wont run under load

[sonny2499]

i have 1984 eveinrude 60hp 2cly was running like a bat out of hello then slow down to let my son catch up then push forward then couldnt out run a crab came home change plugs check carbs she run good in can not in the water what could be please help

 

[Daviet]

Re: wont run under load

Does it sound like it is missing? Have you checked compression and spark? Does pumping the primer bulb help? What do the spark plugs look like?