Starting problems

[mad-dawg]

Bit of advice please.
I had the tank off to change the fuel filter. re-fitted it and went for a ride.
This weekend I was drinking tea in the garage as you do and noticed that the rubber gaskets between the tank and infill panels were not seated right, out came the spanners lifted the rear of the tank seated the rubbers lowered the tank and tightened the bolt. Bike will not start!!
With ignition on fuel pump runs up and there is a good spark but no fuel to injectors. Is there a likely multi plug fault or trapped wire that I need to check?. I lifted the tank off again, checked to make sure there were no trapped wires, re-fitted the tank and it fired and ran fine.
I dont want to get sttranded by an intermittent wiring glitch so any pointers will be very welcome.

 

[sockpuppet]

Did you check the RHS throttle cable?

 

[mad-dawg]

Checked that first.

 

[kanhulk13]

I don't remember any electrical wire when removing the tank.

Quick release fuel lines? Pull out and re-attach until you hear the 'click'
Vacuum hoses on the right side?
Throttle cables twisted over the pulley?

 

[mad-dawg]

Sorry should have said its a 96 R1100GS, there is a multi plug which powers the fuel pump and fuel gauge sender but the pump was priming as normal when the ignition was on. I checked the pump and it worked fine but no fuel at the injectors.
The bike starts and runs fine now but I wondered if there was a common fault with the wiring under the tank that I can check out.
It drives me mad when there is a fault that cures itself cos I know it will return at the worst possible moment.

 

[sockpuppet]

Couls shifting the tank have moved some water around in it?

 

[Stewart H]

My old fragile type quick connects were both fitted the same way round, allowing wrong connection, that one had me stumped for a little while.

Stewart

 

[mad-dawg]

Thanks for the input guys.
Dont think it was water in the tank as there was fuel at the quick connects (pumping out with the ignition on) but it might be worth pumping the fuel out of the tank and doing a re-fill with new petrol.

If you switch the quick connects what difference does it make? I have one line with a tape band on both ends to help prevent this but would this give the symptom of no fuel at the injectors.
I will have a look at the witing schematic and see if the injector pump is fed from a connector under the tank.

 

[Stewart H]

The fuel pump is fed from the four way block connector under the black panel on the Right side of the bike, that is the one you take apart to get the tank off, one of the wires in mine did break off.
Stewart

 

[mad-dawg]

My old fragile type quick connects were both fitted the same way round, allowing wrong connection, that one had me stumped for a little while.

Stewart

I think I am more stupid than i first appear!
Done a bit of searching and the two fuel lines are a supply and return not 2 supply as i wrongly assumed.
It is obviously very possible that I have connected the QD the wrong way round and then spent 2 hours trying to start the bike, only rectifying the fault by chance. DOH!

 

[Stewart H]

I put my new ones in in opposite directions to stop me from doing that again, so the bike runs now ?
Stewart

 

[mad-dawg]

Yes it runs fine thanks