3
3.83
9925723 R01 - 2015
RZR
900 Service Manual
© Copyright 2014 Polaris Industries Inc.
7.
Measure the valve clearance
7
using a thickness
(feeler) gauge. Record the measurement if clearance
is out of specification.
Intake Valve Clearance (cold):
0.006 ± .002″ (0.15 ± 0.05 mm)
Exhaust Valve Clearance (cold):
0.008 ± .002″ (0.20 ± 0.05 mm)
8.
Repeat steps 6 and 7 until all eight valves have been
inspected.
9.
If any of the valve clearance measurements are out
of specification, remove the camshaft carriers and
camshafts and proceed with this procedure.
NOTE: If all valve clearance measurements are
within
specification,
remove
the
camshaft
carriers and proceed to Camshaft Installation /
Timing, page 3.77.
10. Remove the valve tappet from a valve that was out of
specification.
NOTE: Keep mated parts together and in order
with respect to their location in the cylinder head
for assembly purposes. Mark each component or
place them in an organized rack as you remove
them.
CAUTION
If performing this procedure with the cylinder head
installed on the engine, cover the spark plug holes and
the cam chain opening to prevent a valve adjustment
shim from falling into the cylinder or crankcase.
11. Record the 3 digit number on the bottom of the
tappet
8
.
12. Reference
the
valve
clearance
measurement
recorded for that valve, along with the 3-digit tappet
number.
13. Refer to the appropriate tappet selection matrix
(Intake or Exhaust) on the following pages and select
the proper tappet.
14. Install the appropriate tappet.
NOTE: Lubricate the outer portion of the valve
bucket upon installation.
15. Repeat steps 10-14 until all necessary valves have
been adjusted.
16. Reinstall the camshafts and camshaft carriers and
tighten the bolts evenly to specification.
Camshaft Carrier Bolts:
89 in-lbs (10 Nm)
17. Measure and confirm that valve clearance is now
within specification for each valve.
18. If valve clearance is not within specification, repeat
this procedure.
19. If all valve clearance measurements are now within
specification, remove the camshaft carriers and
proceed to
Camshaft Installation / Timing, page
3.77.
ENGINE / COOLING SYSTEM