Spark Plugs; Engine Oil - Filter - Tracker Off-Road XTR1000 Service Manual

6. If compression is still low, check for blown cylinder
head gasket, valve leakage, or worn piston rings or cyl-
inder (see Engine – Servicing Components).

Spark Plugs

 NOTE: The rear cargo tray must be removed for
this procedure.
CAUTION
Before removing a spark plug, be sure to clean the area
around the spark plug. Dirt could enter engine when
removing or installing the spark plug.
! WARNING
Always wear safety glasses when using compressed air.
1. Using compressed air, blow any debris from around
the ignition coils. Remove the spark plug connectors
(B) from the ignition coils (A).
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2. Remove bolts from ignition coils (A). Remove igni-
tion coil (A). Remove spark plugs.
A light brown insulator indicates the plug and fuel/air
ratio are correct. A white or dark insulator indicates that
the engine may need to be serviced. To maintain a hot,
strong spark, keep the plug free of carbon. Adjust the gap
to 0.7-0.8 mm (0.028-0.031 in.).
ATV-0051
ATV-0052
A new spark plug should be tightened 1/2 turn once the
washer contacts the cylinder head. A used spark plug
should be tightened 1/8-1/4 turn once the washer contacts
the cylinder head.
Engine Oil — Filter
OIL — FILTER
Change the engine oil and oil filter at the scheduled inter-
vals. The engine should always be warm when the oil is
changed so the oil will drain easily and completely.
 NOTE: The rear cargo tray must be removed to
access the oil tank and top of the engine.
1. Park the vehicle on level ground.
2. Loosen the oil level stick. Be careful not to allow
contaminants to enter the opening.
XX230
3. Loosen the fill plug on top of the valve cover. Be
careful not to allow contaminants to enter the open-
ing.
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