So i got the K&N R-0990 and installed it on my bike and after installation, the bike would only run with full choke and when given any throttle it would die.

I have a dynojet kit so I replaced the jets with 114's and turned the idle mixture screws out to 4 turns, still have the same issue... not sure if it's running too rich or too lean.

I know my bike is a PITA but come on!


Edit: using stock exhaust.

Um arent the dynojet jets larger than the keihins for the same number? Think your main is way to big.

So i got the K&N R-0990 and installed it on my bike and after installation, the bike would only run with full choke and when given any throttle it would die.

I have a dynojet kit so I replaced the jets with 114's and turned the idle mixture screws out to 4 turns, still have the same issue... not sure if it's running too rich or too lean.

I know my bike is a PITA but come on!


Edit: using stock exhaust.

114 and idle out 4 turns is way rich for just pods.

I'm running Keihin 110 (or 108, forgot, probably 110 though) main jets, idle at 3.5 turns, and 2 shims on each needle, at an 860 ft elevation with a ****** 2-1 exhaust and slip on.

The FAQ guide if you haven't seen it yet. (http://faq.ninja250.org/wiki/How_to_fine-tune_your_jetting)

Wouldn't touch the idle screws until you get the mains dialed in.

I have factory pro jets but just for reference I went to 110 mains from the stock 105s when I threw pods on at sea level....

Alright, so i dropped in 110 jets like you guys said, and my baby fired right up. oh boy does it sound a lot meaner than before... managed to bunny hop it on the on-ramp getting on the highway lol.

You're right about 4 turns out being too much, the mixture is rich but im happy it's working now, I'm gonna tinker with that the next chance i get.

Thanks guys for all your help. Now to find a place with a cheap front tire to get rid of wobbles...

rebalance your front tire and adjust the slop out of your stem

rebalance your front tire and adjust the slop out of your stem

i dont think that's going to help, they repaved my road and the bump to one of my driveways got really sharp... i've hit it hard a few times on my ninja so i think my tire might be getting warped

pick the front end off the ground and spin the front tire to check for irregular shape. I've never heard of a warped tire, but it's worth checking for I guess.

I ordered a perelli sport demon to replace my bt 45 in the front, thanks for your suggestions but this tire really has to go, cornering is getting epic scary.