I am about to get the long tern use of a "community" boat that has an issue with the engine tilt. It is a 88 Evinrude 150 that worked fine when last used 7 months ago. Now , the current user cannot get the engine to lift. He says the relay just "clicks". At first I thought the motor might be stuck but then he told me that he tried to bump the starter with no luck. What do you all think?? Corrosion? Bad Battery? I don't have it yet to troubleshoot but should this weekend.