my kayfun sucks

[bluesbishop]

not sure if anyone is following this thread but after three more coil attempts this is what ive got....i still dont feel like this is giving me enough vapor or the vapor that a kayfun should be putting out, oh well at least it vapes..i guess lol im calling it quits for the night ill try this again later as its rather irritating. if by chance anyone is following this ill keep you guys updated tomorrow if youre interestedView attachment 336257

I've been building alot of different coils for my authentic KFL+ V2 lately just to experiment...flavor for me seems best around .61-.81 range..I also seem to get various degrees of more vapor depending on wire...with 24 so far the best...I also get more "clouds" if I go .61 or lower...but below .50 my juice starts to taste burnt. I also use 100% VG juice, which makes more vapor.

as a rule of them, I cut my cotton about even with end of deck...I then put on bottom chimney, with cotton now above chimney, I then cut off slightly above chimney. I take a small needle nose, or needle tip and gentle push each piece of cotton gently down between each screw head, so that cotton is filling the area above liquid channels. I then cover wicks and top of coil, test burn, and then assembly the rest of the tank and fill.

correct amount of cotton is critical...not too much, or too less! Rip's video is a good measure.Also dont pack the cotton too tight.

IMO, you need to lower your ohms below 1, ( I would .8-.9 range now...maybe lower when your get more comfortable )go slightly raise your coil...make sure your coil is nice and tight and add more coton from your previous photos...also check your juice...too high PG and your vapor production simply sucks.Also make sure you have good batteries!! Sony's or Efest purples...

And Cucco taught me everything I know about Kayfuns!! She vapes all the time at .61 and her flavor and clouds are amazing..I've been experimenting higher simply to conserve battery life...but a KFL+ at .61 with 100% VG....just about perfect!

 

[Dusty_D]

I love my Kayfuns!

.24 gauge Kanthal, 8 wraps, 3/32 diameter micro-coil registering at .61 ohms; 6mg 100% VG coffee e-liquid.

Plenty of taste.... Plenty of clouds.... Life is good!

Cucco, would either you or Bluebishop post a picture of your wick/coil combo? I'm curious to see what y'all have going with 100% VG.


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[bluesbishop]

Cucco, would either you or Bluebishop post a picture of your wick/coil combo? I'm curious to see what y'all have going with 100% VG.


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I'll post a pic when I rewick tomorrow

 

[crxess]

Building a functional Kayfun starts here:
Fully Disassemble (Everything) Clean and inspect all parts.
* Often you will find fine pieces of Metal or plastics in the air path* Using a straightened paper clip, probe the air hole at the base to be sure it is clear. Check through the center hole for anything you may push out. Rinse if needed. Probe the Center screw from the top and inspect the side holes for any obstructions.

When assembling - As you tighten the Center screw, use the paper clip to align the pin side holes with the side air channel. This will give you optimum air flow.

Take a look through my blog(link to left) it may offer you some ideas.

*Note - I never saw your Battery spec. Are you using a good IMR Battery?
I only ask because _____Fire(fill in the blank) Will work on a regulated mod but are never recommended for a Mechanical. They are not only risky but most will push enough power to properly heat the coil.

Also note, your Mod is just as important. All connections need to be clean and properly carrying the needed current. a poorly conduction Mod will kill a great build.

 

[iowajosh]

View attachment 336229View attachment 336228

heres my new coil, double twited 4 wraps 1.1 ohms. it glows so bright it hurts to look at!

I think the coils look fine and there is something else at work. The juice channels on that thing look huge. If you have a wick that is way too wet, it will be hard to get vapor out, even though you can hear it hissing or popping. Could have an airflow problem too, pull the center post out and make sure there aren't any shavings or blockage in there. AFter that, experiment putting little tufts of cotton in the wells on the sides to keep those huge juice channels from feeding too much.

Build a coil, wick it and test vape with just the chimney on. It saves some time, rather than assembling the whole tank.

If one of the o-rings isn't sealing it can feed too much and be hard to make work. Put some dish soap on the thing, cover the airhole with a finger and blow and look for bubbles.

 

[vapdivrr]

You've got some very good advice here but somehow vapdivrr missed something that I've found very important, diameter:length of the coil. You want a largish coil that will allow for a loose wick. I'm building my coils in a 2.4mm form (out of Ga 30 or 28). This gives me much more heating area. 32 is good for rebuilding atty heads with micro coils but Kfs work better with normal coils. Not very low on Ω either; I've found best 1.3~1.6. Of course these are sluggish coils, not lightning fast like micros but the vapor will be huge and the taste as well. Do heed the centering of the coil (transversally square) over the air hole. A 2.4 dia. coil will let you place a really loose thick wick that just touches the deck. You will be doing 8 sec fires but it's worthwhile.

no doubt about this length of coil. although reducing your resistance might get you more vapor because of higher wattages, its counter intuitive to reduce the length of coil. having just 4 or 5 wraps now is not that good. either buy some thicker gauge wire or tri-twist the 32g you have. in a micro coil I feel the minimum wraps should be about 7 . although you could tri twist the 32g to increase the wraps, I would recommend purchasing some 28g or even 26g kanthal. do you own a multi-meter? just wondering how efficient your mod is, or what the voltage loss could be. although you issues can be with your kayfun build, it also can have to do with the power or efficiency of your mod. it is entirely possible that even with a freshly charged battery that after voltage loss, the voltage actually firing the atty might be as low as 3.5 or lower volts so even with a 1-ohm coil your lucky to be getting 10 watts, at 10 watts your just not going to have a ton of vapor. there are so many factors involved really and sometimes it takes a while to align all variables to get that awesome vape, welcome to the world of rebuildables.

