Problems?......
It could be. It could be several other things too..........
What happened to it? What lead you to the spark problem? You can try the simple solution without responding. Take off the plug boot, cut your wire clean, about 1/4", then re-attach the plug boot and give it a try.
The 787cc engine has one coil that fires both sparks at the same time. If you got spark on one wire but not the other, you may have a wire problem or the coil is almost shot........:cheers: