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Description
Take your performance to new heights with a Jet Kit for your vehicles. Increase power and improve performance throughout the entire RPM range, while improving throttle response and smoothness. These Jet Kits take the guesswork out of tuning your vehicles.
Whether you’re rolling with a stock vehicles or you’ve made some modifications, our Jet Kit will optimize your air/fuel ratio to eliminate rough spots and help you take control of your vehicles’s power. You can go with a Stage 1 Jet Kit to give your stock engine a 5% boost of horsepower or send it all the way up to Stage 3 if you’ve already made major modifications to your vehicles.
STAGE 1 DETAILS
Perfect for vehicles with a stock engine using the stock airbox, air filter, and pipes. Stage 1 Jet Kits are engineered to improve throttle response and deliver approximately 5% more horsepower than stock. These kits are fully adjustable to allow the use of well-designed aftermarket pipes and stock replacement air filters, like K&N.
STAGE 2 DETAILS
If you’ve made slight modifications to your vehicles, but still crave more performance, a Stage 2 Jet Kit is the solution. With a Stage 2 Jet Kit, you could see power gains of approximately 8%. This kit is intended for vehicles with stock or mildly tuned engines using a well - designed aftermarket pipe with a modified airbox and a stock replacement air filter.
FEATURES
- 5-8% power range.
- Fully adjustable.
- Increases power and drivability.
- For carbureted vehicles only.
Technical Specifications
- MFG. Part Number 3243
Vehicle Information
Yamaha Grizzly 400 ATV (2007-2008)
The Yamaha Grizzly 400, available for the 2007 and 2008 model years, is a robust utility ATV known for its reliability. Both years featured a consistent powertrain, equipped with a 401cc liquid-cooled, SOHC, 4-stroke single engine, providing dependable performance for various tasks. The primary trim offered was the Yamaha Grizzly 400 Auto 4x4, with a special Hunter Edition also available, catering to different user needs. Crucially, there were no significant mid-cycle generation or engine changes between the 2007 and 2008 models. The 2008 Grizzly 400 was a direct carryover from the 2007 specifications, ensuring consistency across these two model years. While other Yamaha ATV models saw updates in 2007, these did not apply to the Grizzly 400, which maintained its established design. Frequently Asked Questions:
Q: How can I be sure this part fits my Yamaha Grizzly 400?
A: To guarantee a perfect fit, please use the year and model selector at the top of this page. This will ensure you find parts specifically designed for your 2007 or 2008 Yamaha Grizzly 400.