Mini dumper from 1975. Honda G65 motor, 6.8 HP with reduction gear 1:2, centifugal clutch and a dual coil DIY ignition system. I use it as a motorized wheelbarrow.
It was produced during the 70s by a mechanical workshop that sold these to concrete contractors. They were originally used to transport concrete from the concrete truck to where it were poured. The construction is simple and apart from what is seen in the video, there is not much secrets about the design. The propelling wheel, motor, gears and the handlebar is mounted on an infinite rotating column, much like a bumper car. Therefore it is very maneuvrable, allthough unstable in forward direction as it is back wheel steered and propelled. That is why I rotate the wheel 180 degree and sit in the bucket when driving it without load.
It is suited for sturdy dry flat lands. In muddy slopes this thing is a death trap. Also.. it is propelled by its back wheel so if you drive it with the wheel pushing, you have to constantly adjust its course. That is why I reverse the drive wheel and sit in the container.. If the wheel is pulling it is very stable.
