jets...help

[2003400EX]

i got an HMF sport Series slip-on and it came with a 165 main jet.....how do i put this in my 400...i dont have a clue as to jetting goes....help would be apprieciated

[hornetgod13]

Have you tried the "How To" section of this site? Try using the search feature as well, there are a ton of helpful threads already out there.