Timing Check Procedure - Polaris SPORTSMAN 600 Service Manual

ELECTRICAL

TIMING CHECK PROCEDURE

NOTE: 2004 Sportsman 600/700 ATVs were built
with either a Ducati ignition system or a Kokusan
ignition system. Ducati ignitions were installed
on all models built before February 20, 2003.
Kokusan ignitions were installed on models built
on February 20, 2003 and after. Be sure to identify
the build date of the ATV to properly identify the
style of ignition system used for proper
diagnosis purposes.
1. The ignition timing check hole is in the starter
recoil/magneto housing. Remove the check plug.
Check Plug
NOTE: The ignition timing marks are stamped on the
outside of the flywheel.
inspected with the engine at room temperature (68°F
/ 20° C).
2. With the transmission in neutral, start the engine
and open throttle until engine is at 5000 ± 200
RPM.
3. Direct the timing light at the ignition timing check
hole and check the ignition timing. NOTE: Do not
allow the engine to warm up. The timing will retard
approximately 2° when the engine is warm.
10.2
Ignition timing must be
If the ignition timing is not within the specified range,
test the ignition components for signs of failure.
The timing tag on the flywheel indicates the direction
of rotation and the scale for ignition timing.
Ducati Flywheel
Kokusan Flywheel
Direction of Rotation