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View Full Version : which jets?

Ryan137
10-22-2008, 08:23 AM
I have a 04 trx450r and i just recently got an hmf slip on. I also have a kn air filter which i want to run without a lid once i rejet. I was just wondering what size jets i should have. I have been told 180 main but just wanted to double check.
Mike/HMF
10-22-2008, 10:08 AM
That is correct. Run a 180 without the air box lid or a 125 with the lid. Adjust the fuel screw to the highest smooth idle.
Ryan137
10-22-2008, 12:08 PM
thanks alot
Mike/HMF
12-11-2008, 11:05 AM
No Problem.