Tartan 27' owner
Join Date: Jan 2008
Thanked 141 Times in 133 Posts
Rep Power: 10
Re: Engine almost stalling then recovering
Remember the old Texaco commercial: "Do you know what is in your tank?"
Probably not but I have owned a now 45 year old Atomic 4 for over 10 years. Ran into a similar problem that you are experiencing: engine revs unpredictable to the point of stalling.
We had dirty fuel in our tank. We kept cleaning and draining the carburetor but the problem would eventually return. We nearly always found crud in the fuel drained out of the carb by the main passage bolt/plug.
That winter I pumped out our half empty 20 gallon tank and at the bottom of the tank I found what appears in the picture below. This is the result of E10 gasoline that sheds its ethanol which attracts water and breeds bacteria; crud. Your corn tax dollars at work.
Good idea to also replace your rubber fuel lines as they can corrode from the inside and if they are old, they may not be rated for E10 gasoline.
Here is the pic:
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Last edited by CalebD; 07-25-2013 at 12:44 AM.