SnowRidge
Elite Member
Went on to the Kohler web site and clicked on problems and got connected to expert who gave this advice.
This is where you have to decide if the problem is in the engine or the transaxle. If the engine rpm stays pretty much constant, then I'd look at the motion belt system first. If the engine bogs down hard, like it's struggling to pull, then I'd look at the braking system first. If the engine loses a few rpm but doesn't seem to be straining, then I'd go to the transaxle. If the engine sounds loose, like it wants to over-rev or blows black smoke then pull the spark plugs and check their condition. If the engine just sounds weak, you may have a fuel delivery problem.
Personally, just from what you have described so far, you may have a transaxle that's not cooling. Check that the fan is in one piece and that the transaxle is clean. That fan is essential for the Hydrostat to work and grass built up on the unit can also allow too much heat to build-up which thins the oil in the transaxle.
Thought I would pass this info along for your input as well.
PJ
That information is useless. Their "expert" system thinks your Kohler engine is powering a belt driven hydrostatic transaxle in a lawn tractor.