Anybody know where I can get the replacement springs for the forward gear? Transmission pops out of gear when under load and I have read that replacing the wave spring between the dog rings with a stronger one is the fix, but I cannot find the replacement.

Alternatively, does anyone know which manufacturer Kazuma ripped off the transmission design from? If it is like most of their other designs the parts interchange with other manufacturers.

You can go to this link and see what it looks like. Hopefully someone will recognize it.

https://www.aliexpress.com/item/32846921342.html