Compression / Leakdown Test; Intake Valve Clearance Adjustment; Exhaust Valve Clearance Adjustment - Polaris RZR 170 2009 Service Manual

MAINTENANCE

Compression / Leakdown Test

IMPORTANT: Use of a compression tester adaptor
that is too long WILL CAUSE DAMAGE to the cylinder
head. The adaptor length should be no longer than
the length of the spark plug threads (1/2" or 12.07mm).
Compression tester adaptor threads
should not exceed spark plug threads.
Cylinder Compression
Standard: 130 - 160 psi
Cylinder Leakage
Service Limit: 15%
Inspect if leakage exceeds 15%
2.22
1/2" (12.07mm)

Intake Valve Clearance Adjustment

1. Remove the valve cover and secondary air pipe assembly.
2. Verify cam lobes are pointed down.
3. Insert the correct thickness feeler gauge between end of
intake valve stem and adjuster screw.
4. When clearance is correct, hold adjuster screw and tighten
locknut securely.
5. Re-check the valve clearance.
6. Repeat adjustment procedure if necessary until clearance is
correct with locknut secured.
Valve Clearance:
.003" (.07 mm)

Exhaust Valve Clearance Adjustment

1. Remove the valve cover and secondary air pipe assembly.
2. Verify cam lobes are pointed down.
3. Insert the correct thickness feeler gauge between end of
exhaust valve stem and adjuster screw.
4. Loosen locknut and turn adjuster screw until there is a slight
drag on feeler gauge.
5. When clearance is correct, hold adjuster screw and tighten
locknut securely.
6. Re-check the valve clearance.
7. Repeat adjustment procedure if necessary until clearance is
correct with locknut secured.
Valve Clearance:
.003" (.07 mm)
= In. / mm.
= In. / mm.