Re: 60hp Mercury intermentant problem - Mechanic so far let me down
Did you solve this problem?
"I have a 1991 - 94 60 hp mercury with 3 carbs. This problem is intermitant. Usual top speed is 30 mph. Problem is sometimes it loses power and won't go faster than 5mph. Plugs are new. Squeeze bulb has pressure. Mate has cleaned Carbs - and later so apparently did the Mechanic. Tank is vented and clean. Problem may last ten minutes or half a day when it suddenly begins to clear it's throat and slowly pick up speed and runs fine until next episode. This problem has gone on for 12 months. I am at a teather..... New fuel line, New bulb,new kill switch , new ingnition barrel, yes petrol tanks and filter was cleaned/replaced more than once Does this sound like a carb or electrical problem - I am sure a fuel problem? Or what else??? Please I need assistance I have spent over $1000 at the Mechs and still the problem raises its ugly head. "
I have the same motor. Just had it out today. Did not use stabil or drain carbs last fall.
Drained old gas, put new. motor started right up but would not accelerate. Under power it would stall around 2000 rpm. after about 20 minutes of running, it would work slowly up to full speed if I let it creep up very slowly. Ran fine for about 10 minutes at full throttle out in the lake. Came back to the dock area, lots of wind and didn't want stranded in the lake, tried again to accelerate, same issue with stalling. this time would not accelerate at all. Motor would just die if the throttle was pushed to full.
I am guessing needs carb cleanout, probably main jets obstructed. so opening throttle leans the mixture and it stalls.
I have had these carbs apart before. I think you can get to the jets from the side without disassembly. I am going to take that brass plug in the side that covers the main jet out and see what drains out of there. I'll catch it in a small glass bowl. That would be the quick fix. if that doesn't work, I've got three rebuild kits in my tool box.
Archie
