I do have one here at the moment that has the opposite to the overeving problem. It will stop if its idled down completely, but idles quite well if held slightly above the minimum on the throttle. Wonder what that is?
Hi Jefffrombrisbane,
If your carby is a G4 and has the idle adjuster screw on it try screwing it in a fair bit to make it idle faster, I know on my full crank if I turn the idle screw out too far it will stall the engine when it is back in the idle position on the throttle control. If you have an LM carby without the idle adjuster then I guess it gets a bit tricky. You may have to take the carby off and check it out, it may be the opposite of what we have been talking about here, if you have any extra washers in the carby you might need to take one out or something to bring the idle up a little bit?
I also don't go by the original markings on the throttle control housing, mine idles nice and slow and it's just a tad further down than what the throttle control says is the "start" position. It may have been more accurate for idle there when they were new, but after 30 years or so things just wear. As long as you can get a good slow idle somewhere that's all you need.
I hope this helps mate.
Cheers!
