Finally found time to work on the simplex. I have been wanting to add head and tail lights without adding a battery. after hours of research on the internet, I finally found a youtube video of a guy changing the flywheel and adding a lighting coil. The guy said to find a flywheel off of a baja minibike like are sold at farm stores. after finding a guy on ebay that had bought a truckload of baja mini bikes that were store returns, I bought the whole kit for $60. When I recieved the flywheel, it didn't fit, the crank shaft taper was to small. After lookinga at it I realized that everything else was identical, so I removed the magnets from the new flywheel and drilled 2 holes in the original, and I now have power. several places on the internet say that there are 2 different sizes of crankshafts on the predator motor, but said if you have a Hemi style motor, it is the right size for the baja. From everything I have read, I have the hemi style motor....but the flywheel still didn't fit. I ordered 2 1156 led bulbs off of ebay for $8.... and 2 1157 led bulbs off of the web for $3. I wanted to buy the cheapest I could find in case it didn't work. I ground the tits off of the 1157 bulb, and then used the 3 keyhole flange off of one of Waynes headlight bulbs that I had broken...soldered the flange onto the new led bulb so I didn't have to grind out the headlight reflector....the 1156 bulbs fit right in the taillight sockets. the 1157 bulb isn't very bright, but it works for now til I cand find another brighter version. the tail light seems to be bright enough.