OK so I have a spec 1 axail. 32 I snapped the shaft off the peice that goes to the rod on the inside of the block and I broke my pull start I wanna know what roto start I can put on the motor I put my roto start off my Mach 427 it worked and I think that's why the shaft snapped I've been doing some reading and they say you can use a HPI roto start for the k series on this motor I wanna know if that's true and will it hurt the motor thanks guys