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K. Wiggins
K. Wiggins, ASE Certified Technician
Category: Small Engine
Satisfied Customers: 2438
Experience:  AA in automotive Technology, 15+ years in the trade
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I have a honda mower with a jaaa-6901829 s3l engine .. It

Customer Question

I have a honda mower with a jaaa-6901829 s3l engine .. It had been under water. I cleaned the carb but the engine would run at a very low idle and stall. Took it apart again and upon starting it began to run at a very high idle.
JA: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean?
Customer: yes
JA: Do you plan on doing the work yourself?
Customer: yes
JA: Anything else we should know to help you best?
Customer: not that i can think of
Submitted: 1 month ago.
Category: Small Engine
Expert:  K. Wiggins replied 1 month ago.

Hi, when you had the carb apart did you blow all the passages out with compressed air?

Customer: replied 1 month ago.
I did the first time I had it apart.the second time I just used carb cleaner
Expert:  K. Wiggins replied 1 month ago.

It's very likely the carb cleaner pushed debris out and that's what the current issue is. I would pull it back apart and soak the carb for 10-15 minutes in a commercial carb dip, blow all passages with compressed air and reassemble. This will remedy any further debris clogging the jets.

Customer: replied 1 month ago.
would clogged jets cause it to idle very high 'like the governor is wide open?
Expert:  K. Wiggins replied 1 month ago.

If an air passage is clogged it will do that, the jet being clogged will cause it to run slow as it did at first.

Customer: replied 1 month ago.
ok I guess thats all I can do at this point. Thanks
Expert:  K. Wiggins replied 1 month ago.

That's pretty much it, as long as the linkage moves freely for the governer to control overspeed it's in the carb istself. Good luck with it and thanks for using Just Answer!

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