Cycle Pro Emulsion Tube MKJ4 Nozzle - Keihin Carburetor V-Twin
About Cycle Pro
Cycle Pro supplies replacement and maintenance parts across the V-twin service catalog, covering the routine wear items a shop goes through week to week.
The Cycle Pro Emulsion Tube MKJ4 Nozzle is a critical and often hard-to-find replacement part for Keihin carburetors on V-twin motorcycles. This quality reproduction ensures proper fuel metering, essential for optimal engine performance and a smooth-running bike.
Why riders pick this
- Quality reproduction of original Keihin part
- Hard-to-find replacement for stock carbs
- Ensures accurate fuel and air mixture
- Direct fit for Keihin carburetors
The emulsion tube plays a vital role in precisely mixing fuel and air within your carburetor, directly impacting how your V-twin runs across various throttle positions. A worn or damaged emulsion tube can lead to an incorrect fuel mixture, causing issues like poor idle, hesitation, or inconsistent power. This Cycle Pro MKJ4 nozzle is built to original specifications, making it an ideal choice for riders rebuilding or servicing their stock Keihin carburetors.
Restore Precise Fuel Metering
- Quality reproduction of the original Keihin carburetor part
- Hard-to-find replacement for stock Keihin carburetors
- Ensures accurate fuel and air mixture for optimal performance
- Direct replacement for straightforward installation
Maintain Your V-Twin's Carburetor Health
When rebuilding or servicing your Keihin carburetor, attention to detail matters. Replacing small, critical components like the emulsion tube with a high-quality reproduction from Cycle Pro ensures that your Harley-Davidson or Indian Motorcycle's fuel system operates as intended. This helps prevent future performance issues and keeps your V-twin running strong and reliably.
Specifications
- Brand: Cycle Pro
- Manufacturer Part #: 16748
- Weight: 0.0942 lbs
Common questions
What is an emulsion tube and why is it important?
The emulsion tube meters the fuel and air mixture inside the carburetor, influencing how your engine performs at different RPMs. A worn tube can cause your carb to run too rich or too lean.
Is this a genuine Keihin part or a Cycle Pro reproduction?
This is a high-quality reproduction from Cycle Pro, designed to match the specifications and performance of the original Keihin MKJ4 emulsion tube.
How can I confirm if my carburetor uses an MKJ4 nozzle?
The MKJ4 nozzle is common in many Keihin carburetors on V-twin motorcycles. We recommend verifying your specific carburetor model and part number before ordering to ensure compatibility.
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 | Cycle Pro |
| TYPE | Intake/Carb/Fuel System |
| SKU | 865-01031 |
| WEIGHT | 0.09 lb |
