Universal Spark Plug Wire HT Lead by Foot (DW-SWHTFOOT)
Can be used on any Vespa or Lambretta
High Quality Super Conductor Black Wire
7mm Copper Core made in the USA
The HT lead is the connection between the ignition coil and spark plug and has to be able to endure a huge load. If a scooter misfires then the fault may be due to an old or defective lead.
Conclusion: This should be replaced during all major servicing and a spare belongs in every luggage compartment.
TECH TIP: Replace the spark plug cap when replacing the lead as well.