Is this common

Ok so i was having starter issues with my 211. Read tm about starter and it states lever when pulled back engages starter gear onto flywheel and induces starter to turn . So for a week of having truck i would pull starter back fast and motor would engage only. About 100 pulls would get to crank. Thinking my starter bendix was trash or rusty. But behold today went to start and pulled handle slowly back dont know why and if i pull slowly and not all the way back she cranks no problem. I suppose there is an adjustment here to be made will be doing a bit of reading tonite. (ds) (stands for dumb shi#)