10-18 ELECTRICAL SYSTEM
IGNITION SYSTEM
NOTE:
The ignition cut-off circuit is incorporated in this ECM to prevent over-running of engine. If engine rpm
reaches 8 000 r/min., this circuit cuts off ignition primary current for all spark plugs.
TROUBLESHOOTING
CKP
sensor
Cam position
sensor
Wave form
arrangement
circuit
Power source
circuit
Engine stop switch
Ignition
fuse
Ignition
switch
Main
fuse
Battery
#1
#2
CPU
ECM
Wave form
arrangement
circuit
Engine
coolant
temp. sensor
Throttle
position
sensor
CVT control
unit
Under no load, the engine can run over 8 000 r/min, even if the ignition cut-off circuit is effec-
tive, and it may cause engine damage. Do not run the engine without load over 8 000 r/min at
anytime.
No spark or poor spark
Check the ignition system couplers for
poor connections.
Correct
Loose
• Improper coupler connection
Continued on next page
Make sure the engine stop switch is in the “RUN” position
and side-stand is in up-right position. Grasp the front
or rear brake lever. Make sure the fuse is not blown
and the battery is fully-charged before diagnosing.
Summary of Contents for AN650 2002
Page 1: ......
Page 47: ...PERIODIC MAINTENANCE 2 29 ...
Page 124: ...ENGINE 3 73 POSITION OF CAMSHAFTS AND SPROCKETS 15 1 1 2 2 3 3 ...
Page 137: ...CVT 5 3 Remove the CVT mounting bolts Remove the CVT assembly ...
Page 425: ...SERVICING INFORMATION 11 21 FUEL TANK MOUNTING ...
Page 426: ...11 22 SERVICING INFORMATION FUEL TANK MOUNTING Only for E 28 ...
Page 462: ...Prepared by July 2002 Part No 99500 36110 01E Printed in Japan 464 ...
Page 463: ......