my cr80 doesnt idle and blows lots of black oil out of the pipe

Honda CR 80 discussion forum:


my cr80 doesnt idle and blows lots of black oil out of the pipe

my cr80 doesnt idle and blows lots of black oil out of the pipe 
casey said 2010-10-05 03:52 
 
My bike doesn´t idle and runs very rich.. It has an fmf fatty gold pipe with p2 silencer. Has wiseco piston bored to a 102cc. Has vforce reeds and a k and n filter.. I am using the stock main jet because any higher jet makes it run way too rich. I took the pipe off and it has a good eigth of an inch of carbon build up inside from the previous owner. Will this make my bike run rich because the inside of the pipe is smaller with all the carbon build up?? Or is it something else? If you know please help me.. 
 
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