Oil Pump Adjustment Procedure - Polaris Magnum 2x4 Service Manual

Oil Pump Adjustment Procedure
(1996 250cc Engines)
1. Before adjusting the oil pump, check engine idle
RPM. Recommended RPM is 700. Adjust if
necessary. Check and adjust throttle lever free
play (ETC switch). See page 2.12.
2. Start the engine and let it idle. Place very slight
pressure on the throttle lever until all freeplay is
removed from throttle cable to carburetor.
3. Loosen locknut (D) and align marks (A) and (C) by
turning adjuster (E) up or down as needed.
4. When the marks are aligned, tighten locknut (D).
5. Check throttle lever freeplay/ETC switch
adjustment and readjust at throttle block if
necessary.
Oil Pump Adjustment Procedure
(300cc Engines and 1997 to current 250 cc Engines)
1. Adjust engine idle speed to 600-800
RPM.
2. Remove seat, air box cover, and air filter
to gain access to carburetor slide.
3. Pull boot back from throttle cable adjuster
located on throttle housing. Loosen lock
nut. See. III. 1.
4. Turn adjuster into throttle housing until the
oil pump lever arm rests firmly against its
stop on the oil pump body. Verify this by
pushing downward on lever arm and
checking for movement. See III. 2.
NOTE:
If lever arm cannot rest against stop
even with throttle cable adjuster screwed all
the way in, loosen oil pump cable adjuster nuts
and adjust cable down until lever arm is firmly
against stop.
Polaris Industries Inc.
2.19
MAINTENANCE
2 Stroke Engine Maintenance
250cc Engine
D
A
A. Idle Index
B. Oil Pump Lever
C. Static Line
D. Locknut
B
E. Cable Adjuster
F.
Bleed Screw
Throttle Housing
III. 1
Cable Adjuster -
Turn in until oil pump
lever arm rests against
stop (Step 4)
Lock N
Step 4 -
Verify lever is against
stop by pushing down
on lever
Oil Pump
----'<-...-
Lever Stop
III. 2
Measure
Distance
_I
5/98