pocket jacks, flush possibility on the turn

[john smith]

Party Poker 2/4 Hold'em (10 handed)

Preflop: Hero is Button with J/images/graemlins/diamond.gif, J/images/graemlins/club.gif.
UTG calls, UTG+1 folds, UTG+2 folds, MP1 folds, MP2 folds, MP3 folds, CO folds, <font color="CC3333">Hero raises</font>, SB folds, BB calls, UTG calls.

Flop: (6.50 SB) 9/images/graemlins/spade.gif, 4/images/graemlins/diamond.gif, T/images/graemlins/diamond.gif <font color="blue">(3 players)</font>
BB checks, UTG checks, <font color="CC3333">Hero bets</font>, <font color="CC3333">BB raises</font>, UTG calls, <font color="CC3333">Hero 3-bets</font>, BB calls, UTG calls.

Turn: (7.75 BB) 7/images/graemlins/diamond.gif <font color="blue">(3 players)</font>
BB checks, UTG checks, Hero checks.

River: (7.75 BB) K/images/graemlins/heart.gif <font color="blue">(3 players)</font>
BB checks, UTG checks, <font color="CC3333">Hero bets</font>, BB calls, UTG folds.

Final Pot: 9.75 BB

BB is passive and check raises a lot, so I was worried about that. Should I have bet and folded to a raise on the turn?

[Gravy (Gravy Smoothie)]

Too weak. Bet the turn, call if you get checkraised. If the fourth diamond doesn't come on the river, then you have to make a decision.

As a side note, if BB checkraises a lot he's not passive.