Yeah Rotax engines had it too.
I first noticed that drain bolt first time I rode my first 200.
It was a Monday, had driven the weekend to go pick it up in crazy weather.
The Monday was beautiful as I sat at work.
Half day sez I . Rode this local track, but being a Monday logging trucks were surveying on the track I was going to take.
Well. River crossing was ok last time I did it. Went for a ride on other side. Came back. Front wheel stopped on hidden rock and over I went.
Cursed myself for riding alone as I managed to get myself from underneath the bike.
Anyhoo. Dragged the bike out and kick kick.
Looked under the bike and saw the drain.
Would have been nice if I'd had some tools. . .