I'm hoping someone can offer some help on my Sherco 290 which has no spark. Last time out it was troublesome to start and kicked back an ran backwards a number of times which I haven't had before. I then got it running forwards, but when I stopped it to refuel I couldn't get it to restart. Checking the spark plug has shown there is no spark when I kick it. I Have checked over all the wiring and cleaned the contacts and earth points. I disconnected the engine kill switch to confirm it wasn't