Forty Plus MkII Specifications

British Seagull Forty Plus MkII - Engine Code FP
Date of Manufacture:September 1970
Years Manufactured:1968 - 1978
Bore:45mm
Stroke:40mm
Capacity:63.6cc
Approx RPM - Max:4200
Lubrication - Power Unit:Gasoline and Oil Mixture - Pressure Fed from Crankcase
Oil:Outboard 2 stroke to TCW2 or 3
Lubrication - Gearbox:Gear Oil (NOT Grease) - No gun required for replenishment
Gear Oil:SAE 140 or EP140
Ignition:Wipac MkII - Seagull "Instarter Magnition" system. A very high voltage spark from a flywheel magneto fires the charge in the cylinder head of exceptionally quick starting charactieristics.
Weight (Dry):12.7kg (28lbs) with bracket stripped.
Freeboard:Suits 16in Freeboard
Reduction Gear Ratio:10:35
Propeller:9inch diameter 4 bladed Hydrofan
Cruising Fuel Consumption per Gallon (1/2 to 3/4 throttle):5 1/2 Hours approx.
Fuel Capacity (Std Tank):4 pints (2.27 litres)
Fuel Capacity (Long Range Tank):5 1/2 pints (3.12 litres)
Fuel Capacity (Extra Long Range Tank):1 Gallon (4.5 litres)
Please note all the above are British values - ie a British Gallon is 4.5 litres, but an Amercian Gallon is only 3.7 litres: