ORIGINAL: dadragon
On the carb and exaust mounting I find using studs works the best that way you can locktite the studs in and use the star washer on the nuts without over tightening everything,on all my engines I check to see if the threads go to the bottom of the hole and use a bottom tap to make sure I get all the threads I can.never have ever lost anything because of lose nuts or bolts.just some thoughts.
Good idea with the studs.