Recently, my ATV (a 1997 Yamaha Big Bear 350 2x4) developed a carburetor issue where it would run rich. I took it to a mechanic who says that it needs a new carburetor. However, he was unable to find one.
Manufacturer: Mikuni Corp.
Model Number (partial):
First Line: 4WU 20
Second Line: ???42
Is there any way I can get the full model number of this carburetor?