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Start ShoppingMIKUNI High Speed Jet - FN102221-170 Jet Ski Engine for Power & Performance
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Description
Rev up your watercraft with MIKUNI's High Speed Jet engine, designed to deliver blistering performance and exceptional reliability for thrill-seekers. Whether you're chasing waves or racing against the clock, this engine combines cutting-edge technology with durable construction for an unforgettable ride.
Key Features
- High-Speed Performance: Engineered for maximum thrust and speed, delivering an adrenaline-fueled experience on the water.
- Durable Construction: Built with corrosion-resistant materials and reinforced components for long-term reliability in harsh conditions.
- Efficient Fuel Consumption: Advanced engineering optimizes fuel efficiency without compromising power output.
- Advanced Cooling System: Ensures optimal operating temperatures for consistent performance and extended engine life.
Why Choose This Product
Upgrade your watercraft with a MIKUNI High Speed Jet engine that balances raw power with smart design. Its robust build handles saltwater and rough conditions, while fuel-efficient technology reduces operating costs. Whether you're a seasoned rider or new to jet sports, this engine offers the speed, reliability, and innovation needed to dominate the water.
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Rev up your watercraft with MIKUNI's High Speed Jet engine, designed to deliver blistering performance and exceptional reliability for thrill-seekers. Whether you're chasing waves or racing against the clock, this engine combines cutting-edge technology with durable construction for an unforgettable ride.
Key Features
- High-Speed Performance: Engineered for maximum thrust and speed, delivering an adrenaline-fueled experience on the water.
- Durable Construction: Built with corrosion-resistant materials and reinforced components for long-term reliability in harsh conditions.
- Efficient Fuel Consumption: Advanced engineering optimizes fuel efficiency without compromising power output.
- Advanced Cooling System: Ensures optimal operating temperatures for consistent performance and extended engine life.
Why Choose This Product
Upgrade your watercraft with a MIKUNI High Speed Jet engine that balances raw power with smart design. Its robust build handles saltwater and rough conditions, while fuel-efficient technology reduces operating costs. Whether you're a seasoned rider or new to jet sports, this engine offers the speed, reliability, and innovation needed to dominate the water.
| SKU | GM4A07E254 |
|---|---|
| MPN | FN102221-170 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Multiple (Honda, Yamaha, Kawasaki, Suzuki) | Various 2-stroke and 4-stroke carbureted models | 1985-2024 |
Frequently Asked Questions
The high speed (main) jet controls fuel flow at higher RPMs and throttle positions. It affects mid-range and top-end performance, fuel economy, and engine response.
Signs include: black spark plugs (too rich), white spark plugs (too lean), poor acceleration, or running issues at altitude. Jetting depends on elevation, temperature, and engine modifications.
This jet is designed for specific Mikuni carburetor models. You must verify your carburetor type (VM, TMX, TM, etc.) and size before purchasing. Check your carburetor documentation or contact a Mikuni dealer.
On some applications, yes - if the carburetor bowl is accessible. However, it's recommended to remove the carburetor for thorough cleaning and proper installation.
Larger numbers = richer mixture (more fuel). A 170 jet is larger than a 160, delivering more fuel. Typical adjustments are in 5-10 jet size increments.
Installation Guide
Difficulty
Medium
Est. Time
15 min
Tools Required
- Carburetor removal tools (varies by application)
- Small screwdrivers (Phillips and flat-head)
- Carburetor cleaning supplies
- Gasket scraper or plastic tool
Pro Tips
- Clean carburetor thoroughly before jet replacement
- Keep track of old jet size for reference
- Use carburetor cleaner on all passages
- Replace all gaskets during reassembly
- Test run and adjust idle after installation
- Document your jetting changes for future reference
Common Mistakes to Avoid
- Over-tightening jet (can crack brass)
- Not cleaning carburetor passages before installation
- Installing wrong jet size for application
- Forgetting to replace gaskets during reassembly
- Not properly synchronizing carburetors if multiple units
Comparison vs Stock/OEM
If replacing a worn or incorrect jet, this OEM part ensures proper fuel delivery and engine performance
Considerations
- Jetting is application-specific - wrong size will cause performance issues
- May require multiple jets to dial in perfect mixture
Durability & Warranty
Expected Lifespan
Indefinite if not damaged; brass jets rarely wear out
Warranty
Typically covered under Mikuni OEM warranty (varies by retailer)
Maintenance
No maintenance required; replace only if damaged or incorrect size
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