Need help Jetting friends bike

[biggixxerjim]

He just bought an 05 yfz 450 with a GYTR slip and no baaffle. The kid before him had no idea how to jet the thing, it's running wayyy lean. Were at about 1000' elevation.   Thanks!!!

[kyledvor61]

He just bought an 05 yfz 450 with a GYTR slip and no baaffle. The kid before him had no idea how to jet the thing, it's running wayyy lean. Were at about 1000' elevation.   Thanks!!!

whats the evidence of it running lean? it running odd or just the pipe is red?

[biggixxerjim]

headpipe glowing after idleing for a few minutes, motor running SUPER hot.

[Flynbyu]

Do you know what jet is in the bike now?

~Brian

[kyledvor61]

headpipe glowing after idleing for a few minutes, motor running SUPER hot.

can you see it glow during the day or are you just saying at night?

i just fired it up and let it idle for a minute and a half when it was pitch black outside and the header was red to the first heat guard bolt, and thats normal.

[biggixxerjim]

The bikes curently running a 163 main and 45(maybe?) pilot. Another thing is, he tore down the carb and found out that there's no float seat to be found

So we gotta try and scrounge a flot seat up somewhere before we get any further with the jetting. Ill keep you guys posted