i was recently taking my boat out and we snapped a belt for the alternator. I fixed the belts and got it started again. went to take it out the next weekend, the boat wont start. i changed the battery. still wont start. i changed the starter and still wont start. all you hear is a TINK when you turn the key and a TINK when you turn it back. starter has power. i dont know what else to check.