THIS has been discussed before

[mat1977]

New HMF slip-on.. Whats my best bet for jetting(ect.) in my neck of the woods(Mass.)?I'd like to keep the lid, but I'm open to suggestions.Thank you guys

[hornetgod13]

Riding temperature and altitude would help to get a more accurate recommendation however, with the lid on, I would suggest a 152K main and a 40K pilot. An aftermarket air filter could effect your jetting as well.

[mat1977]

H.G.13, what up man?, I'm only at about 200 Ft. (I think)and the temps are between 40-90 degrees.I'll probably go w/ a uni w/the lid on.Thanks for the help on this one cuz I'd like to it squared away by next weekend.

[hornetgod13]

152K/40K should be spot on. You'll have to tweak the fuel screw. Somewhere between 1 1/2 and 2 1/2 should be a good starting point. Buy your jets from www.jetsrus.com They have great prices and fast shipping.

[mat1977]

I just ordered 40/152 from them,thank you