WOW !! Surprised the 180 starter didn't work. I've had success starting my 1.20 AX several times with the same starter, but it ate up the $20 dollar gel cell Torqmaster battery real fast. My local hobby shop owner Bill from the famous La Grange Hobby Center in La Grange, IL 60525 708-354-1220, turned me onto the "Minimax" geared starter and I immediately retired that 180 joke of a starter. The minimax blows the doors off the other starter and for $35 smackeroo's, you can't find better. That 180, that costs $15 or $20 dollars more, should turn that 75 no problem. You may have a bad battery but chances are that the 180 starter should be called a 65 starter. Get a geared starter and you should be good !!