From day one I was told by a BW35 engineer to always reverse into your garage when you put your P6 to bed.
The reason being when you first start up the revs are higher on the choke and when selecting reverse you will get that awful clunk.
Something you dont get in forward gears.
I pulled the wing off as I didnt have a pit to work in and the bloke I bought it off said "pull the wing off". No written instructions. Just four HT bolts, the new bar and the egerness of a 16yo school boy on heat