What is the diffence between a two stroke and a four cycle engine on a weedeater?

Question

READ THE QUESTION IT SAYS FOUR CYCLE NOT FOUR STROKE

Answer 1

Four cycle is the same thing as four stroke - just different terminology.

Wikipedia's entries on four- and two-stroke engines have pretty good explanations and animations demonstrating the difference - you might want to check them out. The major difference in operations is that a four stroke engine completes a cycle in four motions (2 revolutions) rather than 2 (1 revolution).

In general, though, four-stroke engines run a bit cleaner, and they take regular gasoline as their fuel (as opposed to a gasoline-oil mix). Several portable power equipment companies started experimenting with small 4-stroke engine technology in the late 1990s to try and meet more stringent environmental regulations. At the time (and I don't know if they've addressed this), there were problems in some uses because the four stroke engines needed to stay in a basically vertical position, which made them impractical for certain applications such as weed trimmers and chain saws.

Answer 2

technically the two strike fires twice as often, and puts out more power. On a two-stroke the downward motion of the pistion and the vacumn it creates sucks the gas into the intake port, so the exaust stroke is also an intake stroke as well. The 2 stroke actually fires every other stroke (or movement up/down). Four strokes wait a stroke between, intake, compression, fire, exhaust. 2 strokes do not require oil because it is in the fuel, and generaly are less fuel effiecient and more noisy. Two strokes also tend to put less torque to the ground for the fact that they produce their horsepower at higher rpm's. Four stroke tech. has way surpassed 2 stroke now, most every item now can be bought with a four stroke, including weedeaters, which are a lot quiter. If you have more questions check this link below.

http://www.howstuffworks.com/two-stroke.htm

Answer 3

A two-stroke engine requires a mixture of oil and fuel, is cheaper, and probably runs cooler than a four-stroke, but they'll both weedeat like a category 5 tornado.

Answer 4

Never heard of a 4 stroke weedeater. Four cycle enginges require a crankcase with oil which means a bigger bulky heavy engine that you have to keep upright when it's running plus the fact that they don't run anywhere near as fast as a two stroker.

Answer 5

2-stroke engines typically need a different fuel mixture of gasoline and oil. 2-stroke engines can typically handle higher RPMs and heat levels without damaging internal components.

I can give a detail of the internal difference between a 4-stroke and 2-stroke engine, but I doubt anyone is interested ;)

Answer 6

You have to mix the gas with oil on a 4 stroke. a two stroke has a block that holds oil....like your car engine.

Answer 7

they both need oil in gas period. and the 4 stroke has more moving parts and valves to adjust. the 2 stroke is simpler and more reliable. I used to work on them in a power equipment shop.

Answer 8

You have to mix oil in the gas on a two-stroke engine DUHHH

Answer 9

You add oil to the gas on two cycle engines.

Answer 10

Two more strokes.