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Technical / Re: bike running rich
« on: May 20, 2010, 07:49:38 AM »All my bikes are jetted pretty well and they all will also idle indefinately, i'm open to learning new things though so could someone please explain why a 2t MX bike shouldn't idle.I know the factory Yamaha's were set not to idle; I would guess most of the factory and top pro ones did not.
Is was done for a couple reasons, to help off idle throttle response and help with jetting. My '06 YZ250 will idle for about 15 seconds (I am not in serach of that last bit of response as I can't tell the difference ) This wasn't done by leaning it to where it wouldn't idle, the pilot was set correctly but my understanding was the throttle stop screw was set for no idle.
I used to have a good article by Dick Lechien (Ron Lechien's father) on setting up the idle, I'll se if I can find it or a link to it).