MIKUNI SKU: 134-00175

Mikuni Bleed Pilot Jets #17.5 4-Pack - VM28/486 Carburetors

$20.79
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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.
BRANDMikuni
TYPEJets
SKU134-00175
WEIGHT0.05 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
4.87
15 RATINGS
5★ 13
4★ 2
3★ 0
2★ 0
1★ 0
✓ VERIFIED
Jun 22, 2022

Just what the dr. Dr.. fixed my issue and put me back on the road.

— Anonymous
✓ VERIFIED
Mar 27, 2021

It's an oem Mikuni jet not much to say.

— Anonymous
✓ VERIFIED
Nov 11, 2019

Perfect fit

— Anonymous
✓ VERIFIED
Nov 11, 2019

Perfect fit

— Anonymous
✓ VERIFIED
Oct 2, 2019

5 Stars

— Anonymous
✓ VERIFIED
Sep 27, 2019

5 Stars

— Anonymous