My black K5 should be here Monday. I’ll be going over it with a fine tooth comb. I’ll let you know how it compares to the SJMYs.
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All is not lost after all. I was very frustrated with mine mainly due to the airflow being so much different. Curiosity got the best of me this evening so I took my SXK SS one apart and luckily all of the black pieces fit perfectly onto the SXK’s build deck… So for now I have a Black one that I am happy with the airflow on.
Here it is on top of my Black VT 133 and filled with some Virginia NET that @Kinnikinnick sent to me a while back to try out. (on my last 30ml bottle)
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Ok, Kayfun owners (V5 & V3 mini)… before I do an exhaustive search on the YouTube or Reddit, just thought I would ask here first…
Question: (Before I screw up my Kayfuns) Can the base be completely disassembled for a deep clean and maintenance procedure? I see a hex shaped surface when I take off the base plate; maybe that unscrews?
I also see a small set screw in the interior of the deck… air flow plug, perhaps?
Guidance from the masters, please! 
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Yes you can remove the center piece with the nut type thing but not sure about the set screw thing in the center to be honest I never noticed it before.
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It can be completely dismantled. Check out the djlsb review. He takes it apart starting around the 12:50 mark.
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Just another shout out for the Kayfun V3 mini… 
That this is one tough little tank!
I bet I have dropped my beater mod with the KF V3 mini attached more than a couple of dozen times at work now… battery door flies off… battery gets spit out of the mod 10’ across the room… I look down to see if the glass tank is shattered… 
Nope! 
Knock on wood! I’m a lucky so-and-so or this thing is indestructible! 
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I can’t even begin to tell you how many times I’ve dropped my kayfuns over the years and they still keep Going
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Not sure why people recommend something else when you ask for a Kayfun clone - anyways, people are strange… (be boring if we were all the same but I digress…)
Just got the KF5 Mini and the flavour 'k’n’ROCKS!!! It’s up there with my Siren, UTA2, Bellus, Serpent Mini, but it’s VERY airy MTL even at the tightest AFC setting. And at only 10W it still goes through the juice at 1ml/hr which is twice the rate of my Siren and UTA2, with the same coil… (doesn’t make sense, but it’s true…)
She is tasty but thirsty. I dont know where it all goes either, its the kayfun triangle
If anyone is looking for a seriously stout, dependable, and practically unbreakable work tank… again, I will throw the SJMY Kayfun V5 (Steel Tank option) into the ring. I’ve been using one for 4 or 5 months now… simply put… the easiest day to day work tank I have ever owned. 
I don’t own a KF V5 Mini, but I’m sure the steel tank version is just as indestructible as the tall boy. 
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Hehehe 
Day 2 of same coil as previous post. Getting the same flavour at 8W now as with 10W on Day1 and consumption is down from 1 ml/hr to 0.5 ml/hr… an exponential relationship between Watts and juice consumption?
And - SOOO easy to build…
I’ve also read quite a few FT comments about the mini surviving multiple drops even with the glass tank…
Hopefully, we’ll have another KF member added to the list soon… 
Kayfun Prime!
…basically, a baby KF V5, but with a reduced airflow; more like the original KF or Mini V3. Six air flow settings graduating from 1mm to 2mm.
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Sadly, I’m not overjoyed with the KF Prime. The machining on both models I’ve received is flawless (SXK & YFTK). However, I’m a little disappointed the ID of the air intake hole, underneath the coil, is NOT 2mm. It’s somewhere between 1.5 and 1.75 mm. 
Seems to me if you’re going to offer a 2mm air intake hole, all parts of the airflow system should be 2mm in size as well. Oh well… first world problems… moving on now.
Still, in all, the KF Prime will prove to be a nice MTL RTA for those in the market.
And for those who are interested… the clones I purchased did have the latest KF logo on the chimney and novelty etching of Russian whereabouts on the steel tank.
Exactly what is the specific problem that this causes in your use of the atty? I have 3 of the SXK versions and am happy with them for my use which is MTL NET. They do exhibit some issues with temp stability in TC mode, so I use them in wattage mode.
Currently my preferred atty for MTL NET is the 22mm Siren V2. They are rock solid in TC mode, and an easy build deck which will take a 3.5mm coil, also a fast dry burn and rewick for NET use. I recommend them highly. Also I give them a slight edge in delivery of excellent flavor profile vrs the PRIMEs.
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I sit right between being a MTL/DL hit type vaper… I use a KF 5 and Mini V3 most of the time… it seems to me the KF Prime has even less airflow than the KF Mini V3. So, that’s the issue for me… too little airflow. However, for true MTL type folks, it will vape like a dream! 
If anything, my wife and daughter will love this RTA and it will cause me to slow down and savor my NET vapes a bit more. 
The sxk prime is pretty good. It’s my first Mtl with a replacable coil. A 26650 lasts two days at 11 watts for me. I have been having problems though lately with the bottom section not wanting to open. I can’t decide between that and my berserker. Berserker tastes better but takes a leak 1/3 full, the prime doesn’t and seems less of a hassle.
Try to put the juice in the Berseker under the deck! :piscadela:
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