Kokusan Spark Plug Cap - Vespa / Piaggio 4T3V models

Various starting and sputtering problems, as well as the engine suddenly cutting out, can often be traced back to a poorly functioning spark plug.

If you have determined that the spark plug is still good, then replace the spark plug cap and the spark plug wire.

Always use a quality product for this, such as this spark plug cap from Kokusan!