Polaris ATV 2002 Owner's Manual page 109

MAINTENANCE AND LUBRICATION
Lubrication
Oil Pump Adjustment Procedure
400 Engines
1. Before adjusting the oil pump,
check engine idle RPM and
carburetor adjustments which
are found in the owner's manual
supplement.
2. Loosen throttle cable jam nut
and turn adjuster in or out until
there is 1/16" - 1/8" (.16 - .32
cm) of throttle lever travel
before throttle slide starts to
open. See Owner's Manual
Supplement.
3. Place very slight pressure on the throttle lever until all freeplay is
removed from throttle cable (to the point where the carb slide is
just starting to rise).
4. Lift boot (1) up off adjuster sleeve (2). Remove the oil pump
cover. Loosen the cable adjuster locknut. Adjust oil pump cable
until marks align (D) when the throttle slide just begins to raise.
5. Tighten the locknut.
6. Recheck adjustment. If correct, slide boot all the way down over
the upper portion of the bottom nut (3) to ensure good sealing
against water entry. Reinstall oil pump cover and gasket.
1
106
Oil Pump Adjustment 400
2
3
D