I'm having trouble with starting my 50cc motovox scooter it's two stroke. Have taken carb apart and cleaned it. I have good spark and compression. Have tryed starting fluid but won't fire.
Engine spark plug in what status is it ??? , it is easily screwed into your engine's throttle as it can get rid of compression if the engine bonnet thread is broken.
After the missed start attempts, the spark plug is always dampened with gasoline, the spark is no longer present because it is short-circuited by the existing moisture between the spark plug electrodes, it is very important that the spark plug must be clean, not wet.
Always after failing engine fails, put the spark plug out, blow the engine through a few short maneuvers, without the spark plug, then with another spark plug, carefully mount it not to cover the thread, and then mount the power cord plug to the spark plug, and try a start, if you have a shock of air, it is on the middle action.
Spark plug It is good to replace it with another one to be sure to start.
Always observe the distance of the external electrode from the center of the spark plug, this distance is very important, if it is too big it does not start, or it starts hard, goes off, etc., at a too small distance it does not turn and gets wet quickly, and the engine it worked badly.
The usual values for the distance between electrodes are around 0.7 ... 1.2 mm ... 1mm is a good distance.
The wet spark plug can be rebuilt by holding it with the electrode in the flame of a gas cooker.
Keep it in the oven flame until the outer electrode is bleached, then let it cool down normally, then clean it with a wire brush.
Follow the air route to the carburetor, do not be clogged with rags, if you have the air filter ok, etc.
As you described the symptoms, with a good spark plug, it should start.
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