View Full Version : kohler loss of power

08-31-2009, 01:49 AM
I have a 25 hp kohler engine on an exmark lazer z. it was sitting idling and it shut off. I restarted it and now, it does not gain any speed or RPMs. I have cleaned the carb and same problem. If I spray carb cleaner in the carb, it picks up as it should (RPMs). I am stumped on what to do. Any suggestions?

08-31-2009, 08:04 AM
Check the throttle controls under/behind the carb, Make sure the governor spring didn't come loose when you removed the carb.

08-31-2009, 11:25 AM
throttle linkage and springs are all intact. Could the govenor be going bad? I tried a carb off of a 20 hp kohler and the same problem. should I be looking for an engine or what? I need help! This is my main mower!!!

08-31-2009, 01:04 PM
Post the spec numbers off this engine, It still has to be between the throttle cable and controls. Make sure the throttle cable didn't slide in the hold down clamp, A bad governor would let the engine over rev......

09-03-2009, 11:30 AM
still stumped. put on new fuel pump and still acting up. It did run yesterday but it also was doing the same thing. please help...