electrical system suddenly broke down :(

[Bigredgasbike]

my bike wont spark anymore! and whats more, it was running when it stopped!
i replaced the following parts without success, ignition coil, spark plug, magneto (coil and magnet), all wires and connectors. What could be the problem? could it be a grounding problem?

 

[Al.Fisherman]

my bike wont spark anymore! and whats more, it was running when it stopped!
i replaced the following parts without success, ignition coil, spark plug, magneto (coil and magnet), all wires and connectors. What could be the problem? could it be a grounding problem?

Could be any one of a number of things.
https://docs.google.com/document/d/1aBeJuoS--VQWwXysc07rpscTUbPzgc93xjiQBgsyFjc/edit?pli=1

 

[Bikeguy Joe]

Did you try to by-pass the kill switch?

 

[robbomberbomyea]

kill switch took a dump. would be my thoughts as well.