Hi guys,
Having a play with the red under the bonnet of my new toy. The engine runs a little rough when moving but nothing shocking, but when I pull up at the lights and place her in neutral I have to pull out the choke as I clutch in to avoid her stalling when idling. She also goes to stall if I have the clutch in for too long while moving. I've turned up the idle speed on the carburettor which helped but didn't fully overcome the problem - maybe it needs to be up even further?
Any other ideas?
Cheers,
James
EDIT: I have to punch the choke back in as I pull away or the motors very very sluggish, flooding?
Stalling at idle
Hard to diagnose engine problems as there are so many causes and effects but a very simple start , based on your problem description , would be to get an air blower and unscrew the mixture screw on the carby baseplate ( assuming you are running the standard red motor carby ?? ) and then blow compressed air into the mixture screw hole.
Shit in the idle mixture circuit ( no , don't actually do it !!
) can block the idle feed passage and cause idle problems. Usually can be fixed by blowing air into this circuit to dislodge the offending bit of crap blocking, or partly blocking, the circuit.
Could be other causes sure, but start with this one as the carby doesn't have to be taken off.
You will have to re-adjust the idle mixture setting again, if you don't know how, just ask here.
Shit in the idle mixture circuit ( no , don't actually do it !!
) can block the idle feed passage and cause idle problems. Usually can be fixed by blowing air into this circuit to dislodge the offending bit of crap blocking, or partly blocking, the circuit.Could be other causes sure, but start with this one as the carby doesn't have to be taken off.
You will have to re-adjust the idle mixture setting again, if you don't know how, just ask here.
I can't think what to write here so this will do.
JimmyJazz wrote:Cheers for the reply. As far as I know its a standard red carby. I assume when you say unscrew you mean take the screw out? The offending bit of crap wont end up in my cylinders? I'll give this a shot next time I get the chance.
Yep, unscrew the idle mixture screw all the way out.It will look like a normal threaded screw with a sharp point, and don't lose the little spring that fits around it or you will be forever having to continually adjust the setting.You could count the number of turns it takes to unscrew which would give you a"ball park" indication of how much to screw it back in but after you blow out the crap that is blocking/partly blocking you will most likely have to readjust the mixture setting to a different amount of turns than when you first unscrewed it..... if that makes any sense......... 
Anyway, whatever is blocking the idle passage ( if that's what the problem is?? ) would be most likely only a tiny speck of dust like matter about a poofteenth of an inch and so small that it won't hurt the inside of your engine if it was to make it's way into the cylinder.
It would either burn up in the combustion process or be swept away very quickly out through the exhaust in a few engine revolutions.
I can't think what to write here so this will do.
The stalling at idle problem has been fixed. She doesn't seem to have the grunt that she did before I did that but I guess that just means she's running a little lean? Thanks again. James