So i just picked up a 731 for cheap. has deutz 2cyl air cooled diesel engine. previous owner says there was a bad injector that caused a hole in a piston. got it home threw the charger on it and it fired right up. i have a couple of questions. obviously one is, can this really be running on only one cyl.? it idles pretty rough but not what i would expect with a shot piston. also it sounds like a valve is bent possibly? looking for any help i can get on this one guys. also if anyone knows where i could get a wiring harness for this would be great thanks.