Blaster Help please ... need opinions

[Sidsol]

1. Push Button
2. It sounds normal for a second or so
3. Sounds like it locks up ,binds, get stuck
4. The free spins

 

[Matt_E]

You might check the bushings for the bendix shaft. They need to be tight and not let the bendix move around too much.
If either of the bushings is too lose, the bendix could disengage either the starter or the flywheel.