 

[vapdivrr]

I think the coils look fine and there is something else at work. The juice channels on that thing look huge. If you have a wick that is way too wet, it will be hard to get vapor out, even though you can hear it hissing or popping. Could have an airflow problem too, pull the center post out and make sure there aren't any shavings or blockage in there. AFter that, experiment putting little tufts of cotton in the wells on the sides to keep those huge juice channels from feeding too much.

Build a coil, wick it and test vape with just the chimney on. It saves some time, rather than assembling the whole tank.

If one of the o-rings isn't sealing it can feed too much and be hard to make work. Put some dish soap on the thing, cover the airhole with a finger and blow and look for bubbles.

they are some deep grooves on that clone for sure but I doubt there too big. I have modded one of my kayfuns to at least that large and it works awesome. the only con to it is it could flood a little easier if you forget your finger is over the airhole and you take a big vape.

 

[ForeverDiving]

should i buy 26 or 28guage kanthal wire? all ive got now is 32, which is why i twist it to lower the resistance, two wraps of 32 guage is already like 7 ohms

I'm getting 1.4 ohm from 28ga with 7.5 (8 over) wraps on a 2.4mm form. Sit the coil as low as you can over the air hole to get 3~4mm leads on each side.

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[ForeverDiving]

For these Kayfun's I usually figure a leg length of .25"

¼ inch for each leg? (or is that total) How high does that place the coil over the air hole? I'm building about half.

 

[VaPreis]

¼ inch for each leg? (or is that total) How high does that place the coil over the air hole? I'm building about half.

I raise my coils up fairly high, but I honestly haven't measured the height or the leg length. I just know that if I enter .25" in the spreadsheet, it's a fairly accurate prediction of how my builds end up. The actual leg length I'm certain is less, but 1/4" seems to be more accurate for me then the default 1/8"

 

[ForeverDiving]

Thanks a bunch! I'll try that. My builds always come .2~.3 ohms higher than calculated.

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[blueGrassTubb]

Thanks a bunch! I'll try that. My builds always come .2~.3 ohms higher than calculated.

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It's because your coils are loose when you wrap it. Mine are now consistently only about 1 coil off. If a calculator calls for 8 wraps, I wrap 7.

 

[ForeverDiving]

Excelent insight. I'll do that. Vapemail just arrived with my first Fogger which went just now to a 3 hour sugar cane 98° bath. I'll test your advice this evening.

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[bluesbishop]

Cucco, would either you or Bluebishop post a picture of your wick/coil combo? I'm curious to see what y'all have going with 100% VG.


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OK...here is my typical VG coil

Sorry for image quality took with phone...easier to do when building coils than to drag out camera gear! After I tightened everything up I was at .745 ohms

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[Cucco]

Cucco, would either you or Bluebishop post a picture of your wick/coil combo? I'm curious to see what y'all have going with 100% VG.


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Sorry, I missed your post. Bluesbishop posted one. My coils sit just a tad lower than his. But, basically the same.

 

[bluesbishop]

Sorry, I missed your post. Bluesbishop posted one. My coils sit just a tad lower than his. But, basically the same.

Yeah...I've been experimenting with height...I think I get more air and more vapor production when the coil is slightly higher...maybe totally subjective! lol...I had 1 extra wrap on this coil...but if I lowered and made tighter to base, would also decrease resistance a bit

 

[Cucco]

It's funny. I have been vaping KFLs for a long time. But, I had never watched a build video until now. I do my builds, pretty much like the dude in the video in post #9. Different gauge wire, different number of wraps, and I don't use a torch. And, my coils are placed at an angle, not totally horizontal. BTW: It is easier to build on your ohm meter, than on the mod.

 

[The M4n C4nn0n]

8 wraps of 26g nichrome on a 5/32 drill bit, if I remember right, .6ohms. Best flavor I've gotten and I can fog up the office at work in just a toot or two lol.

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[The M4n C4nn0n]

8 wraps of 26g nichrome on a 5/32 drill bit, if I remember right, .6ohms. Best flavor I've gotten and I can fog up the office at work in just a toot or two lol.

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Make that 5/64

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[Dusty_D]

Bluebishop, here's a very similar coil that I built with 26g. Wrapped around a 3/32 drillbit, it ohm'd out at 1.1 and I ran it at 12 and 14watts on the ZNA. I didn't have much success with 50/50 PG/VG juices. No idea why..

The only difference I see is that your coil is at an angle whereas mine is at 90* to the build deck.