500 keihin carb jetting

[sblt500r]

just curious what jetting you guys are running with a keihin 39mm carb.

[flotek]

68 pilot and 185 main seems to work good for 500's around here

[lt250racer]

I run a 63 pilot (I think) and a 158 main for my lt250 W/heavy mods 0-1000ft above sea level

[ERBE]

60 pilot, needle in the middle, 178 main, 110 oct 927 30 to 1 210 compression, SCR ported, damn good carb for midrange!! didnt loose any bottom end, still have a 38 PJ to get rid of.
Be a fun carb for a 250

Cant remember my needle , damn I suffer from CRS

[zillaguy89]

I have a 190 main and a 60 pilot, and I'm a tad on the rich side

[sblt500r]

i asked this, as mine is breaking up in the midrage, and also bogs on the top when i get on the throttle hard. i had a fmf ram valve but put in a stock cage with new boyesen cheapo reeds, it seems to be a bit better now. had a 190 main in it, but was too rich, went back down to a 182. pilot is a 60 and the needle is in the middle. but it still breaks up a bit in the midrange

[ReeperLT500]

200 main 55 pilot needle in the middle. I know that sounds alot but I'm at sealevel. -Mark

[stewart]

my dyno at 1000 ft showed a 178 mian 50 pilot m82n needle center clip on kx 500

[lauri]

hello- have a problem. when trying to kick start lt500 it sometimes backfires then ater still not starting the muffler is smoking hot. anybody know why, or what i can do to improve the hard time at kick starter? appreciate any help i can get.

[ReeperLT500]

Originally Posted by lauri

hello- have a problem. when trying to kick start lt500 it sometimes backfires then ater still not starting the muffler is smoking hot. anybody know why, or what i can do to improve the hard time at kick starter? appreciate any help i can get.

Try and up the idle jet. Mine was too small and it kept backfiring. Once I raised it to a 55, starting was much easier. -Mark