So In this I'll cover diagnosis, repair and also dismantling and assembly (most lighters designs' are a common principle... )
Ok so i got a slightly better camera than my phone, it's an ancient canon powershot A60, only 2MP but check out the macro in the pics, it was top of the range once upon a time and it shows.
Step 1: So what you'll need for this
- a small philips head screwdriver (the tiny ones) it almost alway philips head.
-a penknife or a small flathead screwdriver (for adjustments)
-a pair of pliers, needle nose are great her but I can do it with my fake leatherman start to finish (make damn sure the pliers aren't magnetized it's annoying)
-a safety pin or some thin tough wire or a drawing pin (you'll see what I mean if it comes up)
-some sturdy wire about 24awg (anything that fits will do (again you'll understand pretty quick) is handy
-lighter gas, really helps diagnosis, in fact try the first...
-You may need rubber tubing or a piezo spark depending how you broke it (if you dropped I already know whats wrong. the lighter in this is my drinking lighter because it's made of metal and I know how to fix it)