Yamaha 2002 TDM900 Service Manual page 413

EAS00748
10. Crankshaft position sensor rasistance
S Disconnect the crankshaft position sensor
coupler from the wire harness.
S Connect the pocket tester (Ω
crankshaft position sensor coupler as
shown.
Positive tester probe ! green/white
Negative tester probe ! blue/yellow
S Measure the crankshaft position sensor re-
sistance.
Crankshaft position sensor resis-
tance
192 X 288Ω at 20_C
(between green/white and
blue/yellow)
S Is the crankshaft position sensor OK?
YES
100) to the
1
2
NO
Replace the pickup
coil.
8-13
IGNITION SYSTEM
EAS00753
11. Starting circuit cut-off relay
S Disconnect the starting circuit cut-off relay
coupler from the wire harness.
S Connect the pocket tester (Ω
starting circuit cut-off relay coupler as
shown.
S Check the starting circuit cut-off relay for
continuity.
Positive tester probe !
blue/green
Negative tester probe !
blue/yellow
Positive tester probe !
blue/yellow
Negative tester probe !
blue/green
NOTE:
When you switch the positive and negative
tester probes, the readings in the above
chart will be reversed.
S Are the tester readings correct?
YES
EAS00754
12. Wiring
S Check the entire ignition system's wiring.
Refer to "CIRCUIT DIAGRAM".
S Is the ignition system's wiring properly con-
nected and without defects?
YES
Replace the ignitor
unit.
ELEC
1) to the
2
Continuity
1
1
No conti-
nuity
2
NO
Replace the starting
circuit cut-off relay.
NO
Properly connect or
repair the ignition
system's wiring.