jetting please help!!!!!
i have a new full procircuit t-4 on my 400 i was wonderin wat jett size should i run in my bike the stock jetting runs strong but backfires a little so i no its runnin lean.
thanx
my yellow 2002 400ex has acnerfs with black nets,procircuit t-4 ,header+slipon,k&n chrome filter+jetkit 160mj and 40 pilot jet, , , renthal bars,full ac under belly skid plate and mud screen bumper,factory effex graphics+seat cover,black outerwears shockcovers,cut fenders,j&l parking brake block off itp .190 rims with 6 ply razors ,no air box lid , new black omf oil cooler air scoops. ebc sintured metel brake pads,tm design black chain slider polished throttle cover.polished side case and oil filter cover, works tripple rates w/ressies
ride red or yellow
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