replace spark plug if electrodes are pitted, burned or porcelain is cracked. Use recommended
replacement plugs only. Spark plug type: F6TC
Clean area around spark plug.
Remove and inspect spark plug.
Inspect electrode gap with wire feeler gauge and reset spark plug gap to 0.028
–
0.031 in
(0.70
–
0.80 mm).
Install spark plug finger tight and tighten an additional 3/8 to 1/2 turn using spark plug
wrench.
SPARK PLUG
Summary of Contents for 716173
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