All, I'm in the process of restoring a 75 RD 350. The mechanicals of the engine are new. The battery is new. The plugs are new. I've been riding the bike about once a week for a few months and everything is in working order. I pulled it out of the garage this weekend and started it and was letting it warm up. All of the sudden the bike died. It has fuel. It's battery is at full charge. The plug has no spark. Where should I start? Thanks, Jeff