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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 Kodiak 450 ATV (2003-2026)
The Yamaha Kodiak 450, a robust mid-size utility ATV, has served riders from 2003 to 2026, known for its reliability and versatility. Throughout these years, it has consistently featured a 421cc single-cylinder, liquid-cooled, SOHC engine, providing ample power for work and recreation. Positioned as a capable and user-friendly vehicle, the Kodiak 450 has evolved to meet the demands of various terrains and tasks. The Kodiak 450 underwent a significant transformation, marking a clear generational break. The first generation (2003-~2017) featured a carbureted 421cc engine, delivering around 26-27 hp, and saw the introduction of Electronic Power Steering (EPS) as an option around 2010-2011, alongside a frame overhaul. After a temporary discontinuation, the model was reintroduced in 2018 as a second generation. This major redesign brought an all-new compact chassis, Electronic Fuel Injection (EFI) for improved performance, standard Independent Rear Suspension (IRS), and enhanced ergonomics. Since 2018, the core platform has remained consistent, with updates primarily focusing on trim variations and premium features like winches or special editions. Q: How do I ensure I select the correct parts for my Kodiak 450?
A: To guarantee a perfect fit, please use the year and edition selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | Every 50 hours, 800 km, or once per season, whichever comes first | The oil filter is typically replaced with each oil change. Use manufacturer-recommended oil and filter. |
| Air Filter | Check/Clean every 20 hours or more frequently | Replace if damaged or beyond cleaning. Check more often in dusty conditions. |
| Spark Plug | Check/Clean/Adjust gap every 100 hours | Replace if necessary as per the periodic maintenance chart. |
| Coolant | Replace every 2 years or 200 hours | Check level before each ride (cold engine). |
| Drive Belt (CVT Belt) | Inspect every 100 hours | Inspect for wear and tear, replace as needed. Keep the CVT case clean. |