A defective starter bendix (drive) is at the top of my list.  Other suggestions are always welcome.

Lorena, Texas (South of Waco)

Why does starter just spin before it starts. The starter motor is good, the bendix is new.  When I start from cold, I depress the accelerator once,  it starts right away.
The next time  I try to start it spins out, try again spins out and then it spins and then starts.Any suggestions would be appreciateed