Started the car up this afternoon, and after a few minutes of running without choke, I decided to turn the tick over down abit. After pulling back the lever bit(thus making it rev higher) it stalled and made a hissing noise and what appeared to be white dust came out of the bottom of the carb... Its stalled like this before and I'm guessing its not normal? Any ideas? It's not the stalling when cold i'm worried about... more the stuff that blew out of the carb....

back fire thru the carb and it was smoke/un burnt fuel not dust

bit confused as to what you were actually doing, it was running on no choke so you opened what lever to reduce the tickover?
The levers on the side of the carb are the throttle linkage and so that would open the throttle and increase the revs?

Sean

Yes it was the throttle linkage lever thing.. the one with the tick over screw. It has been running abit fast since I put a new base gasket on the carb, so just wanted to lower the tick over speed abit... I hope I haven't done the wrong thing? So the smoke thing was just a back fire then, nothing to do with a compression problem or anything serious?

Sound like you havent tightened the carb up enough yet if you have changed the gasket - they are buggers to do in situ, as you have probably found, and never go fully tight on the first attempt.

Or, the base of the carb is warped because its securing nuts have been overtightened?

ken.

Any way its leaking from the carb base and thats probably why it spat back, was running lean and when you opened the throttle it was too much for it and may be why it was idling too fast.

taking the oil filler off helps with access to the front nuts but the nuts on the filler arent the easiest either

Sean