Hello all, my sons 2007 Grizzly 80 swallowed the choke valve screw and bent both valves and damaged the piston. In searching for parts I’ve noticed piston/cylinder kits online from Amazon, eBay, and a bunch of private sellers. Prices are all over the place too. Are these kits worth a darn? Does anyone have any first hand experience with them? My son doesn’t ride hard (yet) so I don’t think spending the extra money for a Wiseco piston would be money well spent. I will be going to my local Yamaha dealer for the valves and gaskets.