2006 (I think ?) Walker Mower Model MTGHS 26 HP EFI Kohler CH26S.
I am more familiar with the EFI V-Twin Kawasaki problems. The Walker Runs fine for hours, then upon start up for the next mow it stumbles hard, won't rev up. After a 20 min or longer wait it starts and runs fine. Fuel filter, sending unit and pick up screen replaced. Tank drained and filled with high grade gas.
Thinking it is the EGU ? I read these had high failure.
Is there a way to test the TPS ?
Going to try bleeding the line next time in case of vapor lock, been 90 / high 80 degrees during the day.
Edited by trowel, May 13, 2015 - 02:47 AM.