Idling

John S · Jun 23, 2016

My 2.25 petrol engine has developed a tendency to stall when I pull up. I've cleaned and checked the points, plugs, air filter, engine breather system. The carb is a Weber 345 and all looks ok. I tweaked the mixture screw and thought that had solved the problem. Still doing it. Could it be defective vacuum advance, leaking vacuum pipe. Ideas welcome.

blue beasty · Jun 23, 2016

Blocked idle jet?

They are supposed to be a little prone to it.

Disco1BFG · Jun 23, 2016

blue beasty said:
Blocked idle jet?

They are supposed to be a little prone to it.

My first thought too.

Grem · Jun 23, 2016

Does it do it only immidiately after you drive it hard? Fuel level dropping due to insufficient supply or needle valve too restrictive

John S · Jun 23, 2016

Thanks guys. I was reading about this online. I'll investigate and let you know how it goes.

John S · Jun 23, 2016

Grem said:
Does it do it only immidiately after you drive it hard? Fuel level dropping due to insufficient supply or needle valve too restrictive

Yes it tends to happen after a good drive.

Grem · Jun 23, 2016

I meant if you were full throttle up a hill with traffic lights at the top.

If it still does it after driving normal load and revs for more than 10 seconds then my question is irrelevant

John S · Jun 23, 2016

It's irrelevant .

John S · Jun 26, 2016

Took out the idle jet and gave it a good blow and clean. Problem sorted. Thanks guys it was beginning to stump me and not so familiar with the Weber carb....up to now . Lots of info on these carbs on the web. Cheers.

Idling

John S

Well-Known Member

blue beasty

Leaks an prone to bits dropping off

Disco1BFG

Well-Known Member

Grem

Active Member

John S

Well-Known Member

John S

Well-Known Member

Grem

Active Member

John S

Well-Known Member

John S

Well-Known Member

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