Good evening, I have a problem with my scooter I hope I find help here. Is an unusual mistake. I try to describe it. If I turn the spark plug out and do spark test, the spark is there! But if I turn a second spark plug back in and I generate compression then the spark is no longer there. If the candle is turned out the spark is there again. The engine turns a bit faster than with compression without the spark plug. ator? A bit more to the problem, 2-3 days before the starter ran about 6 km and got broken, replaced it already. The scooter is a Kymco downtown 300i / 2010 Thanks in advance….