If u can....lift the tank when the pump is stuck. Test voltage at the terminals. Thatll tell u if its the pump thats failing or if its something else and its cutting power to the pump.
Great idea! Thanks ...If u can....lift the tank when the pump is stuck. Test voltage at the terminals. Thatll tell u if its the pump thats failing or if its something else and its cutting power to the pump.
A few things to check.I'm having problems with my race bike.
It is hit or miss when I turn the key. Sometimes the rule pump comes on, sometimes it does not. Everything else lights up and is normal.
I tried wiggling all the connections and I can't figure it out?
Any suggestions?
It's not the ECU, I had replaced it and the problem continues.
When I'm all leathered up and about to get out on the track I turn the key and the starter cranks, but no fuel pump.... No starting...
I have to take my helmet off and put my ear to the tank to listen for the humm of the fuel pump and keep turning the key on and off without doing anything else, just the key before hitting the starter.
Any suggestions?
Will do that. NO error codes. It just lights the dash but I don't hear the buzz of the pump.A few things to check.
1) Ensure there is no corrosion between the contacts and the leads.
2) check the crimp of the contacts.... see if you can compress them a bit (very slightly) to make a more solid contact pin to pin.
3) Verify the retaining mechanism on the connector bodies is still good. if the latch backs off slightly, it may make for intermittent contact.
Once you've done all of that, it may be time to pull the pump and do an operational check on it outside of the tank.
Could also be a flaky relay that is supposed to provide power to the pump; look at all the connections in that path as well.
Come to think of it the pressure regulator that shuts the pump off when the rail is at the right pressure..... you might want to see if that's okay.
Do you get any fault codes when this happens?
I don't think the starter motor will have power available until you hit the starter button. The ignition switch should not directly energize the starter.... it will have to go through a few relays before power gets to the starter.OK, I'm still learning electrical but I am a quick learner.
I have three wires coming off the starter motor. I want to test it for power when I turn on the ignition.
Wires are Black / lt.blue stripe
Black / yellow stripe
Wite / red stripe
Which wires do I connect to the red and black multimeter and what setting on the meeter?
I have the manual which walks through the test for the starter relay. I will do that first.
I don't think the starter motor will have power available until you hit the starter button. The ignition switch should not directly energize the fuel pump.... it will have to go through a few relays before power gets to the fuel pump.
Ignition>idiot switches (neutral, side stand, clutch> (ECU?) > starter button > relay> starter solenoid > motor.
Speaking from experience. Can't get better than that.Mine has done this for about 2 years. It's the fuel pump relay I'm pretty sure. I just give the tank a "WHACK!" and she goes... bzzzzzzzzzrrrrrr...
My next guess would be a chattering relay.New development...
I removed the wire for the fuel pump. And the bike still made the buzzing sound when I turn the key, and it is still hit or miss.
QUESTION: What makes the buzzing sound when you turn the key if its not the fuel pump?
And would that be what is wrong with the bike? IM not into fixes that require me to slap the tank like a cheap whore when I'm leathered up.
I'm guessing it's a relay too?My next guess would be a chattering relay.
The one that energizes the pump. If you can figure that out, the check is to see if the relay will change states when you put 12 VDC across the coil. If it makes a solid 'click' without the buzzing you're hearing, the coil is okay.I'm guessing it's a relay too?
Which one, and how do I check it?
Is it the fuel rail one? Seems to b comming from that area?
I figured out where the buzz is comming from.Dig into it and hear from where exactly the buzzing is comin from.