Piston Stopper from SIP for Vespa Engines - precise tool for exact ignition adjustment and easy determination of top dead center.

In order to set the Ignition of a Vespa correctly, the Piston must be blocked. A Piston Stopper, which is screwed into the Engine in place of the Spark Plug and prevents the Piston from moving any further, is a particularly elegant way of measuring the top dead center. The Piston Stopper from SIP is ideal for manual screwing in and can also be used when the Cylinder Cowling is fitted. The ribbed gripping surface ensures a secure hold, while a stop behind the thread facilitates perfect positioning. The front end is rounded to protect the sensitive Piston. The Piston Stopper is made of high-quality steel, coated in black and available in two versions: short for Smallframe and extra long for Largeframe Engines.