I normally refrain from negative comments however, there is cause to be
concerned in this instance.

From what I know/remember, they were very cheaply built.. There was a
serious problem with the hull to deck joint that cause some boats to ship
water when sailed hard and 'rail down'. They were lightly/poorly built and
suffered after a few years of coastal service.

The only Yorktowns I am personally familiar with were 'marina queens' and
primarily liveaboard boats because they had a roomy interior.

If anyone would like to take exception to these observation, they are
welcome, but every boat has it's critic and the OP wanted info.

Steve
s/v Good Intentions