Replace your TM36 or TM40 series carburetor idle screws with only genuine Mikuni parts.  The Mikuni TM40/91 idle adjustment screw fits all Mikuni TM36 and TM40 carburetors and replaces the idle adjustment screw.  Works on side idle carburetors only.


Spring is not included but available as an option, select the option above before adding to your cart.