Repair & Maintenance 94 TRX 200 Idle Speed December 28, 2015 Probably a stupid question but for the life of me I can not find the idle adjustment on my ATV. Normally you’ll see the idle adjustment screw in the center of the carb. Not on my carb, doesn’t appear to adjustable….Can anyone help me? Thanks Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related