Kayfun Prime (MTL they said)

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mrcrunch08

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Coil looks good but your wick is suffering on one side...see how much darker it is on one side? That's usually caused by the trail side of the wick while pulling it thru coil. This trail side of the wick is usually much more dense then the opposite end and is probably not flowing juice as good as the other side... it also is more dense because it's natural to grab the thinnest side of the cotton when threading, so it's usually thicker on this trail side in 2 ways...after threading wick thru coil, I find myself trimming this thicker side of the wick to the same density as the opposite end, in order to get both tails equal and it does make a difference in flavor....although you do want a good amount down in channels, I definitely wouldn't try to stuff as much as possible, as this could also be causing that dark tail (because you may have to much stuffed in that channel ) in my km3 and k5, (besides density of tails) I find tail lenght very important as well and for me, with a coil height at 1.6mm off the deck, cutting the dry tails right at the black oring the perfect lenght.

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Thank you for the tips. Unfortunately that image is of build #4 or #5 where one of the changes I tried in order to make temp control reliable was to over do it with cotton so the juice control can remain fully open at all times. My hope was more stable tc while keeping the ability to adjust airflow. I purposely used all the cotton I could fit through that coil so trimming the thickness was not an option. I know it may not seem it with the darkness but there is the same amount of cotton cut to the threads on each side. The side that was twisted was never fluffed impeding its wicking ability probably resulting in that creep you mentioned. I certainly agree with your comment about machining. The machining is well done and the deck is beautiful. I don't remember saying "clone quality" but definitely recall saying it felt cheap like a clone. I wasn't even going to comment on how I feel about the quality but I just happened to drop the top less than a foot on my desk and just from that small fall I already have a nice dent. On top of that the tiny dent in that pic completely stops the glass from fitting. Now I have to bend that out if I even want to use it at all. Machining is one thing but thin weak materials is another.
 

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mrcrunch08

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prime coil.png

Thanks Hawise. I appreciate the ideas. I didn't feel like waiting on thinner wire and just went for a larger diameter coil and got the resistance up a bit and temp control has been working pretty well regardless of small juice flow adjustments or changing the airhole. It still floats but at least it has worked longer than it has previously. It's nice to finally not have to fiddle with something and just enjoy the flavor.
 

Kaoself

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The Prime build deck is smaller than the K5. As far as I can tell, the juice flow is the same. The part of the chamber with the holes is more slanted in the Prime because of the smaller chamber, but given the positioning of the holes I don't think it would make much of a difference.

Thanks Hawise! Do you think the build deck will fit 3mm coils being smaller than the KF5?
 

vapdivrr

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Thanks Hawise. I appreciate the ideas. I didn't feel like waiting on thinner wire and just went for a larger diameter coil and got the resistance up a bit and temp control has been working pretty well regardless of small juice flow adjustments or changing the airhole. It still floats but at least it has worked longer than it has previously. It's nice to finally not have to fiddle with something and just enjoy the flavor.
Looks really good there my friend....I know you said you are having issues with tc and also thought I heard you say you have the JC wide open? I'm not into tc that much but was wondering if that might be contributing? Maybe with it so open there is a looseness to it that could be why? I consider myself maybe in the higher wattage end on the km3 and prime with power ranging from 22 to 28 watts and found in the km3 that only 1-1/4 to 1-1/2 turns more then sufficient with juices in the 70vg range. I use to do 2 turns, but felt the harshness that seems to happen when the coil is to wet. Obviously my experiences may not help with yours, but I'm thinking a slightly higher resistance and close off juice control a bit to see if that might help..good lyck

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vapdivrr

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i like my draw quit tight,(cigarette like)
the only RTA i use for now is the kfl+/Russian91 with the air flow screw half way in,
can i get the same experience with the Prime?
I'm going to say I'm 90 percent sure you will...it's been a couple years since vaping my kfl's, but at one time I had 6 kfl's going at one time and loved them immensely, but the last 6 months of using them, I drilled all out to 5/64ths and widened channels, so in a way I forgot the original draw and of the few I still have, none are stock.....my wife has a kfl clone right now and I can get the same af on the prime for sure, but not sure if the clone kfl is like the original because it's been so long. ...the prime on its tightest setting is pretty tight and I feel it's equal to the kfl's. ...I know there are AF specs on the original kfl, maybe they were 1.5mm? Honestly I forgot, but one can find this spec and compare it to the prime specs

