I can confirm changing the antifreeze stopped the leak. Been about 3 months and a dozen or do rides and not a drop leaking.

Looks like the sediment tube. Has a clear end on it so you can check for water in the airbox without having to open it up.

Mine leaked at first but slowly stopped and completely quit at 20 hours/200 miles. I have the seal in case it ever stars again. After researching it this is a very common problem and usually corrects itself in about 200 miles. I only had to add a couple of ounces to the overflow so it did not leak much.

Somehow I managed to break the thumb throttle off and upon checking, it is only available as an assembly with the locking differential switch for $250.00! After taking the cover off there is a phillips screw that runs through the plate that the throttle cable hooks to that screws into the thumb throttle so it looks replaceable by itself. Anybody run into this and find an aftermarket one that works?

Skip to module 4 for CfORE 800/1000 https://www.youtube.com/watch?v=ju-mKydbefQ