Re: 60hp 1987 evinrude stalls at low rpm & when shifting in gear
Same problem on my '83 Evinrude 50. I did all the things I could find to be recommended in this list (Seafoam treatment, link and sync, clean carbs, check and clean out orifices, fuel lines, etc) and it smoothed out the engine running but did not improve the original problem. Just the other day I found that one vacuum hose running to the mid-speed orifice of one carb had a crack in it just past where it fit on the carb fitting. I cut that off and remounted the tube. Voila, new engine. Runs perfectly and I can floor the throttle from its lowest in gear speed to WOT without it dying (used to have to keep punching the choke and inching up the throttle until it caught at the higher rpm). So, add to the list to check any vacuum lines to all the carbs. Mine run from the back of the air intake housing to some splitters and then to the various carb fittings.
Good luck!