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Fredman1

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Just received my Prime an hour ago. Put in a 30G 2.5 316L at 1.0ohm. Really loving it. Fantastic flavour.
I'm a tight MTLer and this is perfect for me. Still playing around with the first 3 settings. The first is pretty tight...
I just compared it to the Lite...my best guess is the Prime on setting 2 (or maybe 3), is about what the Lite gives me....so there is some room to set up or down.
Its a bit difficult to compare as the Prime is very much smoother for me...
 
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mrcrunch08

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Looks really good there my friend....I know you said you are having issues with tc and also thought I heard you say you have the JC wide open? I'm not into tc that much but was wondering if that might be contributing? Maybe with it so open there is a looseness to it that could be why? I consider myself maybe in the higher wattage end on the km3 and prime with power ranging from 22 to 28 watts and found in the km3 that only 1-1/4 to 1-1/2 turns more then sufficient with juices in the 70vg range. I use to do 2 turns, but felt the harshness that seems to happen when the coil is to wet. Obviously my experiences may not help with yours, but I'm thinking a slightly higher resistance and close off juice control a bit to see if that might help..good lyck

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Thank you for the responses. Your experience definitely helps. Even if I didn't have issues I appreciate people sharing their experiences. The only reason I have been trying to leave it wide open is to allow me to adjust the air flow without adjusting the juice control. I found that every time I touch the juice control temp control shifts throwing everything off and I like to adjust airflow throughout the day. I actually had a similar thought as you in the beginning. I did try closing it as much as possible thinking the more threads that made contact the better. I still found myself having issues. The thing that helped the most was increasing my resistance. I appear to have been running a thicker gauge and lower res then the others who have been having less problems. Since doing the bigger builds while I wait for wire the experience has been much better. I'm back to using the juice control between one and two full turns open. I'm still getting some floating requiring me to raise or lower the temp but it is finally manageable. Don't laugh but I am an extremely low wattage vaper by todays standard. My current build is around 0.61ohm and I'm at 12watts and 425-450f. Generally I'm around 0.4-0.5ohm and between 12-15watts at 425f. I may also swap out the 510 pin for a copper one since it has the same threads as a 3.1 center pin and I think I have some old copper one stashed somewhere. I'm sure finally getting around 1ohm for the coil will help the most and doubt the 510 swap will make a difference. I rreally like tc so want to try everything and anything before giving up and resorting to wattage.
 

vapdivrr

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Thank you for the responses. Your experience definitely helps. Even if I didn't have issues I appreciate people sharing their experiences. The only reason I have been trying to leave it wide open is to allow me to adjust the air flow without adjusting the juice control. I found that every time I touch the juice control temp control shifts throwing everything off and I like to adjust airflow throughout the day. I actually had a similar thought as you in the beginning. I did try closing it as much as possible thinking the more threads that made contact the better. I still found myself having issues. The thing that helped the most was increasing my resistance. I appear to have been running a thicker gauge and lower res then the others who have been having less problems. Since doing the bigger builds while I wait for wire the experience has been much better. I'm back to using the juice control between one and two full turns open. I'm still getting some floating requiring me to raise or lower the temp but it is finally manageable. Don't laugh but I am an extremely low wattage vaper by todays standard. My current build is around 0.61ohm and I'm at 12watts and 425-450f. Generally I'm around 0.4-0.5ohm and between 12-15watts at 425f. I may also swap out the 510 pin for a copper one since it has the same threads as a 3.1 center pin and I think I have some old copper one stashed somewhere. I'm sure finally getting around 1ohm for the coil will help the most and doubt the 510 swap will make a difference. I rreally like tc so want to try everything and anything before giving up and resorting to wattage.
The juice control open to much, pertaining to TC, is just a guess on my part as I never got into it, but for clouds and flavor I surely can tell the difference. When I first got the km3, I had it like 2.5 turns thinking the more juice the better, but I soon found that not to be the case...I notice less clouds and darker clouds when over saturated and diminished flavor as well as a hotter and harsher vape...but everyone's builds and vaping styles are different. I'm glad it's getting a little better and I do think you will enjoy a slightly higher resistance build for sure....

