Just an FYI on the battery removel.
There is no way I could remove it without taking the passenger seat out - (number 5 hex, slide the seat forward-flat angle) and then the piece under the passenger seat (number 6 hex for 4 screws, they are really torqued on hard). This makes it really easy - I tugged, wiggled etc but could not get the battery out by just removing the A cowling.
Had a bettery tender jr hooked up all winter. The first time out it started hard. the second time wouldn't turn over. Back to the dealer (0nly 1 K on this new YP400) who found 2 cells dead and gave me a new battery.