40hp evinrude

[yahoo1]

I have a late 80's evinrud

I have a late 80's evinrude 40hp vro[vro disconected for many years] when driving at wot engine dies and when i pump the ball while driving it runs great any suggestions on problems

 

[visitrude4]

fuel pump is bad!!!!!!

fuel pump is bad!!!!!!

 

[tumblweed]

"A :fuel pump diaphram is bad,

"A :fuel pump diaphram is bad, or B:...less likely...the pulse line(s) that come from the crankcase to the fuel pump have cracked or rotted or come off. the pulsation of the crankcase is what moves that diaphram back and forth to create fuel flow."