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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 Bruin 350 ATV (2004-2006)
The Yamaha Bruin 350, available from 2004 to 2006, is a robust utility ATV designed for versatility. It features a 348cc, air/oil-cooled, single-cylinder, SOHC, 4-stroke engine. This engine, fed by a Mikuni 33mm carburetor, is known for its responsive throttle and broad, steady torque spread, providing reliable performance for both work and recreation. Introduced as a new model in 2004, the Bruin 350 was largely a carryover for 2005 and 2006, with no significant mid-cycle generation or engine changes. The core engine design and CVT automatic transmission remained consistent. It was offered in two primary trims: the Bruin 350 Auto 2x4, a rear-wheel-drive model, and the Bruin 350 Auto 4x4, featuring a selectable 4x2/4x4 driveline with Yamaha's On-Command system. FAQ:
Q: Is this product compatible with my Yamaha Bruin 350?
A: To ensure perfect compatibility, please use our year and trim selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | 100 hours or annually | Replace oil and filter. Some sources suggest replacement every 1 000 km or 10 hours for heavy use. Use approximately 2.6 litres of 10W-40 4-stroke engine oil. |
| Air Filter | Clean every 20-40 hours | More frequent cleaning and lubrication if ridden in dusty or harsh conditions. |
| Spark Plug | Inspect and replace as necessary | Generally, replace every few years or if performance issues arise. |
| Drive Belt | Not specified | Manual mentions belt-related components, but no explicit replacement interval. |
| Coolant | Not specified | No specific replacement interval found in manual excerpts. Inspect for leaks. |