Howdy y'all - I've tried searching (maybe I'm simply retarded b/c I'm sure there's something on this somewhere), but nothing's come up. I've got two questions, the first of which is more pertinent. 1) I've got a YZ400f that had an exploded motor. So, I was able to obtain myself a WR bottom end, so essentially I've got a WR motor in my YZ. Unfortunately, I'm not getting spark. My question is simple: do I need to switch to a wr cdi, given that I'm running the wr neutral switch and cdi sensor? The motor's currently plugged into my yz cdi and I'm not getting any spark. I'd like for the answer to be that my cdi is simply the wrong one before troubleshooting the rest of the system... I've called numerous dealers here in AZ and nobody's given me a straight answer, although it seems like the respective cdi's could very well be different. 2) My second question is simple: I'm putting a headlight on the yz, but I was hoping for some advice as to which ones out there (a) put out the most power, ( have a "high-" and "low beam" (spot and flood, etc), and © are light on the wallet. I will be driving this on the street but we don't need DOT approved anything here in AZ. Just something bright. Thanks for any help you can give me.