Removing driver seat 2006 royal star venture - 2006 Yamaha Royal Star Venture

SOURCE: Removal of factory seat on Yamaha Royal star 1300

The seat comes off with a key but I had to remove the passenger seat first unable to squeeze the main seat (what you need off) out from between tank and rear seat.Coolant resiviour and tool compartment is under there too.Good luck with that.It's the same as the ignition key. JM

SOURCE: How to remove the drivers seat on a 2004 royal

Look under the seat (either side) 1"-2" behind the back of the fuel tank; you'll see a nut holding a threaded shaft into tabs protruding from the frame. Loosen and remove the nuts on both sides, lift the seat up, until the threaded shafts are completely free of the tabs, then move the seat straight forward. That will free a catch, molded into the underside of the seat, from a loop in the frame that holds the back of the seat down and keeps the seat from moving side-to-side. Reassembly is in reverse order: there is a specification for the nuts - 5 ft.-lbs. (7 nm) - but it's usually sufficient to tighten the nuts snugly on both sides