Fuel Pump Pressure ?'s

[kitsonkraft]

1980 mariner outboard 80 hp.<br /><br />Problem: spitting gas from carbs and exhaust. New carbs/floats ok/fuel pump diaphram ok.<br /><br />Question: Thinking excess fuel pressure is the culprit. How do i adjust/regulate the fuel pressure?<br /><br />Thanks.

 

[Yepblaze]

Re: Fuel Pump Pressure ?'s

Have yet to see an outboard that NEEDED fuel pressure regulation. <br /><br />Spitting from carbs is somewhat normal to a small extent. Also on 2 stroke motors a small amount of unburned gas and oil from exhuast at idle speed(s) is somewhat normal.<br /><br />If the carbs are dumping raw fuel and dribbling all over the place it's time to remove them and clean or replace the needle/seats.<br /><br />If you are experiencing a lot of sprayback out of one carb it might indicate bad reeds. This will also be evident as a loss of power/ poor idle/ stalling because that cylinder isn't running well, if at all.