On my RF01 I've had a constant leak from where the oil filler/cover meets the tank.
Turns out one of the 6 threaded blind holes is stripped out.
There is a lug of material on the tank that should allow for an insert.
The other option would be to go a size up. Current screws are M5-0.80 which seems small and too fine for the material.
Thinking of using something like this:
https://www.mcmaster.com/93715A605/
or like this without stakes:
https://www.mcmaster.com/90259A218/
Any suggestions? Anyone done this before?