Perhaps the fall of the motorcycle and the problem appeared just a coincidence in time.
I think if the engine runs on one cylinder is not a mechanical problem.
I press the start button and the starter turns the engine, but the engine does not start.
I unscrew the candle from the front cylinder and put it on the wire.
I press the start button and the engine starts and runs.
I see a spark on the twisted candle.
Based on this, we can assume that the ignition coil and spark plug are intact.
I put the candle in the cylinder, press the start button, the starter turns the engine, but it does not start.
I did this with both candles in the front cylinder several times with the same result.
I checked the petrol enters both cylinders
All four candles give off a spark.
I performed Blue Wire & Two Wire mods this spring.
And I drove more than 2000 kilometers during the season and had no problems with a motorcycle.