Hello all. Stripped drive nut?? Shaft?

[Wanderingbum]

First I'm running à imaycc 80cc motor on a schwinn midway. As per the name I am à residentually impaired person with extremely limited tools and funds. Any tips on how I can get my gear nut back on the shaft without it coming off

 

[Sidewinder Jerry]

With these bikes repairs are inevitable. Bottom line is to work on them you're going to need tools and even some specialized tools also.