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Polaris Sportsman 400 - Exhaust Valve Clearance Adjustment; Intake Valve Clearance Adjustment

Polaris Sportsman 400
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MAINTENANCE
2.29
INTAKE VALVE CLEARANCE ADJUSTMENT
1. Insert a .006 (.15mm) feeler gauge between end of
intake valve stem and clearance adjuster screw .
2. Using a 10 mm wrench and a screwdriver, loosen
adjuster lock nut and turn adjusting screw until there is
a slight drag on the feeler gauge.
3. Hold adjuster screw and tighten adjuster lock nut
securely.
4. Re-check the valve clearance.
5. Repeat adjustment procedure if necessary until
clearance is correct with locknut secured.
6. Repeat this step for the other intake valve.
EXHAUST VALVE CLEARANCE ADJUSTMENT
NOTE: The exhaust valves share a common rocker arm,
and must be adjusted using two feeler gauges.
1. Insert .006 feeler gauge(s) between end of exhaust
valve stem and adjuster screw(s).
2. Loosen locknut(s) and turn adjuster screw(s) until
there is a slight drag on feeler gauge(s). NOTE: Both
feeler gauges should remain inserted during
adjustment of each valve.
3. When clearance is correct, hold adjuster screw and
tighten locknut securely
4. Re-check the valve clearance.
5. Repeat adjustment procedure if necessary until
clearance is correct with locknut secured.
.006 (.15 mm)
INTAKE VALVE CLEARANCE
.006 (.15 mm)
EXHAUST VALVE CLEARANCE
2 Feeler Gauges

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