Starting car for first time, baseline setting on carbs |
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Starting car for first time, baseline setting on carbs |
MattR |
Jul 14 2005, 04:30 PM
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#1
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Advanced Member Group: Members Posts: 3,279 Joined: 23-January 04 From: SF Bay Area Member No.: 1,589 Region Association: Northern California |
Im about ready to start my 914 for the first time and break in the motor. I have a set of 40 idfs on there that im guessing are out of adjustment. How many turns out should I set the needles at to get it to fire? I know I have to tune it during break in, but Im just trying to get it to start up now. Hints? Thanks.
Edit: i should have clarified. This is a 2056, dual 40 idfs, raby split duration cam. |
lapuwali |
Jul 14 2005, 04:53 PM
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#2
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Not another one! Group: Benefactors Posts: 4,526 Joined: 1-March 04 From: San Mateo, CA Member No.: 1,743 |
You should start with 55 idle jets. Set the idle mixture screws to 2.5 turns out from lightly bottomed. Make sure the linkage isn't hanging up, and that the throttle stop screws aren't touching the throttle arms when closed (so the throttles really close fully). You'll need to keep your foot on the gas for it to idle, but the idle won't race away to high rpm, either. Run it for a bit, then set the idle speed with the throttle stops. Sync the carbs and set the idle mixture.
The mains, airs, and emulsion tubes shouldn't matter during break in, as you'll be on the idle jets the whole time. If you haven't already blown out the carb's passages with air, do so first. If you haven't already cleaned your fuel tank, do this first. Use two fuel filters. |
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