I’ve got a Yamaha Grizzly 660 4x4 for sale. I rebuilt the front end, put in a new battery, carburetor, and installed a fuel filter this spring after that hard winter. I also put a new starter and gear in recently. The only thing wrong is that some of the lights in the cluster don’t work. I’ve always used Amsoil synthetic fluids in it since I got it and changed the oil religiously. The last owner rebuilt some of the shafts and put a new front rack on it as well. It has been a darn good 4 wheeler just wanting to get something different.