The four strokes are... Intake, Compression, Combustion, Exhaust.
just bought one it came with the original ad/manual says its a 192cc fourstroke engine
No it's a fourstroke
If the engine has an oil sump and an oil filler spout, it is a 4-cycle engine. On a 2-cycle engine, oil must be added to the fuel.
4-cycle
The key features of the Yamaha 9.9 fourstroke outboard motor include its four-stroke engine design, which provides smoother and quieter operation compared to two-stroke engines. It also has a compact and lightweight design, making it easy to transport and install. The benefits of this outboard motor include improved fuel efficiency, reduced emissions, and lower maintenance requirements. Additionally, the Yamaha 9.9 fourstroke offers reliable performance and durability, making it a popular choice for boaters looking for a dependable and efficient outboard motor.
Only if it is a 2 cycle engine and you mix the oil with the gasoline. If it is a 4 cycle engine, then using 2 cycle oil will destroy the engine over time. Use SAE 10w30 synthetic oil in your air cooled 4 cycle engine.
You can not use 4-cycle oil in a 2-cycle engine because the four cycle oil will not mix it is not designed to.Two cycle oil is designed to mix with fule to lube the two cycle parts in your motor.
Because a 2 Cycle Engine burns the oil in the gas, and in a 4 cycle engine, it sits in the oil pan, and it isn't supposed to burn it at all.
Absolutely not. Use only 4 cycle oil in a 4 stroke engine. 2 stroke oil is formulated to be mixed with gasoline and will not protect a 4 cycle engine.
A 2-cycle engine has fewer moving parts, is lighter, and produces more power per cycle compared to a 4-cycle engine. The main difference is that a 2-cycle engine completes the combustion process in one revolution of the crankshaft, while a 4-cycle engine completes it in two revolutions.
'a 4 stroke engine cycle' is usually what it is called...
the four stroke engine cycle