KFL dry hits?

[Mapultz]

My friend gave me a kayfun that I'm assuming is a clone of some sort. I watched some videos and gave it a go.

Did a 2.5 ohm coil with 32ga kanthal around a 3/32 drill bit. Wicked it with cotton. I wasn't getting much vapor, so I re-wicked with less cotton. That helped. But I was only getting a few good hits and then scorching my lungs with a burned hit.

Did some research, decided to make a new coil exactly the same, but leave more room between the coil and the air hole. Got it wicked up again. On the lighter side this time. Got a few really really good hits... And then burned.

I'm getting frustrated. Am I doing something wrong with the ends of the wick? I leave the tails long and pull them through the cylinder thing, then clip them about flush with the top of it.. Then fold the ends down to either side of the block there the coil sits. I'm not stuffing it down there. Just gently easing it in. I can't see well enough down there to tell if I'm blocking any channels.

Sorry for the novel, just wanted to give as much info as possible!

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[mbliffert]

My guess is that you are using too much cotton and it is blocking up the juice wells some.

3/32 is quite a wide diameter coil and will require a fair amount of cotton threaded through it. I would recommend stepping down to a 5/64 drill bit and trying again. When wicking make absolutely sure that your wick isn't sitting in the juice channel and blocking it up. After you are done wicking and the chimney is on, your wick should be making a "z" or "s" shape within the chamber.

Don't give up on it! The Kayfun is amazing!

 

[Mapultz]

Oooh I didn't know about the z or s shape! I will try that. If it still burns, I'll try a smaller coil. Thank you!

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[nostinkies]

I'm having good success with my KLF using 30g around a 2mm drill bit. 7turns on a diagonal across the air hole.
If you have a clone, double check those juice channels and be sure they are open. Another thing, dont overfill it. good luck

 

[Asmo6]

I really think 32g lights up too fast and too hot. You really need to have things right or its going to burn. Especially with cotton. I think if you dropped down to 28g even though you'd be running less resistance... You would have less of a problem.

Idk why you're running 2.5 ohm coil in a KF anyway? VV should go down to at least 1.5 ohm. That's like an 11/12 wrap on a .063" bit if iirc. W/28g.

Try opening up the chamber base a little as well. Like unscrew it a little.

 

[crxess]

Between builds
Remove old wick/coil
Install Chimney tube
Inspect for decent vertical channel exposure
Drop a little water to each channel opening and see if it flows out the channels

If your channels are open/flowing then you have a bit to much wick or wick is riding in the channel and stopping flow.

 

[300fury]

One more thought , make sure the cotton is threading through the coil with little resistance. A choked wick will give yo good hits a couple times and then dry hits soon after. Hope that helps