what size jet you guys run with T4 slipon?

[brian400ex]

I am running a 158 should that be alright? I did have a 150 in it. I did a plug test, but the plug still looks new? How do you guys determine proper jetting.

[brian400ex]

Also the bike runs really good. Never messed with the air filter either.

[Wheelie]

With or without the airbox lid??

For proper jetting, I go by seat of the pants feel. It hasn't failed me yet. Here's my recipe:

If you rejet and lose top speed/top end power, the quad's running too rich. If top speed/end is o.k. but the low gears don't pull like they should the quad's too lean. This applies to the main jet circuit only.

Works for me.

[RED121572]

A buddy of mine has a T4 on his. Hes running a 155 main w/lid and K&N.