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Carburetor, Intake, and Exhaust / CR250 38mm Mikuni TMX
« on: August 11, 2016, 11:02:52 PM »Quote from: The_Steve_Man;69169
What year carb do you have? I have ran an 01 and 02 carbs. I kept the needle that came in them and on the 01, I changed the nozzle to an S8.
Mine had the S9 needle jet in it so Im assuming its a 01. I have already changed it to the S8 and it made a big difference. I just happened to notice on the pro circuit jetting guide for the cr250 they recommended the 6BEY30-74 Needle. Mine had the -73 needle in it so I ordered the -74 and am waiting for it to come in. I also noticed pro circuit recommended a 32.5 Pilot jet which seems kinda big to me ESR sends them out with a 25.

















