1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 227Get this manual

1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 227

ENGINECOOLING Crankshaft Indexing 7With the pOinter aligned, make sure the degree wheel and pOinter are secured and will
vibration of engine, backfiring, etc Rough idle, poor top speed Dial Caliper Crankshaft Indexing (Three Cylinder Engines
Only) Be sure to keep the dial caliper verticaland in the center of the plug hole for greatest accuracy Disconnect battery
ground cable and all spark plug high tension leadsGround high tension leads to engineDisconnect lanyard from engine stop
switch before proceeding with the following steps1 Remove all spark plugs Install dial indicator into the magneto end (Front)
cylinder spark plug hole(The ignition timing is referenced by the mag end)3Rotate the engine to bring the piston to top dead
center (TDC) on the cylinder with the dial indicator installed4Locate TDC as accurately as possible by finding the center
of the point where there is no piston movement, and zero the dial indicator at this pointDo not move the crankshaft from
this position5 Using the dial caliper, measure the distance from the spark plug gasket surface of the cylinder head to the