Backfire and poor idle after fuel tank swap

[mpgscott]

Hi folks,

So swapped over to a gsa tank including the new pipework including injectors.

Thought initially it wasn’t running correctly because downpours and exhaust were not fitted.

Got it all fitted now and when I start I need to give it throttle to run. Adjusted the isle on the cable but it’s got like a backfire as you release the throttle.

I’m thinking it’s possibly the throttle bodies being synced but should I refit the original injectors?

There is no fuel leaks all seems ok.

Any thoughts experiences from anyone?

Cheers
Mark

 

[Mad Hatter]

You will have unseated one of the cables. Check at the throttle body end and at the splitter under the tank

 

[Santa-2512]

You will have unseated one of the cables. Check at the throttle body end and at the splitter under the tank

In one

 

[wessie]

don't see one for ages then two come along on the same evening!

 

[mpgscott]

You will have unseated one of the cables. Check at the throttle body end and at the splitter under the tank

Will do, so its an electrical cable your suggesting? Ta

 

[wessie]

Will do, so its an electrical cable your suggesting? Ta

no, throttle cable - see this thread and post 7 for a picture

Post in thread 'Advise required'

Jan 18, 2025

Sure this is your problem.

• ynotbiker

 

[mpgscott]

Thanks everyone, that’s it the routing of the fuel hose to injector was pushing against the throttle body cable and pushing it back.

The pic you will see the fuel line now routed behind the throttle cable. Before it was in front.

Removed and rerouted and it’s running sweet as a nut.

I pushed against the throttle cable as it was before and it started to pop and bang so was definitely the problem.

Thankyou guys.

 

[mpgscott]

no, throttle cable - see this thread and post 7 for a picture

Post in thread 'Advise required'

Jan 18, 2025

Sure this is your problem.

• ynotbiker