Re: how to synchronize a merc 1350
First, you need to study this writeup, that info in the Seloc is Bum Dope!
http://forums.iboats.com/showthread.php?t=128495
You'll notice that you don't need to hang off the back of the boat to check total spark advance.
You just take all spark plugs out except #1, advance the throttle until the distributor hits the timing stop, and with a timing lite attached to #1 spark plug wire, crank the engine over and check timing. Adjust spark advance accordingly.
Note that the gearbox must be in in Fwd to advance the throttle far enough to put the distributor against the timing stop. Of course, the starter won't work unless the shift is in Neutral. So, you'll need to turn the ign to "ON" then jump the solenoid to get the starter to turn.
This is easy, just run a wire from the battery-side terminal of the solenoid to the small terminal which has a yellow wire connected to it.
Anyway, the writeup should answer pretty much any question you may have about doing the Link 'n Synch on your Merc, if not give us a holler...........ed
