roll him on his back, start at the sternum, insert knife, being careful not to puncture the gut sack, from this point onwards, cut from the inside of the hide, pulling upwards on your knife, and down towards the crotch. (Or use your gut hook) If using a regular knife, put two fingers in along side the tip, to protect the gut sack.
Cut around the dangly bits, and the arsehole. (Or get the arsehole to stand back

)
Trim back the diaphragm, and tie off the bladder, and large intestine so they won't leak. Work the arsewhole through the opening you created when you cut around it, and pull out to the rest of the guts. (You may have to catch the guy first

)
Roll on his side, and pull and trim until the guts are removed.
Make a small incision in the neck. Pull out the wind pipe. Sometimes you can pull it completely away from the lungs and out this opening, if not, just cut it.
Reach up into the chest, and pull the lungs, and windpipe out.
Rescue any guts you want to eat.
Wipe down the cavity, you've gutted a bear.