Carburetor for Yamaha Kodiak 400 Big Bear 400 Grizzly 350/450

In this review the focus is on a replacement carburetor that targets a range of Yamaha ATVs including the Kodiak 400, Big Bear 400, Grizzly 350/450, Bruin 350 and Wolverine models. The bottom line: this carb is for owners who need a direct-fit replacement with clear inlet dimensions and extra maintenance parts included, because the single biggest reason to buy is convenience of fit and a full accessory kit that helps installation and initial service. Our review finds it best when buyers confirm compatibility with their year and model before purchasing.

Key Features

• Broad vehicle fitment: Covers many Yamaha 2x4 and 4x4 models from 2000 through 2012 so owners of several ATV lines will find a matching fit.
• Measured inlet sizes: The intake side is 33mm inner/37mm outer and the air filter side is 48mm inner/52mm outer, which helps confirm whether it will mate to existing boots and hoses.
• Accessory kit included: Ships with a fuel filter, air filter and cleaner brush so basic upkeep and a first installation tune are simpler and less time consuming.
• Performance aim: Designed to improve fuel and air mixing to help engine smoothness, torque delivery and overall responsiveness when matched to a compatible engine.
• Manufacturing standard: Built to standard production specs intended to limit leaks and help maintain idle quality when adjusted correctly during installation.

Who It's For

This carburetor is aimed at DIY mechanics and ATV owners who need a replacement that matches specific Yamaha model years listed in the fitment chart, and who appreciate having an air filter, fuel filter and a cleaner brush bundled with the part. It is especially useful for those who prefer a lower-cost replacement over dealer parts but still want clear physical dimensions to compare to their original carb.

Owners who expect a perfect, out-of-the-box match with zero adjustments should be cautious; some users reported variable idle performance and a need for tuning or small adjustments. Riders seeking a guaranteed OEM-level fit or who cannot make minor carb adjustments should consider dealer-sourced parts instead.

Pros & Cons

Pros

• Clear fitment list covering many Yamaha Kodiak, Big Bear, Bruin, Grizzly and Wolverine years aids compatibility checks.
• Dimensions for intake and filter sides reduce guesswork when matching hoses and boots.
• Includes fuel filter, air filter and cleaner brush so the purchase is ready for initial service.

Cons

• Some customers reported mixed quality control and occasional idle or leakage issues that require adjustment or inspection.

Specifications

Compatible Models	Kodiak 400, Big Bear 400, Bruin 350, Grizzly 350/450, Wolverine 350/450
Model Years	2000-2012 (varies by model, see fitment)
Intake Inner Diameter	33mm
Intake Outer Diameter	37mm
Air Filter Side Inner Diameter	48mm
Air Filter Side Outer Diameter	52mm
Included Accessories	Fuel filter, air filter, cleaner brush

Our Verdict

This carburetor is a practical value option for Yamaha ATV owners who confirm fitment and are willing to make minor adjustments during installation. It offers clear dimensions and a useful accessory kit that simplify replacement, and it represents good value for DIY repairs when buyers accept some variability in quality control and the possible need to tune the idle.

Frequently Asked Questions

Will this carburetor fit my Kodiak 400?
Check the year and model listed in the compatibility section; it covers Kodiak 400 models from 2000 to 2006 depending on the exact variant.

Are any extra parts included?
Yes, the package includes a fuel filter, an air filter and a cleaner brush to help with installation and initial maintenance.

What if the carburetor needs adjustment?
The unit may require minor tuning after installation due to engine condition differences; owners should be prepared to adjust idle and mixture settings.