Pressure Leak Down Test Stage6

Stage6 2-stroke intake leak test kit
With this practical leak test kit, you will be able to check if your 2-stroke engine is properly sealed.

This tool is essential for any workshop. Once you have assembled the engine, you can use this kit to check if the engine block has been correctly sealed and is airtight. A perfectly sealed engine block guarantees maximum performance and precise carburetor adjustment. This avoids the hassle of having to disassemble the engine block after assembly in the event of a potential leak. If you want to make sure you leave nothing to chance, this tool is a smart choice!

Contents of the Stage6 intake leak test kit:
Connection parts for the intake manifold are available in almost all carburetor sizes available on the market:

• 1x Intake plug: 25 mm
  
• 1x Intake plug: 28 mm
  
• 1x Intake plug: 35 mm
  
• 1x Intake plug: 39 mm
  
• 1x Rubber sealing plate
  
• 4x Valves
  

How to use Stage6 intake plugs
To ensure exhaust sealing, it is recommended to mount the included rubber plate between the exhaust flange and the cylinder. This plate can be cut as needed, depending on the type of exhaust used. Please note that it is designed specifically for bolt-on exhaust flanges. For Minarelli AM6 or moped-style exhaust flanges, the use of an exhaust plug is recommended.

It is then necessary to mount the orange intake plugs corresponding to the appropriate size into your intake manifold. Once this is done, it is possible to pressurize the engine using the valve. It is preferable to use a hand pump or, with caution, a compressor. Recommended air pressure is between 0.5 and 0.8 bar. It should be noted that excessive pressure may cause the intake plugs or your oil seals to pop out!

Once pressure has been applied, it is necessary to measure if it decreases using a pressure gauge, whether on the air pump or a tire inflator gun. If no drop in pressure is observed within one minute, it means the crankcase is perfectly sealed. To detect possible leaks, simply apply a little soapy water and watch for the formation of bubbles.

Regarding the spark plug hole, it can be sealed using a standard spark plug, a pressure gauge, or the Stage6 spark plug blanking tool.