Mikuni VM26mm Performance Carb Kit - For use with the Lifan head, YX140 motors and more. Has a 26mm opening at the head side of the intake. This is, perhaps, the best carburetor kit to run on the Lifan Heads, YX140 + motors and TB Parts V2 race heads. The kit includes: - Genuine Mikuni VM26mm Performance Carb. - Intake Kit for the Race head w/26mm opening at head - Jet kit with 3 different sizes (Stock size is a #195 - Extra jets sizes of 155, 165 & 175) - Throttle Cable and foam filter.