Champion standard spark plugs have a copper core, for improved conduction, and traditional electrode designs. Champion standard spark plugs are the best choice for vintage models as they have a broader working range than other makes. This is a Long reach spark plug with a 14mm x 1.25mm thread and a 21mm hex.
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VESPA 200 - PX200EFL 1984-1997 CHAMPION SPARK PLUG N3C - EQUIVALENT TO B8ES