hifi engine

teac x7-r take up motor rebuild

1st time posting to this forum. I have a Teac X 7-R r2r deck. All functions seem to work fine except the rewind & ff motors are a little sluggish towards the end of the tape. I have read that these motors can be " revived" by taking apart & cleaned. Anyone who could elaborate on this process would be most appreciated or if this should be left to a seasoned professional.