Hi folks,<br /><br />I have a 1971 Merc 500, 50 hp 4cyl #3241445. It's getting fire to all 4 cyl's but won't start. I can prime the cyl's with starting fluid and it will start and run for just a few seconds. I just bought the motor(and boat). My guess is that it has not been running for a few years. Any suggestions?<br /><br />Kevin