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post #1 of Old 01-11-2009 Thread Starter
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Small engine question

Here's my tale of woe:

I loaned my Honda EU2000i generator to a "friend". Before I loaned it out, it ran like a top. Always started on the first or second pull, 100% reliable, no problems what so ever. It has a 4-stroke, 1 cylinder gas engine.

When it was returned to me, however, it did not run so well. It does not want to start cold and when it does, will only run (and not very well, at that) when the choke is fully closed. Any attempt to open the choke (regardless of engine temp) results in the engine dying immediately. When questioned, my "friend" indicated that the engine died soon after she started using it and she took it upon herself to change the oil (why, I don't know) and install a new spark plug. I've checked the plug for type and gap and they are fine. She claims she did nothing else to the engine.

Based on all that, does anybody have a clue what this person could have actually done to it or why it will now only run when fully choked? Thanks.
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post #2 of Old 01-11-2009
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Hmmmm....

Fast,

I've absolutely no specific reason to think this, but what the heck -- I'll take a swag!

Are you sure your buddy didn't mistakenly run diesel through it instead of mogas? That could kind of explain the mysterious oil & plug changes...
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post #3 of Old 01-11-2009
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It sounds like a blockage in the fuel system. Does the fuel system have an on/off valve that's partially off? Can you see any crud in the fuel tank? Does it have a fuel filter? If all that checks out I would suspect a clogged jet or injector.
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post #4 of Old 01-11-2009 Thread Starter
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My friend owned this unit before selling it to me, so I assume she knows not to put diesel in it. But I am now starting to suspect old or dirty gas and will pull the carb off and soak it in carb cleaner overnight. I can find no fuel filter other than the debris filter in the fill spout.
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post #5 of Old 01-11-2009
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This "friend" wouldn't happen to be a woman scorned?


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post #6 of Old 01-11-2009
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Bad gas / water?

Sounds like bad gas or water. Drain gas tank, carb bowl and add new gas. Make certain there is no leak in the fuel line too.

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post #7 of Old 01-11-2009 Thread Starter
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This "friend" wouldn't happen to be a woman scorned?
Not unless I'm an old lesbian lover of hers.
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post #8 of Old 01-11-2009
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By any chance did she run 2cycle gas through it? Cleaning the carb and fuel line should fix it. A friend of mine ran 2cycle through my 4 cycle weed eater and it had the same problem until I took it apart and cleaned it out.
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post #9 of Old 01-11-2009
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I think maybe your friend used old, cruddy gas. In my experience, Honda's carb jets can clog easily from contaminated gas. During my last clogged jet problem, I would take the carb completely apart and soak it in carb cleaner. The motor would run like a top for a week and then go south again (same symptoms as yours). I'd clean it again and get another week. It was recommended that the carb be cleaned in a ultrasonic cleaner and that was the only way to really clear a clog. I didn't have an ultrasonic cleaner, so I ended up buying a new carb body and that resolved the problem.
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post #10 of Old 01-11-2009 Thread Starter
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By any chance did she run 2cycle gas through it? Cleaning the carb and fuel line should fix it. A friend of mine ran 2cycle through my 4 cycle weed eater and it had the same problem until I took it apart and cleaned it out.
If you mean did she mix gas and 2-stroke oil and fill the tank? I doubt it. Again, she owned this generator before selling it to me, so I assume she knows it takes straight gas.
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