Weber problem Options

[stock93]

I have a 2.0 type IV engine with 44idfs on it. I was going to sync the carbs today and noticed that even when not pumping the throttle the accelerator pump drips a stream of gas down into the throat of the carb enough that its pooling up a bit on the throttle plate. I'm getting popping back through the carbs. Timing is spot on and the valves are correctly adjusted. I take it this is a problem and they arent supposted to do this? It also smells like its still running to rich. I have 135 mains, 200 airs, 55 idles, 36mm vents, and no velocity stacks currently. Mixture screws are set 1.5 turns out. Its also hesitating from idle to around 3K rpm if I step on it hard like its flooding out. Time to put kits in the carbs? Does the jetting for the accelerator pump need to be changed or adjusted?

John

[Brett W]

Welding the carb top will not be fun. Those castings look really ugly. I built a custom oil pan off a cut up GSXR 600 flange and it was ugly welding my nice plate to casting and it was a pretty clean casting.

Brad as far as the stumble goes, get a bigger idle jet. at least a 55 or maybe even a 60. Yes it will be a little rich but hell I could run a 65 in the winter on my car. got rid of the stumble. I would toss a bigger main in there also, but fix one problem at a time. Are your idle jets clean? Pull the jets out and spray some compressed air in the idle circuit and check the idles for obstructions.

John, since you have the carb apart go ahead and pick up the smaller vents that we were talking about last week. If you want I can try welding that carb piece if you don't want to ship it to Chris. His job will probably be much better but I can stick them back together and grind it clean so it looks good. I should be over at school this weekend so give me a shout and we can hook up sometime saturday.