Hey everyone. I just turned 1100mi on my 2001 F4i and my buddy who was riding behind me said he saw smoke coming out of the exhaust everytime I got all over it. I have a Two Bros. slip on, stock air filter, and I am in North Idaho where the elevation is around 2800ft. Is it just running too rich? I am in the process of buying a PC III. Hopefully I don't have a bigger problem. Thanks.

 

What does that mean? When you gave it some throttle, leaned over, please clarify.

 

Sorry, when I accelerated. I also rev it in neutral and I can see a little come out as the RPM drops off.

 

yeah mine does the same thing. i heard its just running to rich which isnt a problem i dont think that pcIII will def help your problem. if you put a paper towel by the pipe youll see black dots on it and it smells and looks like gas. just my opinion

 

I had the same problem. I put a new PCIII USB on and it did help but it still does it a little just not as much.