Hello All,
I've got a Kohler 26hp, 747cc, 7000 series, KT745, V-twin on a Husqvarna zero-turn. It has a manual choke (cable type).
It has slowly started running rough. At all throttle speeds and when warmed up, the engine rpms surge up and down, and at full throttle it pops through the muffler a little bit. I have to apply the choke to start it even when warm. Importantly, if I give it some choke the rpms come up and the engine smooths out. If I dribble some carb cleaner down the carb, the rpms come up and it runs smooth as well.
Looks like I've got either a vacuum leak problem or a fuel starvation problem. I'm going to start basic troubleshooting, but if anyone has been through this with their Husky/Kohler already and fixed it, please let me know!
I had a leaky passenger side valve cover. I fixed that wondering if it was causing a crankcase pressure problem that was slowing down the fuel pump, but no help there. Leak stopped but no improvement on engine running.
Thanks for reading!
Cutitall
I've got a Kohler 26hp, 747cc, 7000 series, KT745, V-twin on a Husqvarna zero-turn. It has a manual choke (cable type).
It has slowly started running rough. At all throttle speeds and when warmed up, the engine rpms surge up and down, and at full throttle it pops through the muffler a little bit. I have to apply the choke to start it even when warm. Importantly, if I give it some choke the rpms come up and the engine smooths out. If I dribble some carb cleaner down the carb, the rpms come up and it runs smooth as well.
Looks like I've got either a vacuum leak problem or a fuel starvation problem. I'm going to start basic troubleshooting, but if anyone has been through this with their Husky/Kohler already and fixed it, please let me know!
I had a leaky passenger side valve cover. I fixed that wondering if it was causing a crankcase pressure problem that was slowing down the fuel pump, but no help there. Leak stopped but no improvement on engine running.
Thanks for reading!
Cutitall