The tilt on my 89 yamaha pro 50 stopped working. I can get it to start by tapping the tilt motor. Do I have to pull the engine to get the tilt motor off? Is there a third bolt holding it on? I can get at two but can't tell if there is a third. Will the oil leak out when I pull the motor? How do I restore the oil level? Are there any online exploded views of outboard motors? Thanks<br />Duke