Spark Plugs - Craftsman 108.27807 Operator's Manual

Spark Plugs

Inspect the following:
1. Insulator (1) for abnormal
color. Normal color is a
medium to light tan.
Replace if necessary.
2. Electrode (2) for
wear/damage. Replace or
clean spark plug with spark
plug cleaner or a wire
brush.
3. Spark plug gap (3): 0.60 to 0.70mm.
Adjust gap as necessary
when out of specification.
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 Oil Screen Change
WARNING
Oil may be hot. Do not allow hot oil to come into contact with skin as severe burns
may result
The recommended oil change interval is 30 hours, or every 3 months, whichever
comes first. Suggested oil change during the break-in period is at 20 hours, or one
month, whichever comes first. Only use high quality detergent oil rated with API
service classification SG-SL. The recommended oil for this ATV is 15W/40. ). Be
sure to change the oil screen (see illustrated parts list) whenever changing oil.
Severe use operation requires more frequent service. Severe use includes
continuous use in dusty or wet conditions, and cold weather riding.
NOTE: Cold weather riding is defined as all riding in temperatures below 10°F
(-12C), and riding in temperatures between 10°F (-12C) and 30°F (0C) at slow
speeds of less than 5 mph (8km/h).
To change oil:
Standard spark plug:
NGK DR7EA
66