Yamaha YFM70RY Service Manual page 293

8. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-57.
OK ↓
9. Check the engine stop switch.
Refer to "CHECKING THE
SWITCHES" on page 8-57.
OK ↓
10.Check the lean angle sensor.
Refer to "CHECKING THE LEAN
ANGLE SENSOR" on page 8-68.
OK ↓
11.Check the entire ignition system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-1.
OK ↓
Replace the ECU.
NG →
Replace the main switch.
NG →
The engine stop switch is faulty. Replace
the left handlebar switch.
NG →
Replace the lean angle sensor.
NG →
Properly connect or repair the ignition sys-
tem's wiring
8-4
IGNITION SYSTEM