Fuelpump or wire or?

Bjering · Nov 13, 2017

First issues:
Dead. Reason: a wire to the fuelpump melted on to the exhaust, cut it and put it back with a connector.

then:
Stalling and dying when i either hit on the side of the tank OR when i went in hoops ( shaking ) made it die and come back for a second.

checked wiring and all seems fine, changed old fuelfilter in tank. cleaned the Injector, sat the TPS in .605
After that it ran fine, primed and Went on 4 minutes ride.

Came to competition got suit up started it, ran in idle for 3 minutes in rain...
then stall.

started up again, a little harder to start and ran idle, but i could beat on the side of the tank and it died. Now it doesnt prime anymore.
I have let it dry and still no prime.

WTF!
Gonna check voltage out to fuelpump and then replace fuelpump. What do you Think?

Bjering · Nov 14, 2017

Tore the wiring harness, and cable was intact.
Gave 5-6V in connector and even 5-6 V in Computerbox

Reassembled it and without reason i now get 10V to the connector.

This must be a connector issue somewhere before the Computerbox???

jon andersson · Nov 15, 2017

As physical force triggered the issue it must be a bad connection or short somewhere yes. Not so fun to locate in the loom...

Known problem areas are;
- under the tank where the fuelpump is, the loom rubs against one bolt (I rounded off the head).
- next to the top engine bracket
- under the headlight mask (don't think your issue is there though)

Bjering · Nov 15, 2017

I looked around in forums and similar issues were fixed with reconnecting the 4 red-White Cables that goes from the starter relay. I did this yesterday, mine was almost off and in bad shape. Perhaps it is this that was the problem?
I am still a Little nervous that the connector to the pump only gets 10V though... what happens when it starts to rain....

Fuelpump or wire or?

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