1) reduce throttle to idle speed 2) move gear shifter to Neutral position 3) move gear shifter to Reverse position.
Combustion piston engines can have two different work cycles, 2-stroke and 4-stroke. 2-stroke tends to have a better power to weight ratio, but pollute more. A 4-stroke outboard is simply an outboard engine that works the same way as a car engine.
80 years.
Petrol engine? 4-stroke, no. 2-stroke, some.
The 850 model, 85 hp Mercury outboard, is a 2 stroke engine requiring a 50:1 fuel to oil ratio.
With a 2 stroke engine, you mix the oil with the gas. With a 4 stroke engine, there are separate tanks for the oil, and the gas.
This is a 2 cycle engine.
Whoever they can get the best price on it from.
The fuel mixture for a Yamaha 40 hp 2 stroke outboard engine is 50:1, gas, oil mixture. You should use new gas when you get the engine ready for the season.
generally speaking if it has valves its a 4 stroke 4 cycle engine......if it doesnt have valves then it is a two stroke 2 cycle...................
50 to,1
For the Mercury 9.9 Two Stroke Engine it is 50:1...
It could cause engine damage. We had somebody put 10W40 4 stroke oil in the injection oil tank of a 2 stroke sea doo pwc and it ran for less than an hour before there was significant engine damage. He is now forever known as Captain 10W40.