I have a 2004 Yamaha Wolverine and I am not sure where the idle adjustment screw is. I thought I knew but the screw I am turing I think might be a throttle stop screw according to my service manual. There is a screw on the left side of the carb right under the throttle cable housing. It is a goldish color screw that can be twised with your fingers. It doesn't seem to adjust the idle but if I turn it to far in or out the motor will run real bad and die out. So can someone shed some light on this and tell me where the idle adjustment is at? If I need to take pictures of it I will.

 

There is only going to be 2 adlustable screws on the carb. One is the fuel/air adjustment and the other is the idle rpm adjustment. Sounds like your adjusting the wrong one.

 

I know where the fuel adjustment screw is because I actually swapped it out with a extended one so I didn't have to use the special tool. The other screw I am turning I thought was the idle adjustment but it just doesn't seem to act like an idle adjustment screw.