![]() ![]() If you are out of sync at all, it will create a stumble. The more you screw it in, the bigger the pump shot.Īlso, proper carb sync is imperative to smooth transition. I suggest adjusting the accel pump to give a larger shot.ĭo this by turning the nut on the the tiny rod "in" a few turns. Jetting seems fat, but a stumble when you open the throttle most defintatly means Lean. Posted: Mon 8:38 am Post subject: Re: Dual Weber 40 IDFs wicked stumble Posted: Sun 7:38 pm Post subject: Re: Dual Weber 40 IDFs wicked stumble Headflow Masters New AMC 42x36mm heads w/Porsche swivel adjustersĭual 40mm IDF Webers - LM-2 - 47.5 idles/125 mains/190 air corr./F11 tubes/28mm Vents - Float height 10.45mm/Drop 32mmīosch SVDA w/Pertronix module (7.5 initial 28 total 3400rpm) Posted: Sun 5:11 pm Post subject: Re: Dual Weber 40 IDFs wicked stumbleģ200 feet with 50 idles/130 mains seems fat rich. Location: Seattle, WA./ HB, Ca./ Shizuoka, Japan Posted: Fri 8:35 am Post subject: Re: Dual Weber 40 IDFs wicked stumble I know you just did it, but the fact that it helped you need to see if you can go farther for better. Posted: Thu 9:17 pm Post subject: Re: Dual Weber 40 IDFs wicked stumbleĪlso consider trying 14mm float. Will check for exhaust leaks, though I didn't have this problem till adjusting the floats Stumble is almost gone, except now I have a backfire during decel in gear or just reving in neutral. Posted: Thu 8:48 pm Post subject: Re: Dual Weber 40 IDFs wicked stumbleĪdjusted floats to 13mm. If you`re going to do something, do it right. Posted: Thu 3:59 pm Post subject: Re: Dual Weber 40 IDFs wicked stumble Send me an e-mail to john at aircooled dot netĪnd get a 5% off code for use on one order for VW Parts ON OUR PARTS STORE WEBSITE, Please do NOT send me Private Messages through the Samba PM System (I will not see them). It's just advice, do whatever you want with it! Posted: Wed 4:23 pm Post subject: Re: Dual Weber 40 IDFs wicked stumble "At 17 got my first Volkswagen.and mastered the life long art of dragin." Ice Cube Give it gas, it falls on it face for a second then takes off.Īll accelerator jets are squirting. 010 distributor set at 28 degrees full advanced.ĭual 40idfs 32 venturis 50 idles, 135 mains, 215 airs - I tried to copy the big topic on here a few years ago about afr jetting.ĭriving in second gear, say 2000 rpm. Posted: Wed 4:21 pm Post subject: Dual Weber 40 IDFs wicked stumbleĢ021 76x92 40x35 valves, 8.5 to 1 comp, Scat C35 cam. Quick sort: Show newest posts on top | Show oldest posts on top ![]()
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