SB isolation play - ok to give up after the turn?

[RichieRich]

Villain is LAGish - 40/16/1.3.

Party Poker 10/20 Hold'em (6 max, 6 handed) converter

Preflop: Hero is SB with A[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">2 folds</font>, CO calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, CO calls.

Flop: (5 SB) 6[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, CO calls.

Turn: (3.50 BB) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets</font>, Hero folds.

Final Pot: 4.50 BB

Given that I raised to isolate out of the SB, I assume I should have bet the turn. I just figured give up entirely on putting any more money in on this hand as I could easily be behind or bluffed off mine pretty easily. Is this just too weak?

if you do bet the turn, are you auto-folding to a raise?

(hope this is not incredibly standard)

[Derek123]

I think you need to bet this turn. he is likely calling the flop with a very wide range wich is correct if you easily c/f the turn

[Digs]

I bet the turn, fold to a raise, and probably c/f the river like a girly-man.

[smurfitup]

you have to bet the turn... you can easily have the best hand there... pretty easy fold if raised.. if called, re-evaluate on river... if the river is harmless, sometimes i check-call, sometimes i check-fold.. depends on the player, table, my image, etc.