Hey guys, this is my last ditch effort at figuring this issue out. My Cub Cadet w/ a Kohler SV735 idles at slow speed fine but on high speed it surges. I can definitely see the governor moving back and forth causing the surging which I've read is generally a lean condition on these.
I've done the following:
1. Adjusted the governor to ensure the shaft is up against it at the correct linkage position,
2. Disassembled the carb, removed the main jet and ran small bristle brushes through all passages, ran carb cleaner through them all and also compressed air. The carb looked brand new inside.
3. Removed float and ensued needle sealed properly. Float level seems fine but i"m basing it off of auto carb float levels.
4. I've not yet checked for vacuum leaks at the intake and carb base but I'd assume if there was a leak it'd rear its head at low speed idle as well.
5. Removed filter to ensure it wasn't restricting flow even though it's fairly new.
6. Removed gas gap to make sure there was no issue w/ fuel flow or vacuum cavitation.
7. Ensured fuel filter was flowing well.
Thanks for any input you can offer.
Dave
I've done the following:
1. Adjusted the governor to ensure the shaft is up against it at the correct linkage position,
2. Disassembled the carb, removed the main jet and ran small bristle brushes through all passages, ran carb cleaner through them all and also compressed air. The carb looked brand new inside.
3. Removed float and ensued needle sealed properly. Float level seems fine but i"m basing it off of auto carb float levels.
4. I've not yet checked for vacuum leaks at the intake and carb base but I'd assume if there was a leak it'd rear its head at low speed idle as well.
5. Removed filter to ensure it wasn't restricting flow even though it's fairly new.
6. Removed gas gap to make sure there was no issue w/ fuel flow or vacuum cavitation.
7. Ensured fuel filter was flowing well.
Thanks for any input you can offer.
Dave