my ski started by turning over a couple time then cutting out . i thought it was low battery charge so we charged it ,then it just made me mad so i stopped went and messed with it to day and will not start for anything , ran it the night before the starter did that stuff, so today i tried it and it turned over and did not stop until i let go of the button , but!it wouldn't start for anything! choked it and even check the spark on the plugs any help ?