im lost on the river

[nadical]

villian is a 40/20/1
Party Poker 5/10 Hold'em (6 max, 6 handed) converter

Preflop: Hero is MP with 7[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, CO calls, Button calls, <font color="#666666">1 fold</font>, BB calls.

Flop: (8.40 SB) 2[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, CO calls, Button folds, BB folds.

Turn: (5.20 BB) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, CO calls.

River: (7.20 BB) J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>

[Levarkin]

I'd bet and fold to a raise. Unimproved top-pair hands like AK, AQ, and KQ will often call down here. I see that the villain is somewhat passive, but within a loose player's cold-calling range, I'd be surprised if we didn't get raise by the turn if we were crushed. Likely enough to be a hand we're ahead of.

The pre-flop raise might have been a little frisky.

[nadical]

you should be raising this pf

[Levarkin]

Should I? Maybe that's my leak . . .

I'd say it's fine, but close to the borderline, though I know there are many on this forum who would disagree.