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Had a Koehler courage that seemed to run fine, but power was low. Checked plugs, one was wet. Pulled the valve cover (hard to do, bolts frozen), found one of the studs that supports the exhaust rocker arm had backed out, rocker arm had moved off to one side, pushrod was bent. Loctited and...

I have seen others write about getting bad head gaskets, which leak latterly. You might try a new gasket and check for leaks?

You may have an air leak, which is making the mixture too lean. Look for a cracked hose or bad crank seal. Some spray carb cleaner on suspect parts while it’s running, if it dies you found your leak

Four terminal solenoid, so you should have 2 heavy wires (one from battery, one going to starter) and two smaller wires, one should go to ground (does it). The other wire is part of a series circuit that runs from the battery, ignition switch, seat switch and PTO switch and possibly a switch on...

I have a Bad Boy with a Koehler engine, it’s built like a tank. If you have hilly ground to mow the weight will work to your advantage, just remember you can get into serious trouble combining speed and lateral travel on slopes. A fabricated deck (as opposed to stamped) is a plus if there is...

I have a situation similar to yours, about 10-15 acres, former pasture, some clear, some young hardwoods, flat to hilly. The fields had been neglected when we moved in, briers over my head, thick stands of Johnson grass, various trees. Thought about getting a bush hog / tractor (not good under /...

I have a 2009 Bad Boy ZT, changing the pump belt is my least enjoyable maintenance task. Having said that, it consists of - letting the tension off the blade belt - removing the PTO clutch cable - removing the nut from the pump belt tensioner - loosening the lot of the pump belt idler to the...

I will probably catch some flack for this... We have about 12 acres that I try to keep free of briars and high weeds, it’s all former pasture, some slopes up to 20 degrees or so. When we moved here it hadn’t been cleared for years, in some places the briars were over my head. So I bought a 2009...