This system is made possible by the special geometry of the overhead camshaft. The petrol/oil mixture is sucked into the crankshaft housing from the carburettor. From there, it continues to the cylinder head and through the intake valve into the combustion chamber. In contrast to a pure two-stroke engine, the valves enable a clean separation of the burnt and fresh mixture. This means that the engines fulfil all the necessary exhaust gas regulations. This is new for outboards with mixture lubrication. The advantage of the system also lies in its simplicity. There is no need for an oil pump and filter.
But that's not all: another innovation is the starting system. A spring is tensioned by pulling it twice calmly, the force of which is released on the third pull and starts the engine. No more tearing, just relaxed pulling. Undoubtedly an advantage in a tippy dinghy.
As is often the case with Selva, which incidentally is the only company still manufacturing engines in Europe, the 2.5 hp drive has a centrifugal clutch. You don't have to like it, but it works. The larger models with 4 and 6 hp are shifted as usual via V-N-R. Selva puts the weight at 23 kilograms. This puts it slightly below the competition (25 to 28 kg).
Prices start at 1099 euros for the 4 hp engine and 1299 euros for the 6 hp engine. This also puts Selva at the lower end of the well-known brands.
