I've been getting burned on overpairs lately, so thanks for advice on this.

With no read, what would you do after this medium size turn bet and why? I ended up min-raising which is a bad play vs potential str8 draws, but I was aiming for a cheap showdown (check behind river or probably fold to a 3 bet). Is this weak or what?

And what if his bet was $7? WIth no read I fold to a full pot bet on this board.

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) FTR converter on zerodivide.cx

UTG ($3.95)
UTG+1 ($52.30)
MP1 ($27.65)
MP2 ($8.10)
MP3 ($14.40)
Hero ($30.15)
Button ($26.05)
SB ($10.35)
BB ($9)

Preflop: Hero is CO with K, K.
1 fold, UTG+1 calls $0.25, 1 fold, MP2 calls $0.25, 1 fold, Hero raises to $1.25, 3 folds, UTG+1 calls $1, MP2 calls $1.

Flop: ($4.10) 5, J, 8 (3 players)
UTG+1 checks, MP2 checks, Hero bets $1.75 (bet more here?), UTG+1 calls $1.75, MP2 folds.

Turn: ($7.60) T (2 players)
UTG+1 bets $4 Hero???
Final Pot: $7.60