Ignition Timing; Timing Procedure - Carbureted Engines - Polaris 340 LX 2007 Service Manual

Battery and Electrical Systems

IGNITION TIMING

Timing Procedure - Carbureted Engines

NOTE: Always verify timing of engine at room
temperature (68°F / 20°C), and at the specified RPM.
If applicable, verify the key switch is set to PREMIUM
and the TPS is disconnected.
1. Reference the timing specification chart.
2. Install a dial indicator gauge into the MAG spark plug
hole.
3. Place the MAG piston in the proper timing position,
then mark the flywheel at this point.
NOTE: Each 10 degree mark is separated by lines
every 2 degrees (not shown). Acceptable timing
variance is +/- 2 degrees.
4. Connect an accurate tachometer and a good quality
timing light to the engine according to manufacturer's
instructions.
5. Disconnect the throttle position sensor (TPS), if
equipped.
6. Start engine and increase RPM to the point specified
in the timing specifications. Hold the throttle to
maintain specified timing RPM.
7. Point the timing light at the timing inspection hole.
8. With your head positioned so there is a straight line
between your eye, the stationary pointer and the
crankshaft center line, note the relative position
between the marked flywheel line and the pointer. If
the stationary pointer is aligned with the mark made
in Step 3, or within the acceptable variance, ignition
timing is correct.
9. If the pointer is outside the variance, the stator will
have to be rotated either with crankshaft rotation (to
retard the timing) or against rotation to advance it.
10.6
NOTE: Rotate stator plate approximately the same
distance as the marks must move. In most cases, the
recoil starter housing, recoil drive hub, and flywheel
must be removed to loosen the stator bolts and
change the timing. On some engines, the stator plate
retaining screws can be accessed through the
flywheel.
10. Torque stator plate screws and flywheel nut to
Flywheel
Rotation
9923396 - 2007-2012 EDGE/Widetrak LX Service Manual
©2011 Polaris Sales Inc.
specified torque. Apply Loctite 262 (red) to crankshaft
flywheel taper if required. Refer to the Specifications
section for torque specifications and flywheel
installation procedure for engine type.