What HAPPENED?!

[StokedButBroke]

I recently replaced the fuel pump, fuel filter, and regulator on my 92 907ie. Yesterday was the first day I have been able to drive the bike around town with no worries. When I got off work I took it to the gas station, filled up, and now it when I got back on it wouldn't start. It turns over, the battery has a charge, I just don't know.


The only thing I did differently was put plus grade gas in the tank, but I don't think that could be it........

[samandkimberly]

I'll take a guess that you dislodged either a loose tube fitting or electrical connector going to the fuel pump inside the tank with the filler nozzle when you filled up. Turn the bike on with the cap off - if fuel comes blasting out the top there's a good chance I guessed right. :-)


Sam

[Laddie907]

highly unlikely it would be fuel condition or type that would cause it to not start...

Fuel might cause it to stop, [if contaminated] but if it was running when you stopped it unless the fuel was VERY poor quality you should at least get a few "bangs"...

suggest back to basics
fuel pressure: the line should go hard under pressure when the pump spins when you turn the key. You can feel this by pinching it with your fingers.
check spark: preferably borrow a strobe
check compression

if all the above are OK then start to bleed off some fuel and look at quality

[englishstiv]

When you turn the key is the motor on the pump engaging - by that what I mean is with the ignition on (don't turn the engine over) can you here the pump spinning (building up pressure) in the tank.

I had a problem with the wires going into the plate under the tank and also where the four wires then connect to the main loom both ends had a dodgy earth and one live feed was down to the last two threads in the wire.

replaced and resecured with new connectors - problem solved.

This also occured while riding hit a pot hole engine would stop, lean in a corner - engine would stop and that was not funny?

it could be that if you can't here the distinctive humming of the pump.

[StokedButBroke]

Ahhhhhh.....

Simply a loose lead from tank to pump.
Thanks for the advice, I'll try not to panic next time.

[englishstiv]

Good news and even better no cost