View single post by Dan (Florida)
 Posted: 09-17-2013 03:03 pm
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Dan (Florida)


Joined: 03-16-2005
Location: Ormond Beach, Florida USA
Posts: 97
If it's anything like the Webers, the throttle butterfly has to be completely closed in order to work .  If only slightly open the low speed jet adds to the mixture.  At idle the throttles are completely closed and working off of the idle jets. the idle screw should not touch the stop.  Something I have found is that above idle the idle screws continue to contribute fuel clear up to where the main jets kick in, so I guess that the idle screws need to be as lean as you can make them (in) to keep low speed mixture from being too rich.   A "Gunson colortune" can be a  useful tool  for setting mixtures.

Let us know your findings.