Do make sure the air adjust screws are backed out, at least flush with the bottom of the base. If you still can't see through the two holes, you may want to adjust.
You need to make the adjustment with the KF opened up, and while it can be done with a coil in, it may get damaged.
Important to use the right size screwdriver! You're going to turn the 510 screw at the bottom of the base. It's probably very tight, and the wrong size driver may damage it. With the base in your left hand, turn that screw counter-clockwise just a little, while looking through the air intake. If you go 1/4 turn that way and still don't see the light
p), then it needs to go the other way. Loosening the screw will also loosen the positive block inside - why you have to have it open.
And you don't want the 510 pin sticking way out...
If you need to, make a tiny insulating washer from, say, a carto condom.
I use a pair of pliers to hold the two block in place (well, the negative block isn't going to move!) when retightening. Makes it easier to align the positive block.
And check resistance with no coil after done, to make sure the pos block hasn't rotated into contact with the neg. (Although if you did manage all that with a coil on, you should see the same resistance as before the process.)
Hard to explain, actually pretty easy to do
