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LT125 runs for 5 mins

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lt125
4K views 1 reply 2 participants last post by  devbrenner 
#1 ·
All,
I was given a 1984 LT125 that had been sitting for a while. I cleaned out the fuel lines, cleaned the carb (though the choke is frozen closed) and the engine seemed to start running fine. For about 5 minutes. Then is started to hesitate, bog and eventually died. I let it sit for a while and is starts again. I let it sit overnight and it seems fine again, for about 5 minutes. I assume its getting hot.

I have the clymer manual for it, but it has little troubleshotting instructions for it. I heard someone say that the wrong plug will cuase heat problems, and so plan on trying that.

Does anyone else know what may cause this?

Also, Only 3rd gear seems to engage. If i tore down the tranny, cleaned the parts, and put it back, would this likely help? or am i looking at new forks (GL on that) or something.

Thanks for your time.
 
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