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Polaris Sportsman 400 - Page 110

Polaris Sportsman 400
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ENGINE
3.41
CYLINDER INSPECTION, CONT.
5. Recordmeasurements. If cylinder is taperedor outof
round beyond .002, the cylinder must be re-bored
oversize, or replaced.
PISTON-TO-CYLINDER CLEARANCE
1. Measure piston outside diameter at a point 5 mm up
from the bottom of the piston at a right angle to the
direction of the piston pin.
2. Subtract this measurement from the maximum
cylinder measurement obtained in step 5 above.
Cylinder Taper
Limit: .002 Max.
Cylinder Out of Round
Limit: .002 Max.
Standard Bore Size:
3.6216-3.6224I (91.99-92.01 mm)
5mm
Piston
Piston Pin
Piston to Cylinder Clearance
Std: .0006-.0018I (.015-.045 mm)
Piston O.D.:
Std: 3.6206-3.6210I (91.96-91.97 mm)

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