2011 Polaris Ranger RZR ATV Service Manual, Page 80Get this manual

2011 Polaris Ranger RZR ATV Service Manual, Page 80

ENGINE 4Inspect the cut area of the seat: NOTE: When using an interference angle, the seat contact point on the valve will
(46apply black permanent marker to the entire valve face (A) Proper Seat Contact on Valve Face Bottom 60 Insert valve into
guide and tap valve lightly into place few timesRemove valve and check where the Prussian Blue indicates seat contact on
the valve faceThe valve seat should contact the middle of the valve face or slightly above, and must be the proper width
Seat Width If the indicated seat contact is at the top edge of the valve face and contacts the margin area (B) it is too
high on the valve faceUse the 30 cutter to lower the valve seat If too low, use the 60 cutter to raise the seatWhen contact
area is centered on the valve face, measure seat width If the seat is too wide or uneven, use both top and bottom cutters
to narrow the seat If the seat is too narrow, widen using the 45 cutter and recheck contact point on the valve face and seat
width after each cut = In mmValve Seat Width: Intake Std: .028" (.7 mm) Limit: .055" (1.4 mm) Exhaust Std: .039" (1.0 mm)