This Mikuni BSR33-73 is the stock replacement for Yamaha OEM part # 5TE-E4101-01-00. This model is designed as a direct replacement to fit 2000–2005 Yamaha Kodiak 400 models:

Fits:

• Yamaha Kodiak 400 YFM400A (2000–2004)
• Yamaha Kodiak 400 YFM400FA 4×4 (2000–2005)
• Yamaha Kodiak 400 YFM400FAH 4×4 Hunter Edition (2000–2005)
• Yamaha Kodiak 400 YFM400FAH 4×4 Real tree Xtra (2000–2002)

The BSR Series is a CV (constant velocity) carburetor featuring a uniquely shaped, diaphragm-controlled slide for quick response and precise control. This design allows the carburetor to adjust the slide position based on pressure differences between the venturi and diaphragm chamber, rather than being directly linked to the throttle. BSR carburetors are known for delivering smooth acceleration and improved fuel efficiency, making them popular in mid-sized to large motorcycles and ATVs.

Note: For off-road/race use only.

Jetting:

• 132.5 main jet
• 17.5 slow jet (pilot)
• 75 starting jet