what is quiet? the starter motor?
starter motors should be silent. but they do require a LOT of current and need a fully charged battery. If yours spins at all you are probably OK.. just need a good battery.
If it doesnt spin, bypass all your electrical stuff by connecting the starter directly to a seperate good battery of the correct voltage. If it's a 12volt system, use a charged automobile battery.
If it works then something is wrong with your wiring.. or a switch or something.