20 Most Recent Toro 42 In Deck 19 Hp Kohler Courage Twin Cam Zero Turn Mower - Page 4 Questions & Answers

Similar issue - buddies CubCadet with Kohler Courage 22 would not stay running. Turned out the coils got rusty where it interacts with flywheel. cleaned the contacts (be careful to shim for proper spacing) and ran like a top.

the drive belt pulley probably needs replacing or the belt popped off the pully

First check to see if you have any leaks especially on the problem let side. This includes the wheel motor. where hydro oil comes out, air can go in. either way it sounds like you need to take your pump out and open it up and check for metal inside. If you do not have any metal inside check the 5 pistons to see if they are stuck. What series hydro pump do you have?10L 10A etc.

each side has is own pump and drive motor check the fluid level and then you will need to remove it and either replace it or rebuild it