Took the straight pipes off and installed some stock ones.

I'm smelling fuel at stops.

She runs fine, no leaks, but I get the gas smell.

Could the new pipes be causing a rich running condition?

 

yes they could

 

So, is it a carb adjustment I need to do?

 

Turn the mixture screw in on the bottom of the carb. Bottom back with a flathead. Check out harley performance . Com or night rider websites they have a detailed write up

 

If it's a cv carb remove the stock screw and replace it with a knurled one. Makes adjustment easy and no more burned knuckles.

 

Here is a good writeup on it:

http://www.nightrider.com/biketech/hd_cv_mods.htm

The more open the pipes are the more air flows, the more air that flows the more fuel you have to add or it will be a lean mixture. Since you put the stock pipes back on you reduced the amount of air flowing through the engine so you must also reduce the ammount of fuel. First step is the idle mixture screw adjustment, if that does not do it then you will have to look at the jetting.

Doug

 

Took it for a nice ride tonight, ran well. "Coughed" a couple of times though.

I'm not sure I should adjust it. How much should I turn the idle adjustment screw if I do?

If it's running too lean, how will I know?

Sorry for all the newbie questions.

 

Thread the screw in until it bottoms, go easy so that you don`t damage the needle (fragile).

Back the needle out about 2-1/2 turns, that should give you a pretty good starting point.

I also suggest that you remove the float bowl and clean out the bottom of the carb, you may simply have some debris preventing the needle from seating, causing an overflow of the carb.

 

Thanks, I'm gonna give it a try tomorrow.

 

Took a look this morning and found she already has a knurled screw!

Easy to turn too. I'll give the adjustment a try tonight.