picked up a 1985 ATC70 for $160 not too long ago, its in pretty mint shape, owner didnt know its value i guess. it hasnt been run since 1993, and it still doesnt run at the moment. Its got a brand new spark plug, gets good spark, has compression, carb is all clean and gets gas, but it still wont run. i bought a carb kit and am waiting for it to come in. any ideas?