exeed rc madwarrior.21 wont start because when i pull the pull start well i bought the eletric starter but any way theres a little shaft that goes inside the motor to spin the one way bearing and that shaft is worn out and wont spin the bearing and i cant find that little shaft any were please help me i cant use my truck because of that if theres any suggestions please help me oh and its the .21 engine

try pulling the back plate off the motor and re-aligning it with the crankshaft. im not really sure if i completely understand what your talking about try making a video so i can see what you mean.

You could purchase a bump start and not need the wond or the string.