Just installed a JD jet kit in my wr450 05 (200km on the clock) I set it up as per the instuctions
MJ 170 Blue #4 rest stock i have opened the pipe and all to normal mods
the mix screw is about 3 turns out to run right as less and the rev's stay up for a second or too (to me that sounds lean)so i think i need to change the pilot jet as the rev's go up if i pull the choke and it doesnt stall when it warm with the choke on.
it seens to run ok at high rev's but it a real dog at low rev's (idle)
I have no bog that i can tell.
it will stall if a realy wack the thottle but i dont have a problem when riding
but its hard to start even when warm, Sounds too lean to me if anyone has some advice on how to attack this problem PLEASE feel free help