ok yeah now im with you. its the actual manifold that mounts with 2 bolts and not the carby which is held in the manifold with a hose clamp. if you need a rebuild kit for your carby i know where you can get one. are you using this for dirt track racing? if so you might want to check out your main jet. i went up a few sizes on mine becuase i have the throttle fully open a lot of the time when riding it, as you do on a 185, and it could easily handle a bigger main jet.