British Seagull Outboard Engines -


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Spark Plugs

Most models use a single point 18 mm size plug with a short reach of the following type:

Most Models

Less common or newer models use a single point 14 mm size plug of the following type:

QB (Curlew, Osprey, Kingfisher) 125 and 170 Models ONLY

SD 160

Spark Plug Gap Settings

Check to see which ignition assembly your outboard is equipped with. Each has its own setting. Adjust your spark plug gap as follows:

Older 102 models had a setting between 0.015 and 0.018. This was due to the fuel used at the time. With today's fuels, a setting of 0.020 can be used instead.