Mikuni Bleed Pilot Jets #20 - Harley & Indian V-Twin VM28/486 Carbs
About Mikuni
Mikuni has supplied carburetors and fuel-system components to the motorcycle industry for decades, and its HSR series remains a common choice for carbureted Evolution and Twin Cam V-twins where a clean, tunable fuel curve matters more than electronics.
Dial in your V-twin's low-speed and idle performance with this 4-pack of Mikuni Bleed Pilot Jets. Sized #20, these precision-machined jets are crucial for accurate fuel metering in VM28/486 series carburetors, ensuring crisp throttle response right off idle.
Why riders pick this
- Optimizes idle and low-speed fuel delivery
- Precision-machined for accurate metering
- Corrects lean or rich conditions off-idle
- Essential for smooth V-twin throttle response
- Reliable performance from a trusted brand
When you're chasing that perfect tune on your carbureted V-twin, the pilot circuit is where it all starts. These Mikuni Bleed Pilot Jets in size #20 are designed to fine-tune the fuel delivery at idle and through the initial throttle opening, eliminating bogs and stumbles. They're a direct replacement for VM28/486 Mikuni carburetors, giving you the control to achieve a smoother running engine.
Precision Fuel Metering for V-Twin Performance
- Controls idle and low-speed fuel delivery for consistent performance
- Precision-machined to exact specifications for reliable operation
- Ensures proper air-fuel mixture for smooth off-idle transitions
- Manufactured in Japan, reflecting a commitment to quality
Tuning Your Carbureted V-Twin
Optimizing your pilot jet is a key step in any carburetor tuning process, especially after exhaust or air cleaner upgrades. A correctly sized pilot jet delivers the right amount of fuel before the main jet takes over, contributing to better cold starting, a stable idle, and improved rideability around town. Keep these on hand for your next tuning session or as reliable spares.
Specifications
- Brand: Mikuni
- Manufacturer Part #: FVM28/486-20
- Quantity: 4 per pack
- Jet Size: #20
- Carburetor Model: VM28/486
- Weight: 0.05 lbs
- Country of Origin: Japan
Common questions
Will these jets fit my Harley-Davidson with a Mikuni carburetor?
These jets are specifically designed for Mikuni VM28/486 carburetors. Please verify your exact carburetor model to ensure compatibility before ordering.
What is the purpose of a bleed pilot jet?
Bleed pilot jets control the fuel mixture at idle and very small throttle openings. They work in conjunction with the main jet to provide a smooth transition through the RPM range and optimize low-speed rideability.
How many jets are included in this pack?
This product includes four #20 Mikuni Bleed Pilot Jets, providing spares or options for tuning multiple carburetors.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Mikuni |
| TYPE | Jets |
| SKU | 134-0020 |
| WEIGHT | 0.05 lb |
