Just finished my first oil change. Had to grind a 17mm wrench down like crazy to get the drain bolt off from in front of the left foot peg. What a major PITA! Makes ya wonder what Yammi was thinking when they designed the placement of that drain bolt.
I replaced it with a 13mm head so I never have to do that again! Never would have completed it without the tips here in the forum. Invested in a bike lift and that made things quite easy...especially replacing the lower cowl!