R1150GS Fuel lines

[Anonymous]

#2360

Hi,Had to take the tank off to fit new heated grips, so disconnected electrics, disconnected the fuel in/out and the overflow lines.  When I reconnected everything and started her up the starter motor goes round but there doesn't appear to be any fuel getting into the cylinders (took the sparks out and had a sniff).  If I swop round the two fuel lines ( hard to believe I marked them wrong but its the only thing I haven't tried) how much damage could I cause?Any advice, even sarcastic comments welcome. [img][/img]

[Anonymous]

#9006

You only had to disconnect the two quick disconnect fuel lines to remove the tank after removing the hold down bolts.

[Dave Ross]

#9007

Do you have the quick disconnect lines fitted? If so, you may not have pushed them all the way in. They can be a pita to connect. Have you checked your battery fluid recently? It tends to evaporate in the hot weather. The lines tend to stay in their natural order, so I don't think you've mixed them up.Don't take this the wrong way, but have you checked your kill switch?

[Anonymous]

#9008

Thanks,Kill switch  - check.  Battery fluid - check.I'm interested in these quick disconnect lines you mention.  I couldn't see anything that suggested 'quick release', although the Haynes manual mentioned them for 2003 on models (mine is a 2001).  What do they look like?  I have fuel pipe all the way from the jubilee clip thingys to the tank where it looks a bit like a banjo type connection. 

[Dave Ross]

#9009

Here is a picture I found on the netThe only other thing I can think of is that you may have pinched the line somewhere, or you have some trapped air in there. Oh, is your fuel pump running?

[Anonymous]

#9010

Yes, the fuel pump is doing its usual start up stuff. Is there a test I can do to check delivery of fuel to the throttles?

[Dave Ross]

#9011

You could remove an injector to see if it sprays.However, it means you will be spraying a fine mist of petrol around and that's can cause all sorts of safety issues.

[Anonymous]

#9012

Cheers,I'll give that a go.

[2bjr]

#9013

The 2001 model will make a buzzing noise when you switch the ignition on, ( that will be from the pump and injectors ) That will tell you that the injectors got fuel in the system.The bike start up with that fuel in the system.If you swap the pypes around, the bike will not start.The other thing to look at is the right hand side fuel cable, is it still in the adjusting cradle.

[Anonymous]

#9014

I get the buzzing sound as normal but the engine just turns over and never 'catches'. I did find that the adjusting cable had got knocked out of its cradle earlier.I wonder if you're able to confirm that the topmost pipe exiting from the fuel tank is the outgoing fuel line and that it goes into the topmost pipe in my picture?  Just asking because your avatar is the Adventure.  I have a BMW workshop manual,  but it doesn't include a full fuel schematic, haven't found one on the web either.  Anyone out there got anything?

[Anonymous]

#9015

Ahaaa!Guess what I found.  Burnt out HT lead, it probably got dislodged when re-assembling the bike.  This must be the cause.

[Dave Ross]

#9016

Excellent, I am pleased you've found the problem. Fuel, compression and spark, as they say.

[Jim Young]

#9017

Good one Alex, I bet thats a relief  🙂

[Anonymous]

#9018

A big relief.HT lead on order from the UK, it was the Cheapest and quickest replacement, they promised it in 5 days.  I'm fretting now about what state the connector to the coil might be.

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