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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 Banshee 350 ATV (1987-2006)
The Yamaha Banshee 350, produced from 1987 to 2006, is a legendary two-stroke sport ATV renowned for its powerful 347cc twin-cylinder, liquid-cooled engine. Derived from the Yamaha RD350 motorcycle, this robust engine delivered approximately 34 horsepower through a 6-speed manual transmission. Unlike its motorcycle counterpart, the Banshee's engine did not feature the Yamaha Power Valve System (YPVS), a design choice that simplified the ATV and made it more adaptable for tuning. Throughout its long production run, the Banshee 350 maintained a remarkably consistent core design. While cosmetic updates like colors and graphics were frequent, significant mechanical changes were limited. A notable update occurred between 1990 and 1991, when the front suspension transitioned from a J-arm design (1987-1990) to a more robust A-arm setup (1991-2006), enhancing frame rigidity. Additionally, the taillight design evolved, with earlier models (1987-2001) featuring a smaller light without a dedicated brake light, which was updated to a larger taillight with an integrated brake light from 2002 to 2006. In its final U.S. production year (2006), Yamaha offered a 'Base' model and a 'Special Edition' (SE) which was primarily a cosmetic package with unique color schemes. FAQ:
Q: Is this product compatible with my specific Yamaha Banshee 350?
A: To ensure perfect fitment, please use the year and edition selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Spark Plug | Every 200 hours or 6 400 km | Clean or replace as necessary. Frequent inspection for carbon buildup is advisable for two-stroke engines. |
| Air Filter | Inspect after every ride, clean at least every other ride | Clean and replace if necessary. Replace if worn, damaged, or dirty after cleaning. |
| Coolant | Every 24 months | Check level before each ride. |