2.5 HP @ 2,500 RPM
This MK 20 was manufactured between 1950 and 1957 in Ballarat Victoria Australia by Norton-Villiers Australia
engines were manufactured by Villiers in Marston Rd Wolverhampton England, and
their subsidiaries in various parts of the British Empire. Models with an X after the first three numerals in the serial number were made
in Australia sometimes using imported components.
These engines were widely used in rural Australia running an assortment
of machinery, cement mixers, water pumps, post-hole borers, lawn mowers and
rotary hoes to name a few. Today you can
still find these engines in use in rural Australia, although not as numerously
as in years gone by.
Internal dimensions of the engine are bore 63mm stroke 66.7mm, 206.5cc. Fuel-tank capacity 1/2 gallon.