that this is the right set up to convert my bike to chain. i have an 89 i think? thanks for the help
http://cgi.ebay.com/ebaymotors/Chain-Sprocket-Kit-GS550E-L-cast-wheel-78-80-1...
and here is a video of my bike, it has had alot more done since this video but there she is, im gonna buy the sprocket as soon as i get a comfirmation its the correct one
thanks ryan

http://www.youtube.com/watch?v=hQLJoSrt4Bo

The original chain swap was done by Barry Hutchinson. Another guy jumped in & did his at the same time & they compared notes as they went along. I expect the post is still out there. Part names & descriptions, maybe even numbers, were all over that long post.

Run a 17 tooth on the front. Im running a 16T now and Im very aware when my chain needs adjusting because the top of the chain will scrape the swingarm on big bumps. Not good. I do have shock that are an inch longer than stock so that will make a difference but for peace of mine Id (and am going to) go with a 17T front.

Note - bike bandit lists its sprockets incorrectly. If you look it will have fronts almost all 520 pitch and rears almost all 530 pitch. Take the time to go through their customer service chat option and make sure you're getting the right ones.
JTR816.?? is correct PN for rear with the ?s denoting your choice of teeth
JTF513.?? is correct PN for front etc etc.
As far as chains go...I go cheap. If you choose to do so as well, RK chains last much longer than bikemaster, and bikemaster masterlinks are much easier to install and remove than RKs. Purchase accordingly.