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10.31
ELECTRICAL
10
Crankshaft Position Sensor Gap
Measure trigger coil gap with a feeler gauge. The gap should be
0.4 - 1.2 mm (0.015 - .047 in.).
Ignition Troubleshooting
No Spark, Weak, or Intermittent Spark
• Spark plug gap incorrect
• Fouled spark plug
• Faulty spark plug cap or poor connection to high
tension lead
• Related wiring loose, disconnected, shorted, or
corroded
• Engine Stop switch or ignition switch faulty
• ETC switch misadjusted or faulty
• Wire harness or connections wet, corroded
• Poor ignition coil ground (e.g. coil mount loose or
corroded)
• Incorrect wiring (inspect color coding in connectors
etc)
• Faulty ignition coil winding (measure resistance of
primary and secondary)
• Sheared flywheel key
• Flywheel loose or damaged
• Faulty ECU
Ignition Output Test Using Gap Tester
Re-connect all wires. Disconnect spark plug wire from the spark
plug. Connect gap tester lead to engine ground and the other to
the ignition coil primary wire leading from the coil. Crank
engine and check output. Spark should jump a 1/4" (6mm) gap.
Reconnect coil wire.
Crankshaft Position Sensor Gap:
0.4 - 1.2 mm (0.015 - .047 in.)
CPS
Interrupt
Table 10-1:
TEST
CONNECT GAP
T
ESTER TO:
R
EADING
Spark Gap
Output Test
Spark plug lead and
ground
White/Blue spark
jumps 1/4" (6mm)
gap