FD + Overs taking a stackadonk line

[thac]

Villain is 31/16/1, he kinda is aware of position, but it seems like he limps way too often. He calls down lightly and bets when checked to a decent amount (granted it's only over 60 hands).. What's my optimal turn line? I figured a bet would get raised by a jack maybe and would get called by a 9 but I figured he'd bet with a lot of hands if I checked to him and hopefully I could win the pot without showdown.

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

CO: $392.45
BTN: $116.45
SB: $298.75
Hero (BB): $117.50
UTG: $46
MP: $117.75

Pre-Flop: A[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/diamond.gif[/img] dealt to Hero (BB)
UTG folds, MP calls $1, CO calls $1, 2 folds, <font color="red">Hero raises to $6</font>, MP folds, CO calls $5

Flop: ($13.50) 9[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">Hero bets $10</font>, CO calls $10

Turn: ($33.50) J[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $20</font>, <font color="red">Hero raises to $101.50 and is All-In</font>