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Polaris Sportsman 850 - Valve Clearance Adjustment

Polaris Sportsman 850
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2.18
VALVE CLEARANCE ADJUSTMENT
1. Remove seat and upper side panels.
2. Disconnect the shift linkage from the shift lever.
3. Remove the (4) push rivets from each front mud
guard and remove the mud guards from the vehicle.
4. Remove the front rack or storage box assembly.
5. Disconnect the negative battery cable.
NOTE
Be sure to cover fuel tank inlet with a shop towel prior to
front cab removal.
6. Remove the front cab assembly.
7. Remove the rubber strap retaining the ECU to the
airbox.
8. Remove the breather hose
q
from the side of the
airbox.
9. Remove the spark plug wires and spark plugs from
the cylinder head.
NOTE
Step 11 does not apply for Models with Electronic
Throttle Control.
10. Disconnect the chassis harness
q
from the IAC
valve. Remove the two hoses from the valve ports
w
.
11. Remove the two air box mounting fasteners
t
.
12. Remove the 4 screws
e
that retain the intake
runners to the throttle body.
NOTE
DO NOT attempt to remove the intake runners from the
intake plenum or remove the plenum from the airbox.
MAINTENANCE

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