I have a Hustler 251K zero turn with a Kohler CV22S motor in it. It's old. I've noticed that when I turn quickly the motor slows down like it's going to stall, and a bad smell that smells like propane exhaust. On straightaways it revs back up and the smell goes away.
The oil also seems to be disappearing but I can't find a leak. I would expect some black smoke if it was burning oil though, and I don't see or smell it, the motor is in the front of this machine so you'd think it would be noticeable, but then, what do I know?
Last year I rebuilt the carburetor, put in new coils, cleaned the gas tank, new fuel pump, put in a new head/valves on one side, breather valve, air filter, fuel filter, oil filter. This year it's going to be a new starter as soon as it ships to me and I put a new hydro hose on it but that's a different topic I guess.
I am thinking I may need to do the pistons/rings. Is this really hard? Is there something else I haven't thought of?
Thanks in advance for your kind advice.
The oil also seems to be disappearing but I can't find a leak. I would expect some black smoke if it was burning oil though, and I don't see or smell it, the motor is in the front of this machine so you'd think it would be noticeable, but then, what do I know?
Last year I rebuilt the carburetor, put in new coils, cleaned the gas tank, new fuel pump, put in a new head/valves on one side, breather valve, air filter, fuel filter, oil filter. This year it's going to be a new starter as soon as it ships to me and I put a new hydro hose on it but that's a different topic I guess.
I am thinking I may need to do the pistons/rings. Is this really hard? Is there something else I haven't thought of?
Thanks in advance for your kind advice.