|
For many years, outboards were only availible as a 2 stroke motor. These motors require oil to be mixed with gasoline in order to lubricate the internal parts. These motors provide high horsepower in a light weight engine. As we know, however, the 2 stroke motor is smoky and often will leave a sheen of oil on the water. A 4 stroke motor has it's own oil sump, and uses straight gasoline, providing a smooth running low pollution engine. The trend now is toward 4 stroke engines. These motors can be run at idle without fouling, making them ideal for fishing. The 4 stroke motor is also much more fuel efficient than the 2 stroke outboard, and much quieter. The only disadvantages to the 4 stroke motor is it's increased weight for the same HP, and generally flatter power output.
|
