OLIFANT Carburetor Replacement for Yamaha Big Bear/Bruin/Grizzly 2000-2014 – Direct-Fit 33mm Intake, OE Cross-Refs

High-quality replacement carburetor engineered to restore smooth throttle response and reliable fueling for a wide range of Yamaha ATVs from 2000–2014.

This OLIFANT carburetor is a direct-fit aftermarket unit designed for multiple Yamaha ATV models including Big Bear, Bruin, Grizzly, Kodiak and Wolverine series. Built to replicate factory dimensions and mounting points, it offers a cost-effective way to replace worn or damaged carburetors and get your ATV back to dependable running condition. The assembly matches OE part numbers and precise inlet/outlet diameters so installation is straightforward for anyone comfortable with basic engine work.

Which Yamaha models will this carburetor fit?

This carburetor is compatible with a broad selection of Yamaha four-wheelers produced between 2000 and 2014. It targets both 250–450cc platforms across different model families so you can use one replacement part for several machines.

• Big Bear: YFM400 (2000–2012), YFM250B (2007–2009)
• Bruin: YFM250 (2005–2006), YFM350 (2004–2006)
• Grizzly: YFM350 (2x4/4x4, 2007–2014), Grizzly 400 (2007–2008), Grizzly 450 (2007–2014)
• Kodiak/Wolverine: Kodiak 400/450, Wolverine 350/450 (selected years 2000–2010)

What are the key measurements and OE cross-references?

The unit adheres to exact intake and airbox diameters so it mates correctly with stock boots and filters. It carries multiple OE reference numbers to simplify parts matching and ensure you choose the correct replacement.

• Intake (inner): 33 mm, intake (outer): 38 mm
• Air filter side (inner): 49 mm, air filter side (outer): 52 mm
• Matches many OE numbers including 5FU-14101-10-00 and related codes
• Designed to bolt up with original mounting points and throttle linkages

How does installing this carburetor benefit my ATV?

Replacing a worn carburetor can eliminate hard starting, uneven idling, and poor throttle response caused by clogged jets or degraded internal seals. A fresh unit restores consistent fuel metering for safer, more predictable riding across varied terrain.

• Renewed throttle responsiveness and steadier idle
• Reduced risk of fuel leaks or vacuum-related issues
• Compatibility with stock intake boots and airbox assemblies
• Cost-effective alternative to OEM remanufactured parts

What should I know before purchasing and installing?

Double-check your ATV’s model year and OEM part numbers to confirm compatibility. Basic mechanical skills and standard tools are usually sufficient for replacement; carb adjustments or tuning may be required after installation to match altitude and fuel quality.

• Verify fit using listed model years and OE numbers
• Expect routine tuning: idle, mixture, and choke settings
• Inspect intake boots and seals; replace if brittle to prevent air leaks
• Consider a professional tune if you frequently ride at different elevations

Who is this for: Riders and mechanics looking for a reliable, budget-friendly replacement carburetor for mid-2000s to early-2010s Yamaha ATVs. Ideal for DIYers who want a direct-fit unit that matches OE dimensions, and for shops servicing Big Bear, Grizzly, Bruin, Kodiak or Wolverine models needing dependable parts to complete repairs quickly.