Yamaha YZF-R25 Service Manual page 354

8. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-77.
OK ↓
9. Check the gear position switch.
Refer to "CHECKING THE GEAR
POSITION SWITCH" on page 8-93.
OK ↓
10.Check the clutch switch.
Refer to "CHECKING THE
SWITCHES" on page 8-77.
OK ↓
11.Check the engine stop switch.
Refer to "CHECKING THE
SWITCHES" on page 8-77.
OK ↓
12.Check the start switch.
Refer to "CHECKING THE
SWITCHES" on page 8-77.
OK ↓
13.Check the entire starting system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-5.
OK ↓
Replace the ECU. Refer to"REPLAC-
ING THE ECU (engine control unit)"
on page 8-81.
ELECTRIC STARTING SYSTEM
NG →
Replace the main switch.
NG →
Replace the gear position switch.
NG →
Replace the clutch switch.
NG →
• The engine stop switch is faulty.
• Replace the right handlebar switch.
NG →
• The start switch is faulty.
• Replace the right handlebar switch.
NG →
Properly connect or replace the wiring har-
ness.
8-9