I have 01 65sx with kick start only but someone installed a 03 crank.. I’m trying to avoid breaking the engine down and waisting my money on the parts. Could I just buy a newer stator and make it run? Or with the fire change ? Please help!

Rockymountainatvmc.com Part# 1931680001 My daughter's 2018 50SX is getting really hard to start and has been running bad lately. In her last race she tried going up a hill and it bogged down and died on her. I've cleaned the carb and jets, no improvement. I've had multiple people tell me...