Authentic Svoemesto Kayfun 5

[Ca Ike]

Well got my v5 and so far I like it. Easy to build and really good flavor. I've got two issues that are annoying me though. First issue is unless the 510 screw is really tight the ohms jump around.

Second issue is juice feed. It wicks really well but holds the vacuum so well that once in a while I have to loosen the top cap to get the flow going again.

The first build worked great. Second is having the flow issue. The only thing I thought of is that the second coil is too high and the no more than 2mm above the air hole requirement is there because the coil also acts as a diverter of sorts sending the suction blocked from the air inlet by the coil, to the tank to pull juice.

Kayfuns are the only tank I have used that have been very specific about the height of the coil above the air hole. I went back to one of my kfls and was able to recreate the flow issue of my v5 just by having the coil 3mm above the air hole. Kind of interesting that the higher the coil is placed the greater the chance of dry hits, not from poor wicking but low suction from the tank. Tight mtl settings mitigate this effect.

 

[Ca Ike]

Ok guys, I need a bit of help. I thought I had the build on this set. I use the exact same build as quorax only spaced ,using a 6/32 screw(~2.8 mm),but I'm having major issues.

First of every build is popping like it has a hot spot. Test fire glows like it should but once wicked it's like a popcorn popper. Put the same build in my Calix and it's smooth.

Second is a juice flow issue. I thought I had it figured out but no matter what I do I cant get the juice to flow well. The vacuum is holding so well I can take the tank off, hold it tip up and not spill a drop out of the tank. The only way i can get juice to flow is to loosen the top cap or do a hard lung pull.




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[qorax]

Ok guys, I need a bit of help. I thought I had the build on this set. I use the exact same build as quorax only spaced ,using a 6/32 screw(~2.8 mm),but I'm having major issues.

First of every build is popping like it has a hot spot. Test fire glows like it should but once wicked it's like a popcorn popper. Put the same build in my Calix and it's smooth.

Second is a juice flow issue. I thought I had it figured out but no matter what I do I cant get the juice to flow well. The vacuum is holding so well I can take the tank off, hold it tip up and not spill a drop out of the tank. The only way i can get juice to flow is to loosen the top cap or do a hard lung pull.

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If it is popping (sound), it is feeding well, in fact more than needed, then how do you have a 'juice flow issue'?

 

[Ca Ike]

If it is popping (sound), it is feeding well, in fact more than needed, then how do you have a 'juice flow issue'?

Hey Stan. That's part of the puzzle. The pop is exactly what you get if you get a hot leg or the coil heats from one side instead of the center out, but it tests fine on a dry burn. I'm using rayon and have found with higher vg liquid, since it flows slower you can get hot spot popping without a hot spot. The surface fibers get dry, liquid in the middle fibers heats and gets thin, transfers faster to the surface fibers and the over heated coil section and it pops.

I know I have a have a flow issue because for one. I never see any air bubbles pulled in to equalize the pressure. I have to loosen the top cap to do that or I can get a small one if I do a hard lung pull. Two, I'm getting dry hits. Not the burnt hits but still dry. I do a hard pull or loosen the top cap to fix it. Happens about every 5 puffs.

Also, not sure if it's related, but the o-ring on my top cap seats and seals before the threads engage. I have to press down a bit to engage the threads

I've played with different amounts of wick, tail lengths, up to 3.5 turns open on the flow and still get flow issues.

The strange thing is, the first build worked flawlessly through 3 tanks using MTL draws. It started after a rinse and rebuild. I should add that I use air flow 1.

 

[qorax]

^What juice viscosity, what Ohms and what wattage? @Ca Ike

 

[ChelsB]

Anyone had success with putting their k5 in the freezer to get the airflow to work again? I read that may help me get it unstuck.

 

[Tomasius74]

In my case the airflow ring got stuck because it was damaged by a hit so it was touching the bottom of the tank part (funny thing is that I can't remember any accidents)

I had to repair it and is working fine but not as pretty as it was.

Already bought 3 more K5s but I'm still using the first one because it is not giving any trouble



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[Ca Ike]

^What juice viscosity, what Ohms and what wattage? @Ca Ike

28g 1.3-1.4 ohms @10-14wats. Current juice is 70 vg/30pg. Should work fine. Same juice works fine in my v4 with about the same air flow.

 

[qorax]

28g 1.3-1.4 ohms @10-14wats. Current juice is 70 vg/30pg. Should work fine. Same juice works fine in my v4 with about the same air flow.

I have used the same build many a times with no issues buddy. Off course mine's with a fully open AFC. With position-1 you're pulling-in more e-juice than me. And that I guess, is leaving behind some residual liquid (in the chamber) between the draws. Try having some excess wick-end in one end (more fibers).

 

[Ca Ike]

I have used the same build many a times with no issues buddy. Off course mine's with a fully open AFC. With position-1 you're pulling-in more e-juice than me. And that I guess, is leaving behind some residual liquid (in the chamber) between the draws. Try having some excess wick-end in one end (more fibers).

