Putting the pipe on the bike will cause it to run lean not rich. You prolly have a peice of trash in your carb blocking the main jet.

 

<div class="FTQUOTE"><begin quote>Originally posted by: yotatrailrunner

Putting the pipe on the bike will cause it to run lean not rich. You prolly have a peice of trash in your carb blocking the main jet.</end quote></div>



Or the plug could be burned out from it running too lean. Either way check your plug and if that doesn't fix it clean your carb.

 

hey where did you find those bbks