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EC 0-15lbs Carburetor Pop-Off Big Face Gauge w/Stand
POPG-4 EC 0-15lbs Carburetor Pop-Off / Leak-down Tester with Large Face Gauge and Stand.
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EC 0-15lbs Carburetor Pop-Off Big Face Gauge w/Stand

Part Number: POPG-4
Online Price: $119.99
Phone Order Price:$139.99
You Save:$20.00(14%)
EC 0–15 PSI Pop-Off Gauge – Diaphragm Carb Tuning Tool
Availability: Out of Stock.

Description

EC 0–15 PSI Pop-Off Pressure Gauge – Big Face with Air Pump & Relief Valve


Fine-tune your diaphragm carburetor like a pro with the EC 0–15 PSI Big Face Pop-Off Gauge, designed for precision measurement of inlet spring tension and leak detection in Tillotson, Walbro, and other diaphragm-style carburetors.


Read our full pop-off gauge setup and tuning guide here:
EC Pop-Off Gauge Instructions


Precision Fuel Tuning Tool for Karting & Small Engines

This tool features a large, easy-to-read 0–15 PSI dial mounted to a rugged, anodized red aluminum base with non-slip rubber feet to protect your workbench or toolbox. Unlike compact handheld testers, the EC Big Face Gauge uses a medical-grade air pump bulb with an integrated pressure relief valve, allowing you to build pressure slowly and accurately for more controlled measurements.


Key Features:

  • Large 0–15 PSI dial for easy reading
  • High-quality medical-grade air pump bulb with relief valve
  • Sturdy red powder-coated stand with anti-slip feet
  • Designed to test pop-off pressure and needle/seat sealing
  • Compatible with Tillotson, Walbro, EC diaphragm carburetors, and more
  • Essential for kart racing, mini bike tuning, and precision fuel calibration


What Does Pop-Off Pressure Do?

Pop-off pressure controls how and when fuel enters the carburetor, directly affecting low-speed tuning, throttle response, and overall carb performance. This gauge helps you:

  • Diagnose flooding or fuel delivery issues
  • Tune your inlet spring, fulcrum arm height, or shim stack
  • Detect leaks that cause erratic fuel flow or rich conditions


Included:

  • (1) 0–15 PSI large-dial gauge
  • (1) Medical-grade squeeze bulb with relief valve
  • (1) Red metal stand with rubber feet


Perfect for anyone building or tuning diaphragm-style carburetors on performance engines used in go-karts, mini bikes, and other small engine race applications.

FAQ

What is a pop-off pressure gauge used for?

A pop-off pressure gauge measures the fuel inlet spring tension and sealing integrity in diaphragm carburetors. It's essential for tuning carburetors like Tillotson and Walbro to achieve proper fuel delivery and avoid flooding or lean conditions.


Why is pop-off pressure important?

Pop-off pressure determines when fuel begins to flow into the carburetor. It directly affects:

  • Low-speed performance
  • Throttle response
  • Fuel control under acceleration

Tuning it properly allows for consistent carburetor performance under varying conditions.


Can I use this gauge for leak detection?

Yes. This pop-off gauge is also designed to detect leaks between the needle and seat, which can cause hard-to-tune rich conditions or random flooding.


What makes this pop-off gauge different?

Unlike cheaper or handheld testers, this version includes:

  • A large, easy-to-read 15 PSI dial
  • A medical-grade bulb with a built-in relief valve for controlled pressure application
  • A sturdy stand with rubber feet to keep your workspace clean and stable


What carburetors is this gauge compatible with?

This gauge works with most diaphragm-style carburetors, including:

  • Tillotson HL, HW series
  • Walbro WB, WT, and others
  • EC diaphragm racing carburetors
  • Many karting, mini bike, and small engine race carbs

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