so I ordered a seat off a 2006 vn900 with less then 150 miles on it from ebay. won the auction at $45, $20 shipping, yeah i stole it! So its been sitting in the garage for about a week and finally got around to the install last night.
once th fabric is out of the way take your 5/16 bit and drill a whole through seatpan (directly center of the two holes on the upper seat. while you have that bit also drill a hole through the rear fender in the center of the seat support bracket.
next im installing the pan bracket. i had to improvise using what i had lying around, so i cut a 3" piece of metal from a ruler/square i had lying around (used dremel for cutting). next find your center and drill your 5/16 hole. switch to your 11/32 bit and drill your 11/32 holes on each side of your 5/16 hole( i didnt drill into the seeatpan with the 11/32, i just used screws). next i used a routing bit to square the 5/16 hole up so the carriage bolt would sink (also square of the hole in the seat pan at this time). feed the 5/16 bolt through bracket and pan, and screw in sides of bracket with 11/32 screws. you should now be able to re-staple your fabric.
you should now be ready to mount the seat. wedge the tongue in the front of the seat as forward as possible, line your bolt with hole in the fender. feed it through, push on your washers(rubber facin up), and thread on the wingnut and your good to go.