i have a 1984 200s with now an 81 200 back end, the sprocket is much bigger on the 81, and i have a brand new chain that is perfect length for the smaller sprocket, what i am wondering is if i can swap sprockets. the 84 is four bolts, and the 81 has a guard around the sprocket with bolts on the out side and inner side, i can only get out to my trike on weekends and i have a ride planned so any help appreciated http://tinypic.com/view.php?pic=35a7...g=200+back+end that is the back end i am using, http://cgi.ebay.com/ebaymotors/Honda...ht_7091wt_1562 that is the sprocket i want to swap with