I got my blaster from someone and it started perfectly then my friend rode it then I rode it and it cut out and wouldn't turn over it would clutch start but wouldn't turn over so I thought it was the spark but that wasn't it so I just let it sit for a week then tried to kick start and now it's hard to go down and just doesn't sound like it's even trying to start and made a hissing noise please help me figure out what's wrong