Intermitting Spark

[LT Bill]

I have a 2004 eton viper 90. It will have spark for 10 rps's then the spark is gone. Let the bike sit for 5 seconds then it sparks again for 10 rpm's. I have changed the stator, coil, cdi box, ignition switch. All parts came off of a running bike. Need help, any suggestions? Thanks.

[LT Bill]

found problem frame broken top of rear shock and pinched the ground wire at tail lights sounds odd but fixed frame repaired wiring runs fine now