No but you'll have an unregulated current so with a freshly charged battery you'll be vaping at around 4.2v and then you'll slowly notice the decline in vapour production. But that's how mechanical mods work.
sparky67 - what you have there is a list of parts to make the simplest, and most satisfying of tin mods, in my opinion. No LEDs or resistors - just as God intended! Don't forget to post up some pictures of your masterpiece when it's done!