I recently picked up the 2006 Grizzly 660. I bought a dynojet kit and pipe for it. I've got the parts on the carb replaced and the pipe is on and the only thing left I have to do is readjust the fuel mixture screw. but i can't find it!

The pic in the jet kit directions points out where it's at, but it's not there. It looks like it should be there, but instead it's a flat piece of metal filling a hole. It has a tiny hole in the center. It's definitely not a screw.

One person has told me that they think I have to drill out that metal cover to get to the screw, but not for certain.



Thanks,
dw

 

Im not sure if your quad has the same kinda carb as a sport quad but my fuel/air screw is on the carb right below where the airbox attaches to the carb. Brass standard screwdriver screw.

 

Got this figured out, so passing along if anyone has to go through this like I did.

The flat brass piece with the tiny hole in it needs to come out. The mixture screw is just underneath, so have to be extremely careful. I was told the best way is to put a small screw through the hole enough to grab, then pull it out by pulling slowly with a pliers or hammer claw.