Yamaha - Carburetor Repair Kit Fuel System Service Kit 6J8-W0093-02-00. Overview. If you've spent time keeping Yamaha outboards running right, you know carburetors need attention sooner or later. Between fuel quality and normal wear, they start to lose that smooth idle and clean throttle response. The Yamaha Carburetor Repair Kit 6J8-W0093-02-00 is what brings things back when the engine starts acting up. It's one of those maintenance jobs that makes a noticeable difference the first time you ge