OEM Svoemesto Kayfun Lite Plus v2 fill hole screw oring dimensions as measure by me on a Mitutoyo digital caliper. Note this is a used oring I just took off to measure trying to be as careful as possible to get an accurate read.
OD 4.3 MM
ID 2.14 MM
H 0.93 MM
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Hope this helps.


In another of the Kayfun threads someone mentioned that the first of the clones of the mini appeared. Don't remember where, it wasn't FT, perhaps heaven's gate, East gate, wish my memory was sharper. If its important to someone, just pm me and I'll hunt through my subscribed threads to get the info for you.I don't think you'll find a kayfun mini in stock anyway.
I had bought a couple of those lamps myself because there is no way I can build coils without some type of magnification. what I ended up with is one of those visor type magnifiers, it also has lights on it although I don't use the lights but the visors has worked the best for me. harbor freight for less then 10 bucks.How about we say "well seasoned"..... I have a great selection of magnifying lamps to help my eyeballs. I'm not gonna let anything slow me down until I'm officially told I have to......![]()
Is this what you're talking about?I had bought a couple of those lamps myself because there is no way I can build coils without some type of magnification. what I ended up with is one of those visor type magnifiers, it also has lights on it although I don't use the lights but the visors has worked the best for me. harbor freight for less then 10 bucks.
I have a second R91 coming in this week. I might brush it, but i kind of like the name on the atty. Love that SOV kit. View attachment 330392

Dude! You're 54. You know nothing about old....yet.It's tough to get old.
Dude! You're 54. You know nothing about old....yet.
Those are some sexy calipers you have there, do I smell a fellow machinist?![]()
Is this what you're talking about?