Boy oh boy - the questions!
Ok - the tank is unfortunately not mine. It's a friend's who also has a 550F. We were test fitting on my bike as his is currently indisposed. It is a CB750F, pre-'79. It fits like a glove, but you do have to trim the little studs on the frame under the front tank mounting rubbers, and cut the rubbers down. The 750 has a narrower front end than the 550 for one reason or another.
The rear of the tank sits perfectly on the frame. The 750F tank has two little rubber pads in the back end, and they sit firmly on the frame. Couldn't fit better. The rear rubber mount does not line up, but it's a relatively simple matter to secure the tank down to keep it in place.
The seat was a swap-meet find from last weekend. Paid $20 for it

. A little narrow for the 550, but could be made to work. I just put it on there to see what it would look like.
The tail light is a basic ebay cateye light. Go to the beginning of this thread to see how it's mounted to the 550 seat.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=4641352200&rd=1&sspagename=STRK%3AMEWN%3AITI noticed when removing the centre stand that the pin was inserted from the right side of the bike. I would have to remove the header to actually get it out far enough to remove completely. I got it out enough to get the stand off, but not without some serious effort. Perhaps it should insert from the left side of the bike where there are no pipes. Who knows.
I ride the bike daily - it's downstairs from my office right now. Hit the 'ton' every time I ride
