Purchased manual to sync & Link my 2000 Merc 75 Outboard and have check all past post but did not find an answer .......when adjusting timing, and looking at timing mark, here is my dumb question #1 The numbers (degrees) to the left and right of TDC which is BTDC just wanted to make sure <br /><br />#2 To adjust the Oil Pump the manual states: "on some model powerheads the oil pump may have two markings on the body of the pump. The second mark should be disregarded for the alignment and adjustment procedures"..... which one is the second mark. The left or right mark as you look at the pump?<br /> <br />thanks
(Gotta love those aftermarket manuals.)<br /><br />See which way the arm swings as you open the throttle and align it with the mark it would hit second. That'd be the richer of the two and you'd be safe. At least that's what I'd do. I'm afraid I don't know which would be which. I'd assume that the first mark would be the first mark as you advance the lever, but assumptions like that can toast a motor. Err on the safe side. Hopefully somebody actually knows the answer and will chine in. I'm probably wrong, but it's Safe advice. Sparkplugs are cheap, overhauls aren't.