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Start ShoppingMikuni FVM28/486-70 Replacement Pilot Jet for RS/HS Carburetors
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Description
Upgrade your Mikuni FVM28 carburetor with this precision-engineered pilot jet designed for reliable fuel delivery and smooth engine operation. Perfect for riders seeking enhanced performance and consistent power delivery on motorcycles and ATVs.
Key Features
- Precision-Crafted Brass Construction: Durable brass material ensures long-lasting performance and consistent fuel flow for reliable engine operation.
- Perfect Fit for Mikuni FVM28 Carburetors: Specifically designed for Mikuni RS and HS carburetors to ensure seamless integration and optimal fuel metering.
- Lightweight Design: Weighing ~2-3 grams, this jet offers easy handling without compromising performance or fuel efficiency.
- Durable and Reliable Performance: Engineered to withstand harsh conditions while maintaining precise fuel delivery for consistent power output.
Why Choose This Product
Upgrade to this Mikuni pilot jet for unmatched reliability and precision. Its brass construction ensures corrosion resistance and smooth fuel flow, while the exact fit for FVM28 carburetors eliminates compatibility issues. Ideal for riders who demand consistent performance and easy maintenance, this jet delivers reliable fuel metering for both stock and modified engines.
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Upgrade your Mikuni FVM28 carburetor with this precision-engineered pilot jet designed for reliable fuel delivery and smooth engine operation. Perfect for riders seeking enhanced performance and consistent power delivery on motorcycles and ATVs.
Key Features
- Precision-Crafted Brass Construction: Durable brass material ensures long-lasting performance and consistent fuel flow for reliable engine operation.
- Perfect Fit for Mikuni FVM28 Carburetors: Specifically designed for Mikuni RS and HS carburetors to ensure seamless integration and optimal fuel metering.
- Lightweight Design: Weighing ~2-3 grams, this jet offers easy handling without compromising performance or fuel efficiency.
- Durable and Reliable Performance: Engineered to withstand harsh conditions while maintaining precise fuel delivery for consistent power output.
Why Choose This Product
Upgrade to this Mikuni pilot jet for unmatched reliability and precision. Its brass construction ensures corrosion resistance and smooth fuel flow, while the exact fit for FVM28 carburetors eliminates compatibility issues. Ideal for riders who demand consistent performance and easy maintenance, this jet delivers reliable fuel metering for both stock and modified engines.| SKU | GM5C8EBC36 |
|---|---|
| MPN | FVM28/486-70 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various (Suzuki, Yamaha, Kawasaki, Honda) | Models with Mikuni VM28 carburetors (e.g., Suzuki RM250, Yamaha YZ250, Kawasaki KX250) | 1980-2025 |
Frequently Asked Questions
Signs include rough idle, difficulty starting, or poor low-end throttle response. Pilot jets can become clogged with varnish or debris over time.
Pilot jets control fuel flow at idle and low throttle positions (0-25%). Main jets control fuel flow at higher throttle openings. Both may need adjustment for optimal performance.
Sometimes, but replacement is often more reliable. Cleaning may restore function temporarily, but replacement ensures consistent performance and is relatively inexpensive.
Only if you've made modifications (air filter, exhaust, altitude change). For standard replacement, use the OEM jet size specified for your carburetor.
Verify the part number and purchase from authorized dealers. Counterfeit carburetor parts exist, so buy from reputable motorsports retailers.
Installation Guide
Difficulty
Medium
Est. Time
15 min
Tools Required
- Small screwdrivers (Phillips and flat-head)
- Carburetor cleaning tools or compressed air
- Small wrench or socket set
- Gasket scraper (plastic preferred)
Pro Tips
- Take photos during disassembly for reference
- Keep all small parts organized in a container
- Clean carburetor thoroughly while disassembled
- Use new gaskets when reassembling
- Test idle and throttle response after installation
Common Mistakes to Avoid
- Not draining fuel before disassembly
- Losing small springs or clips during removal
- Over-tightening jet during installation
- Not cleaning carburetor passages before reassembly
- Installing jet backwards or cross-threading
Durability & Warranty
Expected Lifespan
3-5 years typical (depends on fuel quality and maintenance)
Warranty
Manufacturer warranty typically 30-90 days
Maintenance
Inspect annually; clean or replace if clogged. Proper fuel storage prevents varnish buildup.
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