66 hand - 6 bb and a limper

[Isura]

These situations seem to be costing me money. How terrible is this push, assuming the limper is fairly loose (any pair, any face, Axs let's say). More importantly, my position blows which makes this worse. THoughts?

***** Hand History for Game 2489604325 *****
NL Texas Hold'em $30 Buy-in + $3 Entry Fee Trny:14605779 Level:4 Blinds(50/100) - Saturday, August 06, 19:27:39 EDT 2005
Table Table 11740 (Real Money)
Seat 3 is the button
Total number of players : 7
Seat 7: HERO ( $570 )
Seat 6: M_Heat ( $1657 )
Seat 10: Silverline3 ( $1802 )
Seat 5: lilwinston44 ( $625 )
Seat 4: ox_X_xo ( $1196 )
Seat 3: jaz_7 ( $1170 )
Seat 2: strikAnywher ( $980 )
Trny:14605779 Level:4
Blinds(50/100)
** Dealing down cards **
Dealt to HERO [ 6c 6s ]
M_Heat calls [100].
HERO is all-In [570]