2007 Polaris Two Stroke Snowmobile Workshop Repair manual, Page 63Get this manual
MAINTENANCE Continue to rotate the crankshaft in the normal direction of rotation until the dial indicator reads .100" (2.54mm) after top dead center (ATDC)8Bend the pointer or move the degree wheel until the pointer aligns with 180 mark on the degree wheel9With the pointer aligned, make sure the degree wheel and pointer are secured and will not move out of positionRe-check accuracy of this location few timesThe pointer should align with the 180 mark when the dial indicator reads .100" (2.54mm) ATDCNOTE: Do not move the crankshaft, degree wheel or pointer after the initial setting on the MAG end cylinder simply read the wheel and dial indicator10Remove the dial indicator and install in PTO cylinderRepeat finding TDCNote the degree wheel indication when the dial indicator reads .100" ATDCIt should be 180 (+-2) from the MAG cylinder mark7