Wrench Turning Detectives... 1/2 turn out?

davidricci

Active Member
Dear Wrenchturning Detectives,

I have a ‘68 CB 450 stock everything, with scrambler pipes, everything rebuilt/adjusted spot on, carbs, timing, valves all triple checked, air filters from Scrambler Cycle, new coils. The bike likes to run at a half turn out on the pilot screw, any more and the plugs get black after a couple of hours.

Should I run it at 1/2 turn out on pilot?

Thoughts, advice gladly appreciatively accepted. -David
 
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