Have a Walker Mower with 26hp Kohler Twin EFI engine and 54" side discharge deck. Engine lacking power. Sounds like it's missing. Tried changing plugs, fuel filter, and air filter - made no difference.
Especially lacking power at first start-up and gains some power after mowing a while.
There is no longer a Walker dealership or shop for service in this area.
Needing advice !
Also, looking for a place to purchase a service manual for this mower.
#2
SONOFADOCKER
The valves could come out of adjustment - common that the locking nuts back off . Simple fix with feeler gauge and hand tools .
