would this dial-a-jet be ok with it or will it be to lean.. i jus heard the dial a jets run kinda lean on most atvs but the do work well

 

love my dial a jet! I run 125- 6500 elevation with ease. My only words of advice is buy the snorkle kit with it. Good luck!

 

thanks for the info but anyone else that can clear up how they work on a 416ex..

 

a little help guys.. anyone used these on 416 or 440 exs???

 

http://www.thunderproducts.com/dial_a_jet.htm

Copy and paste the link above. I have these on ALL my toys (yes I have a 400ex (440 big bore)) You can install it pro style, like the pic on the link above. Or just tap the intake boot befor the carb. I have done both, boot is the easiest, and only way I have done it for years now. You MUST follow the instructions to the tee. Every bike is set up different, so every dial a jet set up is different. hope this helps.

 

I have one you can buy, not sure where i threw the instructions to. I took mine off, I got it tuned on my bro's chassis dyno and it didn't make a difference so I took it off. If anyone wants it make me an offer it's just sitting in my tool box. already has the tapped bolt that goes into the bottom of the carb. Will need a new large zip tie and instructions. That's it.