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Start ShoppingMIKUNI Large Round Main Jet 92.5 - High-Performance Brass Fuel Jet for Powersports Engines
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Description
Upgrade your powersports engine's fuel delivery system with MIKUNI's premium Large Round Main Jet (92.5). This precision-engineered brass jet ensures optimal air-fuel mixture for enhanced power, responsiveness, and engine efficiency in motorcycles, ATVs, and off-road vehicles.
Key Features
- 92.5 Orifice Size: Precisely calibrated for high-performance fuel flow optimization in demanding riding conditions.
- Brass Construction: Durable, corrosion-resistant material ensures long-lasting reliability in harsh environments.
- Precision Dimensions: 5.6mm outer diameter with exact 92.5/1000ths inch orifice for seamless compatibility with MIKUNI carburetor systems.
- Lightweight Design: Only 0.5 grams to minimize moving parts while maintaining structural integrity.
Why Choose This Product
MIKUNI's Large Round Main Jet delivers unmatched performance through meticulous engineering. The brass alloy resists wear and clogging, while the precise 92.5 orifice size ensures consistent fuel metering for power gains without sacrificing engine longevity. This essential carburetor component is engineered for riders who demand precision tuning and reliable performance in extreme conditions. Whether you're modifying a racing machine or optimizing a street bike, this jet provides the foundation for a perfectly balanced air-fuel ratio.
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Upgrade your powersports engine's fuel delivery system with MIKUNI's premium Large Round Main Jet (92.5). This precision-engineered brass jet ensures optimal air-fuel mixture for enhanced power, responsiveness, and engine efficiency in motorcycles, ATVs, and off-road vehicles.
Key Features
- 92.5 Orifice Size: Precisely calibrated for high-performance fuel flow optimization in demanding riding conditions.
- Brass Construction: Durable, corrosion-resistant material ensures long-lasting reliability in harsh environments.
- Precision Dimensions: 5.6mm outer diameter with exact 92.5/1000ths inch orifice for seamless compatibility with MIKUNI carburetor systems.
- Lightweight Design: Only 0.5 grams to minimize moving parts while maintaining structural integrity.
Why Choose This Product
MIKUNI's Large Round Main Jet delivers unmatched performance through meticulous engineering. The brass alloy resists wear and clogging, while the precise 92.5 orifice size ensures consistent fuel metering for power gains without sacrificing engine longevity. This essential carburetor component is engineered for riders who demand precision tuning and reliable performance in extreme conditions. Whether you're modifying a racing machine or optimizing a street bike, this jet provides the foundation for a perfectly balanced air-fuel ratio.| SKU | GM62DF63C9 |
|---|---|
| MPN | FN100604-92.5 |
| Brand | MIKUNI |
| Category | Jets |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Various Japanese | Models with Mikuni VM/PF series carbs (e.g., Yamaha YZ/WR, Honda CR/XR, Kawasaki KX/KLX) | 1980-2025 |
| Suzuki | RM/DR-Z series | 1990-2010 |
Frequently Asked Questions
Fits Mikuni VM, BS, PF, and TM series carbs with large round main jet ports (5.6mm OD). Check your carb model.
Use plug chop method or wideband O2 sensor. 92.5 is common for mid-range tuning on 250-450cc bikes at sea level.
Yes, OEM Mikuni part number FN100604-92.5, not aftermarket.
No, this is main jet only for main system above 3/4 throttle.
Installation Guide
Difficulty
Easy
Est. Time
10 min
Tools Required
- Small flathead screwdriver
- Jet cleaning wire or carb cleaner
Pro Tips
- Remove carb, unscrew main jet holder, replace jet, blow out with compressed air. Always plug gaps and test air/fuel ratio post-install.
Common Mistakes to Avoid
- Not cleaning jet before install
- Incorrect jet size selection without testing
Comparison vs Stock/OEM
Direct OEM replacement or upgrade for stock Mikuni carbs
Improvements
- Precise fuel delivery for optimal A/F ratio
- Better throttle response and power
Considerations
- Must match elevation/temp to avoid rich/lean conditions
Durability & Warranty
Expected Lifespan
Indefinite with proper cleaning (replace if orifice damaged)
Warranty
Limited lifetime (manufacturer defect only)
Maintenance
Clean with carb cleaner every 10-20 hours; inspect for wear
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