2-strokes can be difficult and seemingly temperamental, though there is usually a reason for that.
To start and run an engine needs... Fresh fuel is important and the right amount being delivered into the cylinder. Good compression. A strong spark at the right time.
Basically, if there is a good spark and the spark plug is becoming wet there would seem to be all the ingredients and the engine should start.
Sometimes the plug quickly becoming wet is a sign the crankcase is flooded - in the old days some engines were fitted with a crankcase drain plug and removing it would allow a small amount of mainly oil would trickle out. Refitting it and fitting a dry spark plug would usually restore the engine to health, unfortunately modern engines don't have such a thing.
There is a reason why, mostly in small engines, a crankcase can become flooded - it is possible there is insufficient crankcase compression for a proper induction and to send each new charge to the combustion chamber. This is usually noticed after standing idle for the winter - the engine was fine last season but difficult to start next season. The crankshaft seals can lose flexibility and air can be drawn through them instead of through the carb; with small engines a tiny loss of crankcase compression can have a large effect...
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2-strokes can be difficult and seemingly temperamental, though there is usually a reason for that.
To start and run an engine needs...
Fresh fuel is important and the right amount being delivered into the cylinder.
Good compression.
A strong spark at the right time.
Basically, if there is a good spark and the spark plug is becoming wet there would seem to be all the ingredients and the engine should start.
Sometimes the plug quickly becoming wet is a sign the crankcase is flooded - in the old days some engines were fitted with a crankcase drain plug and removing it would allow a small amount of mainly oil would trickle out. Refitting it and fitting a dry spark plug would usually restore the engine to health, unfortunately modern engines don't have such a thing.
There is a reason why, mostly in small engines, a crankcase can become flooded - it is possible there is insufficient crankcase compression for a proper induction and to send each new charge to the combustion chamber.
This is usually noticed after standing idle for the winter - the engine was fine last season but difficult to start next season. The crankshaft seals can lose flexibility and air can be drawn through them instead of through the carb; with small engines a tiny loss of crankcase compression can have a large effect...