Review on 🏎️ High-Performance Yamaha Grizzly YFM600 YFM660 Carburetor for Improved Engine Efficiency by Gary Zielinski

Had to run the inlet hose in hot water for it to work. The fuel line also had to be heated for the installation of the new fitting. Was very hesitant to install it after reading other reviews. * No instructions given. * Hoses too narrow. ! I checked twice to put in the biggest bait for the big one (extras were sent with this carb). This carburetor has 3 jets that give you a smooth transition from low to full idle. The numbers are stamped on the nozzles so you know their size. In general. If you are not mechanically savvy, this can be a real challenge for you. Be sure to run the hoses in HOT water and it should work for your 1999 Grizzly 600.