Just what the dr. Dr.. fixed my issue and put me back on the road.
Mikuni Bleed Pilot Jets #17.5 4-Pack - VM28/486 Carburetors
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.
These Mikuni Bleed Pilot Jets in #17.5 size are provided in a 4-pack, specifically for VM28/486 carburetors on V-twin motorcycles. These jets are crucial for metering fuel at idle and part-throttle engine speeds, ensuring your bike runs cleanly and smoothly through the low-RPM range. Correct pilot jetting is fundamental for optimal carburetor function.
Why riders pick this
- Controls idle and part-throttle fuel delivery
- Specific #17.5 orifice size
- For Mikuni VM28/486 carburetors
- Ensures smooth, clean running
- Convenient 4-pack for tuning needs
Dial in your V-twin's low-end performance with these Mikuni Bleed Pilot Jets. The #17.5 orifice size offers precise fuel metering for VM28/486 carburetors, directly influencing your engine's idle quality and response at partial throttle. This 4-pack is an ideal solution for riders and shops requiring multiple jets for fine-tuning or as readily available spares, ensuring consistent performance and optimal fuel delivery.
Optimized Low-End Fuel Delivery
- #17.5 bleed pilot jet size for precise metering
- Designed exclusively for Mikuni VM28/486 carburetors
- Ensures smooth, clean running at idle and low throttle
- Improves part-throttle transitions
- Supplied as a convenient 4-pack for comprehensive tuning
Critical for Carburetor Health
Pilot jets play a vital role in how your carbureted V-twin starts, idles, and transitions through the lower RPM range. If your motorcycle exhibits rough idling, sputtering at light throttle, or poor cold-starting characteristics, adjusting the pilot jet size is often the first step in diagnosis and correction. While these jets are a direct fit for VM28/486 carbs, remember that a complete carburetor service or a dyno tune may be necessary to fully optimize your fuel system after any jetting modifications.
Specifications
- Brand: Mikuni
- Manufacturer Part #: FVM28/486-17.5
- Quantity: 4 per pack
- Length: 4.5 in
- Width: 2.3 in
- Height: 0.4 in
- Weight: 0.05 lbs
- Country of Origin: Japan
Common questions
What is the size of these pilot jets?
These are Mikuni Bleed Pilot Jets with a #17.5 orifice size, specifically designed to meter fuel flow at idle and low-throttle speeds for VM28/486 carburetors.
How many jets are included in this pack?
This product comes as a 4-pack, providing enough jets for multiple tuning adjustments or for servicing a pair of carburetors, with spares to spare.
Are these pilot jets compatible with other Mikuni carburetor models?
No, these #17.5 bleed pilot jets are specifically sized and designed for Mikuni VM28/486 carburetors only. Please confirm your carburetor model before purchasing.
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 | 134-00175 |
| WEIGHT | 0.05 lb |
It's an oem Mikuni jet not much to say.
Perfect fit
Perfect fit
5 Stars
5 Stars