How can I make my 750 Quick Fuel run leaner

[jefflock]

As the title says: How do I make my 750 quickfuel dp run and idle leaner. It is way to rich right now. Thanks

 

[69MOPE]

You may have to set the primary blades correctly and adjust idle speed with the secondaries

 

[70aarcuda]

simple answer is to drop the jets in carb to lean it out...and screw in idle mixture screws to lean out idle....especially if is a 4 corner idle carb..

best thing....how much cam is in engine and what kind of vacuum are you getting....and is the timing set correctly....and what number power valve is in the carb..

 

[jefflock]

I've dropped the jets several sizes. 4 corner idle set a 3/4 turn. cam is comp 242/246 507/510 only 6 to 8" vacumn 2.5 pv timing is 18 int 36 total

 

[OldmanRick]

With the mixture screws only out 3/4 and everything else seeming ok, you may be at the point of opening up the idle air bleeds a little......

http://www.quickfueltechnology.com/technical-info/carb-class-air-bleed-basics

P.S. Since these bleeds are so small, i should also recommend hitting them with a blast of carb cleaner first just incase there's a little dirt buildup.