ORIGINAL: Flying Geezer
T
QUESTION? I'm having a little trickle of raw fuel dripping from the ventura at 1700 rpm sustained idle. Does this mean I am still too rich on the low needle? Don't want to over-lean an engine, especially a new one.
When I switch to idle-down rpm drops from 2400 to 1700 but there is about a 5 second delay. Does this this tell you anything?
Thanks in advance,
A little fuel coming out of the carb on a piston ported engine is normal. If you put a velocity stack on it, it helps reduce it. I wouldn't lean the low end to try to get rid of it.
If it takes 5 seconds to drop from 2400 to 1700, sounds like you might be too lean on the low side already. Slow to come back to idle is usually a pretty good indicator of it. Are you sure your servo is responding right? Check it with the hatch off just to make sure. If the servo is acting properly, open the low 1/12th turn and see what happens. You can always put it back.
