Quote:
Originally Posted by Vince@MSperfab
are you getting idle signal from the secondary bores?
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Fuel screws and throttle shaft idle screw impact idle, secondary throttle shaft adjustment seems more sensitive than primary.
When it was fired after running the valves yesterday it's feels normal above 2K rpm, between 1-2K is where it's weak and vague. While getting it up to temp when it would go below 1K heading to a stall, pumping the pedal lightly to catch it resulted in a backfire and little carb fire. That's leading me to think it "could be electrical, somewhat similar trait to the weak distributor ground.
After reading MSD's troubleshooting list
http://www.msdignition.com/troubleshooting.aspx I'm going to check the magnetic pickup value and verify conditions listed in timing fluctuations, and improve tach ground or just eliminate the tach right now.
My SnapOn Timing light pick up clamp isn't directional but I'll experiment with flipping it just because.
