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Cub Cadet 125 Fuel Problem

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John_CT

03-30-2005 06:49:35




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I have a Cub Cadet 125 that will run for about 10 minutes then die. I have relaced the bulb and the fuel line and still have the same problem. The fuel seems to stop flowing but as soon as I open up the fuel bulb it pours in. I was wondering if anyone has seen or experienced this or could point me in the right direction to fixing it.




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Red Dave

03-30-2005 08:31:20




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 Re: Cub Cadet 125 Fuel Problem in reply to John_CT, 03-30-2005 06:49:35  
I have a 125 that would run for a while and die. It drove me crazy, I tried points, plug, rebuilt the carburator, swapped known good parts from my running 123 to try to find the trouble, new coil, new condensor, reset the valve lash, cleaned the carbon out of the cylinder head etc. Anything anybody could think of, I tried.

Finally, figured that the exhaust valve might be sticking open when it got hot. I tried Marvel Mystery Oil in the gas, and Mobil One in the crankcase. Worked like a charm. Mixed it strong for the first couple tankfulls, then backed off to an ounce or two to the gallon. Never died again.

A year or two later when I went inside it to rebuild the engine, I found that the exhaust valve had a bit of a bend in it, so I replaced it. Now I use a little MMO in both my 125 & 123, never another problem. Not trailer queens either, both get run hard.

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Phlogiston

03-30-2005 07:34:01




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 Re: Cub Cadet 125 Fuel Problem in reply to John_CT, 03-30-2005 06:49:35  
I think your coil is shot.



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Andrew Z

03-30-2005 08:13:53




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 Re: Cub Cadet 125 Fuel Problem in reply to Phlogiston, 03-30-2005 07:34:01  
I would try the points two, just replaced them on my 124 and solved that. Cheap fix about $8 at NAPA. I'm also in CT and should be a nice day to work on it!! high 60!!!
Andrew



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