Hi I'm rebuilding an 83 dt125lc at sum point the thread on the weight shaft has been damaged does anyone know the thread profile on this shsft.
Unfortunately, the LC engines are different to the R engines. And that's quite a specific question.
Have you looked at the parts catalogue. Do you have the nut for the end? Might be worth having a look.
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buy yourself a thread restoring file - they usually have x8 different thread profiles on them