I'll play with it more. It's not flooding or even slightly gurgling. I'll also have to try the MTl kit. AFC 1 is still closer to a dtl than an mtl. If it is a wick issue I'll scream. I've been using the same build in all my kayfuns for two years without issues until now.


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[BuGlen]

Question for all the K5 peeps: Has any experienced periodic leaking, as in it's working fine, leaks for a few minutes, and then works fine again without leaks for the rest of the day? My best guess is that quick barometric changes during the day (Florida weather) is causing the pressure inside the tank to push out some liquid. It happens at random times (it seems), and it doesn't seem to matter if I just filled the tank or I've been using the same tank full for hours.

Anyway, it's weird, and I was wondering if anyone else was having this issue. Thanks!

 

[Bronze]

Question for all the K5 peeps: Has any experienced periodic leaking, as in it's working fine, leaks for a few minutes, and then works fine again without leaks for the rest of the day? My best guess is that quick barometric changes during the day (Florida weather) is causing the pressure inside the tank to push out some liquid. It happens at random times (it seems), and it doesn't seem to matter if I just filled the tank or I've been using the same tank full for hours.

Anyway, it's weird, and I was wondering if anyone else was having this issue. Thanks!

I have not had that problem. Try rewicking and see if it continues.

 

[Ca Ike]

Question for all the K5 peeps: Has any experienced periodic leaking, as in it's working fine, leaks for a few minutes, and then works fine again without leaks for the rest of the day? My best guess is that quick barometric changes during the day (Florida weather) is causing the pressure inside the tank to push out some liquid. It happens at random times (it seems), and it doesn't seem to matter if I just filled the tank or I've been using the same tank full for hours.

Anyway, it's weird, and I was wondering if anyone else was having this issue. Thanks!

Temp changes can do that. Especially if it gets direct sunlight and the tank or liquid gets hot. I've also had tanks randomly leak going from a controlled environment indoors which is usually high pressure, to outdoors during a low pressure system. I'd suspect it would be more common in FL with all the temp changes just leaving a AC cooled building

 

[BuGlen]

I have not had that problem. Try rewicking and see if it continues.

I thought of that because I've read others having that issue, but it's also happened right after re-wicking, and it's random, not constant. I suppose a thorough cleaning and o-ring change might help, so I'll give that a shot. Thanks!

Temp changes can do that. Especially if it gets direct sunlight and the tank or liquid gets hot. I've also had tanks randomly leak going from a controlled environment indoors which is usually high pressure, to outdoors during a low pressure system. I'd suspect it would be more common in FL with all the temp changes just leaving a AC cooled building

Yep, I've had that happen, but it's usually just a drop or two out of the air flow slots when it's because of the temp changes. I've had my K5's for about 6 months without a thorough maintenance session, so it might just be time to take it apart and give it a good cleaning. Thanks!

 

[Bronze]

I've had my K5's for about 6 months without a thorough maintenance session, so it might just be time to take it apart and give it a good cleaning.

Absolutely! I take mine apart every 15 - 20 mls and wash it up. Not a complete breakdown. Just the deck, chimney, glass, top caps, and drip tip. Don't see a need to change orings.

 

[Ca Ike]

I thought of that because I've read others having that issue, but it's also happened right after re-wicking, and it's random, not constant. I suppose a thorough cleaning and o-ring change might help, so I'll give that a shot. Thanks!



Yep, I've had that happen, but it's usually just a drop or two out of the air flow slots when it's because of the temp changes. I've had my K5's for about 6 months without a thorough maintenance session, so it might just be time to take it apart and give it a good cleaning. Thanks!

Ah then I'd say it's mostly condensation your seeing. Mine weeps a bit after a heavy vape session

 

[BuGlen]

Ah then I'd say it's mostly condensation your seeing. Mine weeps a bit after a heavy vape session

This time it was more than condensation. The weeping that usually occurs on hot days is expected, but this time, quite a bit of liquid was seeping from the bottom (probably about 1/2 ml). It's only happening with one of the two K5's I have, so I'll break it down and give it a good cleaning this weekend. Thanks!

 

[magicmyst]

Need suggestions - One of my K5s won't fire.

Was doing a routine re-wicking, cleaned the coil and it wouldn't fire. Checked for a short- nope. Thought maybe coil was bad. Built a new one- same result: no connection to my ProVari. Loosened the center pin (which I've never had to do before)- no power. Tried it on a couple other ProVaris with same result. Never ever had this happen before, and I'm out of ideas.

 

[Bronze]

Need suggestions - One of my K5s won't fire.

Was doing a routine re-wicking, cleaned the coil and it wouldn't fire. Checked for a short- nope. Thought maybe coil was bad. Built a new one- same result: no connection to my ProVari. Loosened the center pin (which I've never had to do before)- no power. Tried it on a couple other ProVaris with same result. Never ever had this happen before, and I'm out of ideas.

Did you try taking the center pin out and inspecting? Maybe it snapped.

 

[magicmyst]

Did you try taking the center pin out and inspecting? Maybe it snapped.

Yes, and it was fine, but get this: Swapped pin from another K5 and it fired fine. Weird: Put original pin back in, and now it works. I had tried taking the pin out and replacing previously with no luck. Go figure...