Yamaha SX150C, Руководство по обслуживанию

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9-6
E
TRBL
ANLS
TROUBLE SHOOTING FOR ELECTRIC FUEL
INJECTION
TROUBLE SHOOTING FOR ELECTRIC FUEL INJECTION 9
Items Symptoms
1. Poor starting/
Engine will
not start
1. No firing. The starter motor cranks the engine, but no firing is
generated in the cylinder.
2. The firing is generated in the cylinder, but the engine soon stops.
3. Start-up time is too long. The engine will not start-up easily.
1. Inspect the high-pressure fuel lines.
2. Inspect the ignition system.
1) Inspect for fuel
line leaks
2) Inspect the fuel
pressure
3) Inspect the
operation of the
fuel injector
4) Inspect the
diagnosis cord
Fuel pressure is
out of specification
1 Inspect the 30-A fuse
2 Inspect the high-pres-
sure fuel pump opera-
tion
3 Inspect the main relay
4 Inspect the main relay
drive’s ECU output
5 Inspect the pressure
regulator
1) Inspect the wire harness
2) Inspect the ignition spark
3) Inspect the ignition coil
4) Inspect the CDI unit output
peak voltage
5) Inspect the charge coil output
peak voltage
6) Inspect the pulser coil output
peak voltage