Posted April 11, 2005 - 08:47 AM
I'm not sure if this belongs here or on the jetting forum but since I'm not sure it's jetting I'll put it here. I have a 05' WR450 with the JD kit. I'm running a 68 starter, a 68 pilot, a 170 main and the JD red needle with the clip in 3rd position and I did all of the other mods. Like I said I'm not sure if it's the jetting but if I let my bike sit at idle in neutral for more that a few seconds and then hit the throttle hard I get a major hesitation before it starts reving, sometimes it will even stall. This hasn't ever been an issue when I've been riding and I assume that's because when the motor is under load it can't rev a quickly as when it is sitting at idle but it is still something I don't like to hear. Other than that it revs great. Does this sound like a jetting issue (maybe lean out the pilot?) or something else or is it normal and I don't need to worry about it? Thanks.