Rebuilt carbs- new reed valves, new gaskets, etc. boat started hard, a little worried

kippstakes

Petty Officer 2nd Class
Joined
Jun 10, 2013
Messages
117
Just put my carbs and reed valves back on my 72 Evinrude 50hp Lark, along with all new gaskets. Everything seems tight as a drum. Carbs are spotless and floats have be set.
After putting the assembly back together I tried firing her up and it simply would not start. I figured maybe I had flooded it or had a weak battery (though the batt seemed strong). I have it a few hours to settle and put the batt on the float. When I tried it again it still didn't seem to want to run. I ended up having to push to almost WOT and crank it repeatedly. The engine would fire once then die with a pop, and the starter would disengage.
After doing this for a while she finally fired up and is running great now, but it makes me anxious about the possibility of a repeat.
Is this normal for engines that have had the fuel drained or is there a potential problem? I've been out on boats that have starting problems on the water, and it makes for an unpleasant day.

Thanks

note: the carbs are from a newer model and have plugs instead of slow needles.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
36,269
Re: Rebuilt carbs- new reed valves, new gaskets, etc. boat started hard, a little wor

A motor with clean carburetors will start right up.----Does not matter whether they have been empty for a week or 10 years.
 

iwombat

Captain
Joined
Jul 12, 2006
Messages
3,767
Re: Rebuilt carbs- new reed valves, new gaskets, etc. boat started hard, a little wor

Problem with the choke set-up? Take the air cover up and make sure the choke plates are closing all the way.
 

kippstakes

Petty Officer 2nd Class
Joined
Jun 10, 2013
Messages
117
Re: Rebuilt carbs- new reed valves, new gaskets, etc. boat started hard, a little wor

Choke plates seem to be closing/opening properly. The floats have been adjusted to the middle point of the manual's range (from the bottom of the float to the flange: no lower than 1 5/8, no higher than 1 1/8''). The bulb pumps up hard as a rock- NO air in the vacuum circuit. Reeds are all flush with the valve body, so there shouldn't be an issue there. I guess I might have flooded it a bit when I first tried. Will take her for a spin tomorrow and see how goes.

Thanks
 
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