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With Iridium Alloy Center Electrode
Employing a high melting point iridium alloy tip for the
center electrode tip, a fine dia. of 0.4mm has been realized.
This fine electrode has led to a lower spark voltage and a
large increase in ignitability, which draws out even more
output and accelerator response from the engine. (Melting Point: Iridium 2454°C, Platinum 1769°C). |
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Motorcycle plugs
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Compact head plug
(Example) W27EMR-C
･ Plug with compact insulator head ･ D14  L19 20.6･ HONDA / SUZUKI |
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12 mm dia. shroud plug
(Example) X24GP-U
･ D12 L (19 + 3)18･ HONDA |
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12 mm dia.
 19 mm plug(Example) X24EPR-U
･ D12 L1918･ HONDA / SUZUKI / YAMAHA |
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10 mm dia. plug with half-sized threads and stainless steel gasket
(Example) U24FER9S
･ D10 L (6.3 + 12.7)16･ HONDA |
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10 mm dia. plug with half-sized threads
(Example) U27FER9
･ With its wider spark gap of 0.9 mm compared to conventional plugs (0.6 to 0.7 mm), this plug has improved ignitability. ･ D10 L (6.3 + 12.716･ HONDA |
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10 mm dia. double-electrode plug
(Example) U31ETR
･ With two ground electrodes, heat resistance is improved. ･ D10 L1916･ KAWASAKI / SUZUKI |
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10 mm dia.
19 mm plug(Example) U27ESR-N
･ Increasing the projection length by 0.5 mm improves resistance to fouling. ･ D10 L1916･ YAMAHA / KAWASAKI / SUZUKI |
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10 mm dia.
12.7 mm plug(Example) U20FSR-U
･ D10 L12.716･ HONDA / YAMAHA / SUZUKI |
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8 mm dia. plug
(Example) Y27FER-C
･ D8 L (6.3 + 12.7)13･ HONDA |
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