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mrcrunch08

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The juice control open to much, pertaining to TC, is just a guess on my part as I never got into it, but for clouds and flavor I surely can tell the difference. When I first got the km3, I had it like 2.5 turns thinking the more juice the better, but I soon found that not to be the case...I notice less clouds and darker clouds when over saturated and diminished flavor as well as a hotter and harsher vape...but everyone's builds and vaping styles are different. I'm glad it's getting a little better and I do think you will enjoy a slightly higher resistance build for sure....

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That has been one side effect I had to deal with when I was running it fully open. It just didn't have that kayfun vape I have grown used to. It never flooded but the vape was too saturated. At least I can say I haven't had a single leak with this tank. I have noticed if the wick touches the inner wall of the juice Wells near the airhole I will get some minor gurgling but that is about it. I need to buy another yihi mod to see if temp control works better on that. Everything I have is evolv and they seem to be a bit more picky than yihi from what I remember.
 
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vapdivrr

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That has been one side effect I had to deal with when I was running it fully open. It just didn't have that kayfun vape I have grown used to. It never flooded but the vape was too saturated. At least I can say I haven't had a single leak with this tank. I have noticed if the wick touches the inner wall of the juice Wells near the airhole I will get some minor gurgling but that is about it. I need to buy another yihi mod to see if temp control works better on that. Everything I have is evolv and they seem to be a bit more picky than yihi from what I remember.
Yep same here, no leaks at all...I have got a slight slight gurgle, but only on the first vape after a fill . I could be a short wick that's fluffed and like you said, dripping down the inside, but it could just be, at least in my case, just the initial equalization when opening up the JC after a fill....I tried TC a few times and it just didn't seem any better, plus I guess I'm a little old school and stubborn about changing , so I didn't pursue it any further. Also, and it was probably in my head, but I didn't care to much for SS wire. It tasted more mellow, like there was no S&P on my steak..I guess after vaping kanthal for 7 years, my taste buds just are to use to it...Do you find SS smoother, like less of a TH then kanthal?

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DaveP

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Leak free performance and flavor are in my list for a KFLPV2 replacement. I'm stocked up with Kayfuns for the Deeming, but there's always room for one or two more. KFV2 has always been an atomizer I could slip into a pants pocket and not worry about leaks.

It's good to hear that the Prime is also a leak free MTL tank.
 
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mrcrunch08

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Yep same here, no leaks at all...I have got a slight slight gurgle, but only on the first vape after a fill . I could be a short wick that's fluffed and like you said, dripping down the inside, but it could just be, at least in my case, just the initial equalization when opening up the JC after a fill....I tried TC a few times and it just didn't seem any better, plus I guess I'm a little old school and stubborn about changing , so I didn't pursue it any further. Also, and it was probably in my head, but I didn't care to much for SS wire. It tasted more mellow, like there was no S&P on my steak..I guess after vaping kanthal for 7 years, my taste buds just are to use to it...Do you find SS smoother, like less of a TH then kanthal?

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As far as vape quality I definitely don't find tc better than kanthal. I just find tc great for work or being lazy. I work in a sheet metal shop and break a lot of mods and tanks so tend to use tanks that are all ss. With not knowing what my juice level is or bringing juice with me to work tc has been a life saver. I just really like not having to think about my vape at all.
I have a similar experience with ss but my feelings are much different. Trying ss was like the clouds parted and I finally seen the sun for the first time. I definitely get a more mellow vape but no less TH or flavor. The Th just seems to be shorter in duration but just as sharp. I just don't get this twang I get with kanthal. I never even noticed it until trying ss and going back to kanthal after a couple weeks. I'm doing a poor job trying to explain it but it wasn't a metal taste really. Just a sharpness that isn't there with ss. I guess similar to a cheaper scotch compared to a well aged scotch. Idk...
 
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