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View Full Version : 87 250x,jetting for an exhaust


85spraybomb
09-05-2009, 06:47 PM
mostly stock 87 250x,moose filter and a whitebros exhaust(full),what jetting should i be running?
born2ride14
09-06-2009, 01:39 PM
a 135 main and a 42 pilot should get you where you need to be with out the air box lid