Yamaha YFM90RA Model Vehicle User Manual


 
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ELEC
IGNITION SYSTEM
EBS01038
YES
NO
EBS01041
YES
NO
EBS01042
YES
NO
4. Ignition coil resistance
Disconnect the ignition coil connectors
from the ignition coil terminals.
Connect the pocket tester (
×
1) to the
ignition coil as shown.
Positive tester probe black terminal
Negative tester probe green terminal
Measure the primary coil resistance.
Primary coil resistance
0.19 ~ 0.23 at 20 °C (68 °F)
Connect the pocket tester (
×
1k) to the
ignition coil as shown.
Positive tester probe spark plug lead
Negative tester probe green terminal
Measure the secondary coil resistance.
Secondary coil resistance
2.79 ~ 3.41 k at 20 °C (68 °F)
Is the ignition coil OK?
Replace the ignition
coil.
5. Main switch
Check the main switch for continuity.
Refer to “CHECKING THE SWITCHES”.
Is the main switch OK?
Replace the main
switch.
6. Engine stop switches
Check the engine stop switches for conti-
nuity.
Refer to “CHECKING THE SWITCHES”.
Are the engine stop switches OK?
Replace the handle-
bar switch or engine
stop switch (frame).
1
1
2
3
2
2
2
3