While it may turn out to be futile (ugly rumors abound about not being able to get a license plate for a YZ in CA) I went ahead with my YZ with lights project. There are so many options to adding lighting to a YZ its mind boggling. Here is what I learned - 1.Moose/Electrex make a YZ "lighting" stator but it only puts out 45 watts or so and costs about $225, but you don't need to change your flywheel or ignition. 2.E-line has the 180 Watt (wow) external stator but it is big and expensive and ugly and overkill. 3. You can swap in the WR Stator and Flywheel, but also typically means changing to the WR CDI (seems dumb & you lose the YZ power/personality) What I ended up doing, however, was use a new setup from http://www.electrexusa.com/ where they take a new WR stator and rewind/rewire it so it plugs in to the YZ CDI/electronics/wiring harness. This was a very simple/sano solution. You use a WR Stator and flywheel (cost was under $300) and you get 85watts of power while retaining your YZ tuning. I mated that with a "generic" Baja Designs kit I scored from a fellow TumperTalker and I've got a YZ in WR clothing... Anyway thanks to electrex and ThumperTalk!