So far i have one engine that will start right up, but smokes a bit... my driver side just wont start i charged my batteries, hooked up a jumper pack to it, it clicks like its ready to try and start but it just wont. does it seem like a battery problem? or a starter problem, when i have the plugs and wires off i get it to almost turn over like the thing will keep trying to start but with low compression, but once those plugs are in, it just turn over at all... any ideas? starter problem? bad ground?