So I've been running a little rich and since cold weather is coming around my area, I need to adjust the carb to make it run more lean so it won't flood when cold weather comes around. So which screw should be turned to make it run more lean? This carb is a Mikuni also. (Sorry about bad/dirty picture, this one is old.)

 

Any ideas on which is air or which is fuel?

 

find a minuki carb manual online or something.

but if its anything like a weber then its the two that are at the base of the barrels that look like they're all the way in.

 

Okay, that's what I was thinking. I will mess around with them and see what happens. Thanks.

 

You aren't really going to make the carb "run" leaner or richer by adjusting screws. That will mostly affect how rich orlean you'll be at idle. (Maybe that's what you're going for) But that adjustment will have little effect on the rest of the rpm range.

 

Yeah, that's what I'm going for. At idle it's running rich. I'll mess around with it and see what happens.