Mikuni Carburetor Leak Detector 30 PSI - Harley & Indian V-Twin
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.
The Mikuni Carburetor Leak Detector is an essential diagnostic tool for any V-twin owner working on their fuel system. This detector allows you to pressurize carburetors up to 30 PSI, making it easy to pinpoint internal leaks in needle and seat assemblies, crankshaft seals, and crankcase surfaces. It's a must-have for proper tuning and rebuilding work.
Why riders pick this
- Pressurizes carbs to 30 PSI to find leaks
- Tests needle and seat holding pressure
- Detects crankshaft seal and crankcase leaks
- Essential for tuning and rebuilding V-twin engines
- Accurate and reliable diagnostic tool
When your V-twin isn't running right, a hidden leak in the fuel system or engine seals can be the culprit. This Mikuni leak detector takes the guesswork out of diagnosis by creating a controlled pressure environment within the carburetor or crankcase. By observing pressure loss, you can accurately identify where air is escaping, saving you time and effort in troubleshooting.
Pinpoint Leaks for Optimal Performance
- Pressurizes carburetors to 30 PSI for accurate leak detection
- Identifies internal leaks in needle and seat assemblies
- Detects potential crankshaft seal failures
- Checks crankcase surface integrity for air leaks
- Essential for precise tuning and rebuilding projects
Crucial for V-Twin Diagnostics
Whether you're fine-tuning a performance build or simply bringing an older V-twin back to life, the ability to confirm a leak-free system is invaluable. This Mikuni tool helps ensure that your engine's vacuum and pressure systems are sealed correctly, contributing to consistent performance and proper fuel-air mixture. It's a professional-grade solution for serious V-twin mechanics and DIY enthusiasts alike.
Specifications
- Brand: Mikuni
- Manufacturer Part #: FMK-BNPMP R
- Length: 4 in
- Width: 10.3 in
- Height: 1.4 in
- Weight: 0.46 lbs
- Country of Origin: Japan
Common questions
What types of leaks can this detector find?
This Mikuni leak detector can identify internal leaks in needle and seat assemblies, as well as leaks in crankshaft seals and crankcase surfaces by pressurizing the system and observing for pressure drops.
Can this be used on any Harley or Indian carburetor?
Yes, this tool is designed to work on any carburetor that can be sealed and pressurized, making it suitable for a wide range of Harley-Davidson and Indian Motorcycle carburetors, as well as crankcase systems.
Is 30 PSI safe for my carburetor?
Yes, 30 PSI is a safe and effective pressure for testing carburetors and crankcases without risking damage to their internal components or seals.
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 | Tools |
| SKU | 13-2767 |
| WEIGHT | 0.46 lb |
