hey mate, i think i might have the answer. The exact same thing used to happen to me. when the choke was on (cold)(automatic choke on a 21-RC) it used to do the same thing as the problem you have. it would hold itself at 1500 and drop and rise, shaking the car like a 7 litre v8 would. Also black smoke poured out, was running rich but stopped when she warmed up. So my dad showed me how to take off the carby and we noticed there was a bushing missing so we replaced it. it ran alot better. Ending up replacing the bushing again with a steal replacement later on and it has been fine ever since. Cleaning the carby in the process helped. but i would recommmend buying a carby kit and reconditioning it or getting someone else to if its not too expensive.
Mon, 01 November 2004 02:54
