NL 25 - Should I fold overpair on the turn?

Villain is 49/8.5/2.3 in 369 hands. He didn´t do anything out of line yet.

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($26.20)
Hero ($25.95)
UTG ($16.85)
MP ($9.60)
CO ($10.85)
Button ($14.65)

Preflop: Hero is BB with Jhttp://www.flopturnriver.com/phpBB2/...iles/spade.gif, Jhttp://www.flopturnriver.com/phpBB2/...miles/club.gif.
1 fold, MP calls $0.25, 2 folds, SB completes, Hero raises to $1.5, MP calls $1.25, SB calls $1.25.

Flop: ($4.50) 6http://www.flopturnriver.com/phpBB2/...iles/heart.gif, 9http://www.flopturnriver.com/phpBB2/...iles/spade.gif, 4http://www.flopturnriver.com/phpBB2/...iles/spade.gif (3 players)
SB checks, Hero bets $3, MP folds, SB calls $3.

Turn: ($10.50) 2http://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
SB checks, Hero bets $7, SB raises to $21.7

Hero??