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bushy

Free mods jetting

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Hey guys, I've just performed all the free mods to a 2000 wr400, and was wondering what the jetting should be. I opened up the air box, added a gytr insert in the exhaust , changed the timing to yz, and did the grey wire mod. I'm at sea level. Any recomendations?

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impossible to say. Do a plug chop to work out the MJ, do the neele by feel and the fuel screw by ear

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hmmm, sounds a lot like my bike goin in on sat.......... 48 pilot, 68 air, and 168 main

-ed (i already posted one like 5 below u)

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