Loss of power on acceleration

webdzyner

Recruit
Joined
Jul 18, 2003
Messages
2
We have a '70 mercury 1000 100 hp OB.<br />It idles fine, however, when in the water and when put into forward the engine either runs very slow or dies, however, works fine in reverse.<br /><br />We have had the lower unit rebuilt, replaced the cap, plugs and wires, new fuel filter and fuel lines.<br /><br />Fuel leaks from the top carburetor.<br /><br />Any suggestions on where to start?
 

RICKRICK1

Ensign
Joined
Jun 24, 2002
Messages
926
Re: Loss of power on acceleration

Check compression then rebuild all carbs replace needle and seats, check fuel system hoses and fittings. It sound like the top carb needle and seat is stuck open if you have fuel leaking from it.
 
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