jetting

[01440ex]

have an 01 400ex...stock exhaust and air filter...what jets should i run...and im running cheap fuel right now....anybody got a clue

[01440ex]

it also has a 440 kit in it

[CSR400EX]

i had an 440 kit in my old 400EX with a stock exhaust, Pro Design Pro Flow kit, and the choke removed and ran a 170 main, 45 pilot. this is a good starting point

also what compression ratio piston is the 440 kit, i ran a 11:1