The Evinrude e-Tec Engine

The Evinrude e-Tec Engine

With the poor emissions record of the 2-stroke outboard engine technology and pressure from the EPA, most manufacturers developed 4-stroke versions of their product line. With the knowledge that 2-stroke has so many advantages over 4-stroke engines Evinrude/Johnson was reluctant to give it up. You may see Johnson label 4-stroke engines, but Suzuki makes them.

1. Weight
2. Simplicity
3. Cost
4. Torque

These are major differences. All they had to solve was emissions. This was done by keeping the oil out of the fuel stream and reduce unburned fuel in the exhaust. Regular gasoline is injected directly into the cylinder as the piston nears the top. Lubrication is accomplished by targeted misting of the oil at specific lubrication areas at critical points in the cycle. This, together with computer control to vary fuel flow and lubrication meets the goal with tremendous fuel economy as a bonus.

Users of these engines only need to ensure there is fuel in the fuel tank and oil in the oil reservoir. Low oil is signaled by a loud alarm and red light on the panel. The engine can still be operated normally for an hour or more, but needs to be refilled upon return. The reservoir under the motor cowl has a 1.5 quart capacity and is refilled from a gallon jug in the fuel cabinet. A full reservoir may last 4-5 tank loads of fuel.

Starting procedure couldn't be simpler. Lower the engine into the water. Check fuel and fuel hose. Pump hose bulb until firm. Turn key until it starts. Do not raise the warm-up lever before starting. There is no choke and no priming knob. Others will be maintaining the oil level. Although we should be gentle for the first few hours, the computer will automatically manage the new engine break-in. When finished for the day, raise the drive out of the water. (button on control handle)