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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

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Is there any way I can get the full model number of this carburetor?

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Here is the part number for your carb. This is for an OEM Yamaha carb.

3HN-14101-00-00

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