Yamaha R1 Series 2015, Руководство по обслуживанию, Страница: 516 / 704

SIGNALING SYSTEM
8-35
The neutral indicator light fails to come on.
The oil pressure and coolant temperature warning light fails to come on when the main switch is set
to “ON”.
The oil pressure and coolant temperature warning light remains on after the engine is started.
1. Check the neutral switch.
Refer to “CHECKING THE
SWITCHES” on page 8-177.
NG
o
Replace the neutral switch.
OK
p
2. Check the relay unit (diode).
Refer to “CHECKING THE RELAY
UNIT (DIODE)” on page 8-185.
NG
o
Replace the relay unit.
OK
p
3. Check the entire signaling system’s
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 8-29.
NG
o
Properly connect or repair the signaling
system’s wiring.
OK
p
Replace the meter assembly.
1. Check the entire signaling system’s
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 8-29.
NG
o
Properly connect or replace the wiring har-
ness.
OK
p
2. Disconnect the oil pressure switch
lead from the oil pressure switch,
and then check whether the oil pres-
sure and coolant temperature warn-
ing light comes on when the lead is
connected to the engine ground.
NG
o
Replace the meter assembly.
OK
p
Replace the oil pressure switch.
1. Check the entire signaling system’s
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 8-29.
NG
o
Properly connect or replace the wiring har-
ness.
OK
p
2. Measure the engine oil pressure.
Refer to “MEASURING THE EN-
GINE OIL PRESSURE” on page
3-31.
NG
o
Check the engine oil leakage, oil viscosity,
oil seal, oil filter, or oil pump.
OK
p
Replace the oil pressure switch.