The secret of the new Iridium IX spark plug lies in the laser-welded electrode made of iridium. Suzuki SV 650 X 1999. Suzuki SV 650 U X 1999. Suzuki SV 650 S X 1999. Suzuki SV 650 SU X 1999. The Iridium IX spark plug will last at least twice as long as any regular spark plug.
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