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2009 450R - Kill Switch - Fuel Pump- Injector

Posted: Fri Mar 15, 2019 7:15 am
by Ekim
When kicking the engine over, while holding the kill button depressed, will the fuel pump still, operate, and / or will the fuel injector still, inject fuel?

Re: 2009 450R - Kill Switch - Fuel Pump- Injector

Posted: Sat Mar 16, 2019 2:14 am
by Aussiecrf230
Do you have a wiring diagram?
Some systems stop engine by cutting the fuel some by the spark.
Either way is effective.

The wiring diagram will hopefully give you some idea.

Re: 2009 450R - Kill Switch - Fuel Pump- Injector

Posted: Sat Mar 16, 2019 5:31 am
by Ekim
Thank you, Ray, Aussiecrf230,

I do have a wiring diagram in the service manual; I'll look closely, at that.

Mike

Re: 2009 450R - Kill Switch - Fuel Pump- Injector

Posted: Sat Mar 16, 2019 7:39 pm
by Aussiecrf230
Some systems actually cut both via the ecu. You could check if voltage is present on pump connectors when kill switch is pushed.
You would have to think that fuel would be cut otherwise you could end up with a flooded engine.

Re: 2009 450R - Kill Switch - Fuel Pump- Injector

Posted: Sun Mar 17, 2019 4:34 pm
by Ekim
Yes, I agree; one would think fuel would be cut off. Thanks. .... I haven't yet 'cracked the book'. ;-)