1999 mercury force 75 hp carb problems

[Stefano]

Had a hard time starting my motor it would flood but when i disconnected the fuel line and cranked it a few times it would start but once connected fuel line it would stall and would notice fuel in the carbs. when i would prime the fuel line fuel would come out of the carbs i tapped the carbs a couple times and then cranked it over a few times and runs perfect took it for a ride lot of power but after i shout the motor down checked the carbs there was still a little fuel is that normal and what couldit have been that the motor wouldnt start before i tapped the carbs. newbie at this stuff just ordered repair manual for my motor.

 

[jerryjerry05]

Re: 1999 mercury force 75 hp carb problems

Only thing inside a tap might fix is the needle/seat.Your carb might be full of junk.Check for water.You have a fuel/water seperator?Ethanol is messing with fuel systems.Clean carbs and let us know.Fill out the profile.You might be close to someone who can help.J

 

[Stefano]

Re: 1999 mercury force 75 hp carb problems

can i use carb cleaners in the fuel or what type of fuel should i use

 

[Stefano]

Re: 1999 mercury force 75 hp carb problems

No luck yet still having same problems. Maybe fuel pump ?

 

[jerryjerry05]

Re: 1999 mercury force 75 hp carb problems

Yes go through the whole system.Change/rebuild the fuel pump.Change all the hoses even the squeezie.REmove all quick connects.Replace them or just leave them out.
In the fuel:use Seafoam or Mercurys Power Tune. Follow the directions.
Ethanol needs additives to stabilize it.If you can find E free gas it's best.
The enrichment valve or choke might be defective.Unhook the fuel line from the carb to the choke and blow through it.Then push the button on top of the choke,blow again.Air shouldn't blow through both times.There is no rebuild on this it's a replace with new.About $100 boats.net
Start it and then un-hook it and see if it makes any difference.Jerry

 

[Stefano]

Re: 1999 mercury force 75 hp carb problems

no luck yet