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Discussion Starter · #1 ·
I searched through the forum and through google and i was not able to find exactly what i am looking for maybe my wording if off. but a friend of mine has a 04 yfz450 with the r&d power bowl and fuel screw with airbox lid off and a broken end cap(still the smaller hole though). here is the problem it was sitting running fine before and when we pulled it out it wouldnt start, when it finally did with some throttle input it ran terrible almost like it was way too rich and would pop real loud when letting off. now i took the sensor out of its location then it ran and idled but now it still runs rough. could anyone help me out? thank you
 
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