Before last summer’s endless carb/timing issues, I had a motor that always pull started on the second or third pull, always. It is a '92, 25 merc, and (until last summer) has given me problems only 3 times in its life. Now when it tries to fire, it yanks the pull string out of my hand. I assume the timing is off. It will eventually start and run well. However when I try to start it again, even hot, it slams against itself. The shop I have taken it to just can’t get it right and tells me “that’s just the way it’s supposed to be, or it’s bad gas…” They seem like good guys who want to do right, but I really feel like I have been taken to the cleaners this summer.
Does anyone know how to adjust it? It should be easy, but I am not sure which screw/arm to turn. I am thinking it should be the timing linkage that connects to the choke arm. It would be 12 here: http://www.boats.net/parts/search/MercuryMarine/0d149846/367/30/Throttle%20and%20Shift%20Linkage(Tiller%20Handle%20Shift)/parts.html.
If there is anyone out there that can assist or point me in the direction of a quality shop/person I would greatly appreciate it.