Cold running, long reach Nippon Denso Iridium spark plug for highly tuned, higher power and higher revving Lambretta and Vespa (that use long reach plug) engined scooters.
 Ultra-fine 0.4mm Ø iridium centre electrode technology means that the spark delivered is more effective, has more ignitability and the required spark voltage is lowered so firing performance is more accurate and condensed, improving combustion compared to standard plugs.
 These plugs even improve emissions due to less combustion fluctuation and the cleaner spark delivered.
  U-grooved and taper cut electrode. This provides a large space for flame growth and reduces flame contact during combustion, it also reduces thermal load and mass from the ground electrode, reducing vibration stress and damage.
 
Product code: LUGSC5319