jet problems

[debo]

ok...i installed the stage two dynojet jet kit on my 05 450r last night. followed every step just like it said. the main jet is a 170 and the needle is on the third clip. im running a k&n filter with the lid. it stunbles when you give it a good amount of gas but idles smoothly and runs fine at a steady rpm. what could be the problem. need help.. thanks

[warr72]

Take the lid off and stab the throttle if it doesn't stumble anymore your too rich on the main with the lid on.

[debo]

Originally posted by warr72
Take the lid off and stab the throttle if it doesn't stumble anymore your too rich on the main with the lid on.


yea it won't run with the lid off so i need a smaller jet on the main-like maybe the 165??

[warr72]

Do you have any heavy mods? Cam, ported and such.

[debo]

no heavy mods...nothing like that

[warr72]

Back down on your main and that should cure the problem.

[warr72]

But in case that doesn't get it breathing fire then upsize your pilot jet. Make sure your carb is clean as well. Hope this helps. Peace.

[debo]

thanks ill try it tonight an if it doesn't work out ill surely be back.