think jetting is alright?

[yamablaster24]

K i got a 2001 416 with hot cam, portting, Wiseco High comp piston. Got a 160 main and 38 pilot. Starts right up in 20 degree weather with choke. within 2 or 3 seconds. Plug isnt even new. Some unspent exhaust gases are found in the muffler sometimes but nothing big. Has never backfired. Do you think i should worry about doing a plug check or just run it?

[2004exrider]

If its a keihin 160 it sounds maybe a little to lean, i'd do a plug check any ways just to be sure it wouldn't hurt.

Jimmy

[K_Fulk]

You should be fine.

[400exstud]

I am running a 160 with only my exhaust but I know I am a tad rich. I would try a 165 if I were you and go from there. Who knows, maybe you'll get a bit more out if it.