CV15 fuel stops flowing - engine dies

slomo

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I've never had a problem using those clear filters on gravity fed engines.
Me either. Those red plastic Briggs type filters are nothing but a large window screen inside.

slomo
 

Fish

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Don't let a clear filter trick you into believing that your running problems are from there.
Post your engine's spec numbers, please.
 

slomo

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Hi everybody,

New here and hoping someone can point me in the right direction. Kohler CV15 on Craftsman lawn tractor. The engine quits while running. I have a clear plastic fuel filter on it, and I can see there is no gas flowing. If I take the fuel line loose, let the gas start flowing, reconnect it, it will go again. It seems that the more I run the mower the more frequently it happens. I've replaced the solenoid on the carburetor, and confirmed the new one is working. I've replaced the fuel line, filter (x2), and the vacuum hose that goes from the engine head to the breather. I've removed the float and needle valve and cleaned the carburetor with spray carb cleaner. I've taken the gas tank off and thoroughly cleaned it. Air filter is in good shape. Yesterday the first time it happened I took the gas cap off to see it wasn't venting correctly, and gas started flowing. I cranked it back up, and seemed like it was good to go. Thinking the vent on the cap wasn't letting enough air in, I kept the cap loose and ran it. 5 minutes later same problem. I had to take the fuel line loose, let gas start to flow, reconnect, and it's good to go. Then repeat in 5-10 minutes.

The last thing I replaced was the vacuum line, which I did day before yesterday. I ran it for over 30 minutes with no problem, then yesterday it starts acting up within about 15 minutes. The only thing I can think of that was different from yesterday was I had the engine cover off replacing the vacuum line and didn't put it back on before ran it those 30 or so minutes. When I put it back in the shop for the night, I put the engine cover back on, and it was on yesterday when it started acting up again. Could something that's warming up be causing the problem? It's about got me stumped!

Any suggestions? Thanks in advance.
Engine cover off is not well advised. These engines are air cooled. They heat up fully in 1-2 minutes, darn near instantly. You can have big internal engine issues doing this. That engine cover directs cooling air to the engine block and head/s.

Also remove the engine cover again and clean off the block cooling fins all around the cylinder/s. This must be done yearly or more often if you have a lot of grass flying around the engine.

slomo
 
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