Starter Hangs Up After Starting Every Time

I recently upgraded to the 120 amp alternator and every since my starter always hangs up for a brief moment after my car starts. I can see a small load on the amp guage even if I quickly "tick" the motor and it doesn't start. I have also disconnected the starter wire from the fender mounted solenoid and when I energize the key, I can see a small load on the amp guage. Is this a bad solenoid or starter? Anybody seen this before?

Problem fixed

Thanks for the help, had the large wire on the wrong side.

Thanks again