How do you change the outer primary dyna?

It is a simple enough procedure. However i suggest buying the repair manual. Torgue on the bolts is only about 12 ft lbs but they need to be tightened in the proper sequence. Always snug them all before tightening any. It is very easy to break a tab on the primary and even easier to strip the screws. Have a new gasket just in case. Not always required though.