Use and Care Manual

LH400ATV-2B OWNER’S/OPERATOR’S MANUAL 08.0
16. MAINTENANCE
16-15
Spark Plugs
Inspect:
 Insulator ①
Abnormal color: Replace.
Normal color is a medium-
To-light tan color.
 Electrode ②
Wear/damage: Replace. Clean:
 Spark plug
(with spark plug cleaner or wire brush)
Measure:
 Spark plug gap ③
Out of specification: Adjust gap.
Spark Plug Removal and Replacement
WARNING
Never attempt to remove a spark plug while the engine is warm. The exhaust
system or engine could burn you causing severe injury.
Remove the spark plug by rotating counterclockwise.
Reverse the procedure for spark plug installation. Torque to 17ft.Ibs (23N.m).
Oil and Filter Change
The recommended oil change interval is 30 hours, or every 3 mouths,
whichever comes first. Suggested break in oil change is at 20 hours, or one
mouth, whichever comes first. Severe use operation requires more frequent
Standard spark plug
DR8EA(NGK)
③ Gap:0.6-0.7mm