Denso IW F 24 short thread Iridium for Vespa (equivalent degree of temperature at NGK B8HS - Bosch W3AC)

Description

Denso IW F 24 short thread Iridium spark plug for Vespa (temperature grade equivalent to NGK B8HS - Bosch W3AC) DENSO SPARK PLUGS DETAILS: An important factor in choosing spark plugs is the heat range, which defines the amount of heat that the spark plug can expel from the combustion chamber. Spark plugs which operate at too high or too low temperatures create problems: the former do not cool sufficiently and cause pre-combustion, the latter generate a carbon deposit on the electrodes. Denso operates between 400 and 900 degrees, which is the ideal range to allow self-cleaning of the spark plug between combustions. This series offers: 1. more powerful spark at lower voltages