nicktrx400ex
04-23-2006, 08:55 AM
i have a 400ex and whenever i get to almost full throttle it cuts out and am running no airbox and running a wb r4 exhaust come monday so do you think that 155mian and last slot down on neddle would be ok or should i do a plug check? bi need to know i think im rich but how do you change the jetting to make it leaner with out getting out of the stage 2 jet kit