Merc Carb Problems

hanniganbrett

Recruit
Joined
Jan 28, 2010
Messages
4
Hello,
I am having yet another carb problem on my '94 Merc Classic 40 HP. It starts up pretty easily and runs perfect at first, but after cruising for a while near WOT, the carbs start dripping when the RPMs are lowered to around idle. There is a lot of dripping, the fuel started dripping out of the powerhead through the drain holes :S. The engine cuts out and won't start for a while b/c its flooded.
I tried twice to reproduce it on the earmuffs, once it did the same thing but after that I couldn't get the problem to occur again. The motor may have been trimmed out a fair amount when the problem happened, could this be the reason for it?
I'm looking for any pieces of advice, especially if I don't have to pull off the carbs and rebuild them - I just rebuilt all the engine internals in this motor and I don't want to have to take the carb off again!
 

mke039

Seaman
Joined
Jan 4, 2010
Messages
69
Re: Merc Carb Problems

Sounds like.....you have to take the carbs apart and see why the float is not closing the inlet needle (needles) after staying open for a while during WOT.
Just a guess, perhaps someone else can chime in on this, this is interesting.
 
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