10.21
ELECTRICAL
10
TIMING CHECK PROCEDURE
(NON-EFI MODELS)
1. The ignition timing check hole is in the starter recoil/
magneto housing. Remove the check plug.
NOTE: The ignition timing marks are stamped on the
outside of the flywheel. Ignition timing must be
inspected with the engine at room temperature (68° F
/ 20° C).
2. With the transmission in neutral, start the engine and set
engine speed to 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.
If the ignition timing is not within the specified range, adjust the
stator plate position as described in “Stator Adjustment”.
Stator Adjustment
1. Remove the magneto housing.
2. Remove the flywheel.
3. Loosen the stator plate screws and adjust the stator plate
position.
NOTE: Moving the stator plate clockwise retards
(delays) the ignition timing. Moving the plate
counterclockwise advances it.
Ignition Timing
30° ± 2° BTDC@5000 RPM
Flywheel
Rotation
Timing
Pointer
32
28
30
EH50PL 30
o
BTDC @ 5000 RPM
Timing
Inspection
Hole
TYPICAL IGNITION TIMING CURVE - ACTUAL ADVANCE POINT
MAY VARY BY SEVERAL HUNDRED RPM ABOVE OR BELOW 5000.
USE THE POINT OF MAXIMUM ADVANCE WHEN CHECKING IGNITION TIMING.
AdvanceRetard
Rotation
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