I recently purchased a 1985 300D Turbo for my daughter, one thing I have noticed and can not figure out is the shifting.

If I get on it, it runs up to about 3000 RPM's and will not shift. If I go slowly it sihfts from 1st to 2nd some what rougly but the rest are smooth unless I get on it.

It takes it a while to get up to 60 mph and if I start going up hill it looses speed and is hard to keep it going. If I get on it and the kicks into a different gear it revs uo to 3000 RPM and slows down.

Any suggestions?

Thanks in advance.

Sherman