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Iridium Power Spark Plug

Iridium Power Spark Plug Platnium is used for both the center and ground electrodes. ● Milleage drivability and durability are improved by using a finer center electrode with a platinum tip. ● The structure reduce the voltage required for the positive discharges.
THE PLUG CONNFIGURATION
1 D10*L(6.3+12.7)*HEX 14
2 Honda Motorcycle CBR900RR
3 0.4 diameter iridium plugs
for the first time in the
world
4 IUH27D/IUH24D

Higher Ignitability

Fig. 3 shows the results of evaluating how the miniaturized-portion protrusion direction may influence the ignitability of an engine. The evaluation checked idle speed at equal throttle opening with the ISC (idle speed control) turned off. A higher idle speed represents higher ignitability. This figure shows the results of evaluating IRIDIUM TT. This figure shows that IRIDIUM TT are superior to the Iridium Spark Plugs in ignitability.