Many new boat owners can't distinguish between 4 Stroke Boat Motor and 2 stroke boat motor. To be honest, they're not familiar enough with our marine propulsion systems. Close your eyes, listen carefully, and the quiet one is a four-stroke outboard motor; the noisy one is a two-stroke outboard motor.
A four-stroke outboard motor works on the same principle as a car engine, requiring four clean, decisive strokes to complete an energy cycle, propelling the boat through the waves. To understand how a four-stroke outboard engine works, let's break it down:
First Stroke: Intake. Intake is when the piston moves downwards, drawing the air-fuel mixture into the cylinder, completing the intake stroke.
Second Stroke: Compression. Compression is when the piston moves upwards, compressing the air as tightly as possible.
Third Stroke: Power Stroke. The spark plug ignites the fuel, and the pressure of the explosion pushes the piston down, completing the power stroke and generating the power to rotate the propeller.
Fourth Stroke: Sweep. The piston moves upwards again, expelling the exhaust gases from the cylinder, completing the exhaust stroke.
After four strokes, one cycle ends, and a new cycle begins. Unlike 2 stroke boat motors, 4 stroke boat motors store oil and gasoline separately. The oil is only for lubrication and does not participate in combustion. Therefore, the exhaust from four-stroke boat motors is very clear and has no unpleasant odor. At the same time, the fuel burns more completely, saving boat owners fuel and money.
Boat owners accustomed to two-stroke outboard engines often exclaim when using four-stroke outboard engines: "Four-stroke boat engines are so quiet! I never knew outboard engines could be so quiet!" Four-stroke outboard motors have an independent lubrication system and a precise valve train, resulting in smoother piston movement, less noise, and lower vibration.
While four-stroke boat motors offer many advantages, they require more care from boat owners. Because of their independent oil lubrication system, four-stroke outboard engines require us to:
• Change the oil regularly. Approximately every 100 hours of use, the old oil should be changed and replaced with new oil.
• Check the oil dipstick. Before setting off, check the oil level to ensure it is sufficient.
• Do not add the wrong type of fuel. Four-stroke outboard motors use pure gasoline; never mix them.
Four-stroke outboard motors are best suited for:
• Fishing enthusiasts who need a quiet glide to their fishing spot;
• Family travelers who don't want the atmosphere ruined by noise and fumes;
• Those who want to save on fuel costs, don't want to spend too much time on maintenance, and are budget-conscious;
A four-stroke outboard boat motor is like a stable, efficient, and clean partner, providing a continuous and powerful boost to your boat. It is estimated that every boat owner likes to sail the seas, but how can a boat without power sail forward and ride the waves? For more information about Yamaha Boat Engine 4 Stroke, please contact KLS Supplier:
• +8615094051894
• inquiry@klsautoparts.com
• Room 1705, Yihe Blue Diamond, No. 154, West Section of Second Ring South Road, Yanta District, Xi'an City