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-   -   FR691V Kawasaki Engine with low idle hunt (https://www.onlycubcadets.net/forum/showthread.php?t=63769)

MBman 04-14-2026 08:19 PM

FR691V Kawasaki Engine with low idle hunt
 
Have done all I know to do , cleaned out cooling fins, fresh gas new filters , plugs ect. Runs and mows great , just hunts idle at low RPM. I have found nothing wrong with the governor springs, cleaned carb with carb cleaner and run thru cleaner , no change. Even tried to adjust the "hidden " screw on top of the carb without change. What am I missing ? Or any other ideas
TIA
Ron

CubDieselFan 04-15-2026 12:14 PM

Did you remove the carb and take it completely apart to clean it?

MBman 04-15-2026 07:18 PM

I have not , but I was worried Id ruin at least a running mower.
it looks simple to remove :bigthink:

I thought that carb cleaner and run thru cleaner would work. In your experience is carb removal my next step. What would one clean that in , and will I need a carb kit - if there is such an item?

thanks for any insight

Oak 04-16-2026 04:51 AM

Here's a vid of a guy cleaning one. I didn't watch the complete vid but maybe this will help.

https://www.youtube.com/watch?v=jl1_eUAVm18


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