View single post by subwoofer
 Posted: 09-24-2013 05:24 am
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Joined: 04-01-2008
Location: Sandefjord, Norway
Posts: 583
First of all, are your carbs accurately balanced? I use a CarbTune II ( for this purpose.

If memory serves me correct, a half decent starting point is about 4 turns out on the idle screws. Turn all of them all the way in and count the turns as you back them back out.

If you have access to a CO meter, adjust for idle around 2.5% CO. It is rich, but needs to be rich to avoid trouble at pickup.

I assume you have checked your ignition and cam timing? If not, this is absolutely the time to do so. Also check for vacuum leaks.