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hi I have an rm85 03 my uncle wound it out in 3rd and came off now it hard to keep the revs up and doesn't hit powerban also very sluggish what could be the issue 

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Sounds like it needs a new top end. Do a compression test a see what you get. Is it smoking more than usual? Could also be a crank seal on the trans side, also maybe reeds but I doubt it. 

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37 minutes ago, Blake Stephens said:

How do you do a compression test 

You need a compression tester and a spark plug socket+ratchet to remove the spark plug.

 

 

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