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It is general question concerning DENSO SPARK PLUG that is often.
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I ride a BMW R100RS ('92) motorcycle. I bought Iridium plugs (IW20, as specified in the charts) and installed them, but whenever I stop at the stop light, my engine stalls. Is this a defect with the plug? Or does this mean that my motorcycle is unsuited to Iridium Power? How can I get them to work? |
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Because Iridium Power plugs have center electrode, they will spark even at low voltages (i.e. they have low voltage requirements), and we are proud to say they have excellent compatibility with older cars with weaker electrical systems.
However, in general, some older vehicles (not only the BMW motorcycle in this question) appear to have a degraded ignition systems from age, resulting in sufficient voltage not being available from the coil.
For improved ignitability, the low heat range Iridium Power plugs have a spark gap of 1.1mm, and in vehicles with a significantly weakened electrical system, this may result in symptoms such as "rough idling" and "lack of power." Adjusting the spark to between 0.8 and 1.0mm should solve this problem.
However, because the center electrode is extremely thin, please have this adjustment done by a professional mechanic. |
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