Yamaha YFM7FGPW Service Manual page 419

EBS01041
7. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
YES
EBS01042
8. Engine stop switch
• Check the engine stop switch for continu-
ity.
Refer to "CHECKING THE SWITCHES".
• Is the engine stop switch OK?
YES
NO
Replace the main
switch.
NO
Replace the left han-
dlebar switch.
9 - 14
IGNITION SYSTEM
EBS01040
9. Crankshaft position sensor resistance
• Disconnect the crankshaft position sensor
coupler from the wire harness.
• Connect the pocket tester (Ω × 100) to the
crankshaft position sensor coupler as
shown.
Positive tester probe → green/yellow 1
Negative tester probe → black 2
G/
1
• Measure the crankshaft position sensor
resistance.
Crankshaft position sensor resis-
tance
459 ~ 561 Ω at 20 °C (68 °F)
• Is the crankshaft position sensor OK?
YES
– +
ELEC
Y B
2
NO
Replace the crank-
shaft position sensor/
stator assembly.