I've been having a idle problem with my 32/26 DGV Weber. This damn thing WILL NOT idle right. It's only at idle. Once it goes above ~ 1000 - 1200 rpms, clears up. I have the idle mix screw at SIX turns out. And it still stalls sometimes. It's running lean, not rich. Not pulling enough fuel from the idle ports. Engine vaccum is at like 12 in/hg, but I believe that is from ***** idle. I've gone 2 sizes larger on the idle jets, to no avail. I have .065 main and .060 secondary at the moment. Had .070 for a while.
I have had the carb apart many times. All new seals, pwr valve, ect. Parts were all soaked in carb cleaner overnight.
Fuel/air passages blown out with compressed air. Ran the sniffer on it, and it's too lean at idle, and too rich at part throttle [from idle screw too far out]. *Butterfly valves looked good, and appeared to seal fine.*
85 22R auto. Just rebuilt this spring.
Mods on engine
EB large port head
EB 270* cam
Oversize valves
cyl bored .020"
Above carb with Redline adaptor kit.
I have no vaccum leaks. None. ZERO. Not even the brake booster.
1 yr old fuel pump [stock]
1yr old fuel filter
Float level is good
Coil/dist is good. Even checked on ocilliscope.
NGK plugs/wires
Compression test was good. I did it months ago, and can't remember exactly what it was, but it was within 10psi across the board.
Does anyone have any other ideas? Before I drive this damn thing off a cliff?..... <img src="/forums/images/graemlins/zombie.gif" alt="" />
The only thing I can think of at the moment is maybe I need larger air corrector jets/emulsion tubes. But I'm sick of throwing parts at it. Hopefully someone with more knowledge than me can give me some advice.