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Maintenance – Polaris Offroad Vehicle User Manual

Page 119

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109

MAINTENANCE

Oil Pump Adjustment Procedure

250 and 300 Engines

1. Before adjusting the oil pump,

check engine idle RPM and car-

buretor adjustments which are

found in the owner’s manual sup-

plement.

2. Remove electronic throttle con-

trol (ETC) cover.

3. Loosen throttle cable jam nut and

turn adjuster in or out until there is

1/16″ (.16 cm) of throttle lever

travel before throttle slide starts to

open.

4. Place very slight pressure on the

throttle lever until all freeplay is re-

moved from throttle cable (to the

point where the carb slide is just

starting to rise).

5. Loosen locknut. Turn adjuster in

or out until all freeplay is removed

from oil pump cable (the point

where the oil pump arm is just

starting to move off of its stop).

The pump stop keeps the pump

arm from rotating any farther

down than the idle position so no

visual alignment of marks is nec-

essary. Tighten the locknut

Lever

Locknut

Cable Adjuster

Locknut

Lever Arm