1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 329Get this manual
ELECTRICAL Ignition Timing Adjustment 7Scribe line, aligned with the pOinter, across face of coupler89Verify proper piston position by repeating steps 5Reposition pointer if necessaryRemove dial indicator and install spark plug
10Connect timing light to the PTO cylinderStart engine and increase engine RPM to 3000
Degree Wheel 11Point timing light at pointerUsing the same sight line as when you dial indicated the mark, note the position of the scribed mark in relation to the pointer12If marks do not align, dial indicate the exact position sighted on the couplerCompare dial indicator reading to Degrees to Piston Chart on page 7.30 If out of specification 1Remove inner and outer magneto coversmore retarded Upper markmore advancer-=: Advance