EBC Powersports A-BAX Keihin-Style Pilot Jet N424-21 Size 55, 4-Pack

Everyone knows how sensitive an engine is to pilot jets in the acceleration stages from 1000 to 3500 rpm and getting fuel mixture right in this area is critical. For this reason jets have to be perfectly accurate in their marked size and incremental size steps. EBC Brakes sister company A-BAX Precision Engineering Ltd in the UK has purchased the most accurate machine on the planet for this work shown below. A-BAX Precision Engineering Ltd pilot jets are precise, clearly marked and reliably gauged using pin gauges, accurate to one tenth of a thousandth of an inch, you can rely on their accuracy. A-BAX Pilot Jets For Keihin; Measures 5mm x 28mm; Thread M6 x 0.75; Size 55; Jet Style N424-21; Pilot/Slow Running Jet; Fits Yamaha R6 99-07/Various Kawasaki/Suzuki Quads;

• NOTE - The names Mikuni and Keihin are for description purposes only; These are NOT original Mikuni or Keihin jets, simply a high-quality replacement
• Sold in Packs of 4

The EBC Powersports A-BAX Precision Engineering pilot jet is designed to help deliver accurate fuel metering during the critical acceleration range from approximately 1,000 to 3,500 rpm. Correct pilot jet sizing supports consistent throttle response, smooth low-speed operation, and reliable fuel mixture adjustment when tuning compatible carburetors.

Manufactured by A-BAX Precision Engineering in the UK, this pilot jet is precision-machined, clearly marked, and reliably gauged using pin gauges accurate to one ten-thousandth of an inch. The jet measures 5 mm by 28 mm and features an M6 x 0.75 thread, size 55 calibration, and the N424-21 jet style. It is intended as a high-quality replacement for compatible Keihin-style applications, including Yamaha R6 models from 1999 through 2007 and various Kawasaki and Suzuki quads.

Each package includes four pilot jets, making it convenient to replace multiple jets or maintain spares for future carburetor tuning. The names Mikuni and Keihin are used for application description only; these are not original Mikuni or Keihin components. Verify carburetor specifications and vehicle fitment before installation. This product is not emissions-certified for on-road applications where certification is required and carries a California Proposition 65 warning.

What's Included

• Four EBC Powersports A-BAX pilot jets
• N424-21 jet style, size 55

Features:

• Precision Fuel Metering: Supports accurate pilot-circuit fuel delivery during low-speed operation and acceleration from approximately 1,000 to 3,500 rpm.
• Precision-Engineered Construction: Manufactured by A-BAX Precision Engineering and gauged for dependable size accuracy.
• Keihin-Style Compatibility: Designed as a replacement pilot or slow-running jet for compatible carburetors using the N424-21 style.
• Convenient Four-Pack: Includes four pilot jets for multi-jet replacement, tuning, or keeping service spares on hand.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1