There are some cons (bad things) about the 2 stroke though. Here are some of the things that make the 2 stroke bad or not really wanted. Two-stroke engines don't live as long as four-stroke engines, the lack of a dedicated lubrication system means that the parts of a two-stroke engine wear-out faster. Two-stroke engines require a mix of oil in with the gas to lubricate the crankshaft, connecting rod and cylinder walls.
The two-stroke oil can be expensive. The mixing ratio is about 4 ounces per gallon of gas: burning about a gallon of oil every 1,000 miles.Two-stroke engines do not use fuel efficiently, yielding fewer miles per gallon. Two-stroke engines produce more pollution from, the combustion of the oil in the gas. The oil makes all two-stroke engines smoky to some extent, and a badly worn two-stroke engine can emit more oily smoke.Each time a new mix of air/fuel is loaded into the combustion chamber, part of it leaks out through the exhaust port.
The two-stroke oil can be expensive. The mixing ratio is about 4 ounces per gallon of gas: burning about a gallon of oil every 1,000 miles.Two-stroke engines do not use fuel efficiently, yielding fewer miles per gallon. Two-stroke engines produce more pollution from, the combustion of the oil in the gas. The oil makes all two-stroke engines smoky to some extent, and a badly worn two-stroke engine can emit more oily smoke.Each time a new mix of air/fuel is loaded into the combustion chamber, part of it leaks out through the exhaust port.
This is a picture of a Procircut Works Pipe. The other picture is a yYamaha yz125 Two stroke engine.
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