Right Stuff gasket maker

Other stuff I found that works great is ThreeBond Products.
1215 is the best in my opinion, it's the same as DucatiBond 1215, it has about 15 minute work time. I used it on the side cover on me 833 and it never leaked. It also cleaned up real nice after years in a 2 stroke case. It is the same as 1211 but has longer set up time.

https://www.amazon.com/dp/B073K1919W/?tag=fabo03-20