Posted by Greg S on October 16, 2007 at 00:33:35:

In Reply to: Tuning Issues: 2.25L Petrol posted by William Matthews on October 14, 2007 at 22:28:25:

1) Single bore Weber? Get rid of the piece of junk.

2) Dirt in the idle system. Unscrew the jet (if that's what it is) just above the low speed mix screw. There are three tiny holes around its circumference. The end pulls off it ( I know, it doesn't look like it) and there is probably a spec of debris inside there. That was the case with mine. Don't try reaming the holes, please note staged advice when you see it. You need the choke on a bit at low speed to suck more fuel into the mix because something is making it difficult for the fuel to work its own way through the idle speed carb.