New owner here. Bought an magnatrack mh5000, didn't run, all, and I mean all hydraulic lines were bad. Initially tried replacing what was bad for testing, that was a disaster. Took carb off, ultrasonic cleaned it, replaced covers, gaskets float etc. New ignition coil, new wires, new plugs, I now can start it, runs good at 3/4 throttle and load, if I engage overspeed or any function with tracks, it sputters. Motor is an older kohler 20hp magnum. Anyways I'll keep it at that. Getting closer, I can now dig and beat around with it, it's a work in progress.