Rebuild Carbs / Fuel pumps Mercury 500

[Uxboat]

I am having problems getting my Mercury 500 to run proper this 1977 50 hp does not want to rev up unless I squeeze the fuel bulb.Replaced spark plugs with surface gap type,new fuel filter,tank and fuel lines and ordered new kits for carbs and fuel pumps.My question is

If I take one carb unit off one at a time and am care full with the linkage can I avoid the LINK N SYNC thing ?Looks like a lot might have to come off to remove the carbs.Gladly listen to anyone who has done this.
Thanks Mike with the list of problems with this thing, going to need a longer summer!

 

[75TowerOfPower]

Re: Rebuild Carbs / Fuel pumps Mercury 500

You should still do a linc and sync since now the carbs could be completely different. Like there could be some varnish build up in a port and you may have that idle screw set far out. So now you will want to do it to make sure one carb isn't leaned out too much.

 

[Uxboat]

Re: Rebuild Carbs / Fuel pumps Mercury 500

Okay Tower of Power,my thinking was I might make matters worse trying to set the timing as stated in the other post on the subject.Still like to hear from somebody who has done a older 500 and got it right.

the link: http://forums.iboats.com/showthread.php?t=168855