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15. IGNITION SYSTEM Mongoose/KXR 90/50
PULSER COIL
INSPECTION
This test is performed with the stator
installed in the engine.
Disconnect the A.C. generator connector.
Measure the pulser coil resistance between
the blue/yellow and green wire terminals.
Pulser Coil Lead
Resistance:
Mongoose/KXR 90): 121.1/20°C
Mongoose/KXR 50): 80160/20°C
Note: The readings in this table are taken
with a YF-3501 Tester.
REMOVAL
Refer to chapter 14 for the A.C. generator
removal.
IGNITION TIMING
INSPECTION
The CDI unit is not adjustable. If the
ignition timing is incorrect, inspect the
CDI unit, pulser coil and A.C. generator
and replace any faulty parts.
Remove the fan cover.
Warm up the engine and check the ignition "F" Mark Advance Mark
timing with a timing light.
When the engine is running at the ignition
timing is correct if the "F" mark aligns with
the index mark within 2°.
Ignition Timing:
Mongoose/KXR 90): BTDC28°/4000rpm
Mongoose/KXR 50): BTDC15°/1700rpm
15-8