hey everyone came across a neighbour today and he gave me an old suzuki atv for free,i think its from 1983 an seems to be in ok shape,i dont know much about fixing machines. he said it was running two years ago and then he stopped using it an has been sitting ever since. i drained the gas and tested the sparkplug plug has a good spark. changed the engine oil and everything.still wont start any ideas? i put a little gas in the piston and it almost started. should i keep trying this? any help?