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Hello, I'm struggling to find some good help with this old RM250 it's a 1985 we got as a project to restore for my dad.
Currently it has a new top end .030 overbore carb off of a newer rm. Clean new jets 170main 55pilot starts right up first or second kick
It has zero umph on bottom end there is a very gradual grade in our yard and if I try to pull out from bottom of yard it won't pull, I have to keep rpm up and ride the clutch to get it up through the yard.
Once you are able to get it going and rpms get up it runs great and pulls hard but low end is garbage,
I'm at a loss hoping there's some old school gurus that can help
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