Can someone tell me how many turns the 'stop set screw' is supposed to be out on an 04 Raptor 660?
It's the big screw with the rippled edges.
Ours got messed with, now the raptor won't run right.

 

I think I read somewhere it was three ( 3 ) turns.

 

Pretty sure you're talking about the idle screw. To get the bike to run just turn it to middle position, start the quad and adjust until it idles somewhere south of 1k rpm or so. A little higher for cold weather. If you can't keep it running try using the choke for more fuel or cranking the screw the other way to lessen fuel.