Marine Engine (Outboard)

BRITISH SEAGULL

2, 3, 4, 5, 6HP

Model	Year	Standard Plug	Gap (mm)
		M17	0.5

Century, Century Plus (Magneto Ign.)

Model	Year	Standard Plug	Gap (mm)
		M17	0.5

Century, Century Plus (CDI Ign.)

Model	Year	Standard Plug	Gap (mm)
		M17	0.5

Featherweight (Magneto Ign.)

Model	Year	Standard Plug	Gap (mm)
		M17	0.5

Forty Minus, Forty Plus (MagnetoI Ign.)

Model	Year	Standard Plug	Gap (mm)
		M17	0.5

Featherweight, Forty Plus (CDI Ign.)

Model	Year	Standard Plug	Gap (mm)
		M17	0.5

Minor BM

Model	Year	Standard Plug	Gap (mm)
		W20FS-U/TR20	0.6

Silver Century, Silver Century Plus

Model	Year	Standard Plug	Gap (mm)
		M17	0.5

45, 55, 60, 75, 80, 90

Model	Year	Standard Plug	Gap (mm)
		M17	0.5

125, 160, SD160, 170

Model	Year	Standard Plug	Gap (mm)
		W22ES-U	0.8

QB Series, Curlew, Osprey Kingfisher

Model	Year	Standard Plug	Gap (mm)
		W22ES-U	0.8

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