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YAMAHA EXHAUST VARIABLE VALVE SYSTEM wELEC(
Check the entire EXUP system for connec-
tions. Refer to the "WIRING DIAGRAM"
EXUP control unit.
Procedure (2)
1. Fuse "MAIN/IGNITION"
Remove the fuse "MAIN" and "IGNITION".
??
*Connect the Pocket Tester (5.? x 1) to the
fuse "MAIN" and "IGNITION".
Check the fuse for continuity.
??
2. Battery
Check the battery condition.
??
*Refer to the "BATTERY INSPECTION"
section in the CHAPTER 3.
Specific
Gravity:
1.280 at 20" C (68" F)
3. Main switch
Disconnect the main switch coupler and lead
??
from the wireharness.
??
Check the switch component for the con-
tinuity between "Red @ and Brown @ ".
Refer to the "CHECKING OF SWITCHES"
section.
I
CONTINUITY
CORRECT
NOCONTINUITY
Replace fuse "MAIN" and/or "IGNI-
INCORRECT
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