I need help figuring out why my '82 RM250 isn't getting any spark. This past few days has been frustrating, I went to friends house on my bike. When I decided to leave I couldn't get my bike to start. At first I thought it was flooded so I had my buddy try pull starting me. I still wasn't able to get the bike to start, my buddy ended up dragging me and my bike home, the next day I went to start it, wouldn't start so I started working on it, I checked to see if It was getting fuel, It was. Also checked to see if It was getting spark, it wasn't getting spark. I replaced the spark plug with a brand new one and It still wasn't getting any spark. I also looked at the wiring for any damage, couldn't see any. also looked at the magneto, its got some rust, it was also a little wet in a couple spots. I dried it off and checked to see if it was getting any spark. Still nothing.