hifi engine

Akai M8

I have an Akai M8 (1968) that has been carefully stored for a couple of years but is now slowing down on playback,FF.and rewind. The tape seems to be overly tight on the take up spool. Not sure but could this be the clutches?
Any service manual or how to would be much appreciated.

Re: Akai M8

Clutches can cause too much or too little tension on take-up, but the speed problem is probably caused by the pinch roller and/or capstan motor. Bad belts would be the culprit, or possibly dried lubrication.