Review on Carburetor Carb for Yamaha Kodiak 400, Big Bear 400, Bruin 350, Grizzly 350/450, Wolverine 350/450 (2000-2012) by Robert Aliraqi

Spit and squirt and only idle at half throttle. You'll need to remove used parts from the OEM board you're replacing in order for it to function properly (if you're lucky). This carburetor is unbolted and finished. Save yourself hassle and wasted money and buy a genuine Mikuni Yamaha 5TE-E4101-01-00. I found one on eBay for $150, a little more than this (you get what you pay for). My old OEM carb lasted 19 years so I would recommend getting an original Mikuni Yamaha carb and be done with it.