If you got one of those mini screw drivers, you can use the little o-ring from that on the fill hole screw. I did that with my KFL and it solved my slight leak.
Unfortunately, without that o-ring the screw driver came apart and I lost some parts while out & about.
Fortunately, I also got one with my R91 and KFL+ and I already had one from an eyeglass repair kit. They're a dime a dozen.
Unfortunately, without that o-ring the screw driver came apart and I lost some parts while out & about.
Fortunately, I also got one with my R91 and KFL+ and I already had one from an eyeglass repair kit. They're a dime a dozen.