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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........

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

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

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.

Ahhhhhh.....

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

Good news and even better no cost