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Reducing idle on SU carb 140-160

posted by  Trev29 on  Thu Sep 14 00:58 CST 2006
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last visit: Fri Oct 17 05:56 CST 2014
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The situaion is that I reduced the dwell from 60 degrees down to 50. (Short version - tried Pertronix electronic Ignitor. Dwell programmed at 50. Problems. Decided to go back to points to get things right. Set dwell at 50 as it is supposed to be the "ideal" setting for a four cylinder.) The timing (and idle) increased. Backing the timing back down to recommended still leaves me with an idle of above 1000rpms.

I've got the throttle stop screw out all the way (I don't feel good about leaving stop screw out all the way as may lead to throttle plate sticking) and the idle bypass blocked (screw turned in fully) but idle is still high.

Any other way to adjust idle down?

TIA
--
1980 245 Canadian B21A with SU carb and M46 trans in Brampton, Ont.






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New Reducing idle on SU carb [140-160]
posted by  Trev29  on Thu Sep 14 00:58 CST 2006 >


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