115 Merc Fuel dumping out all carbs when running

W

Wongway

Recruit
Joined
Jul 30, 2007
Messages
1
The motor starts and fuel comes out like crazy on all three float bowels. My engine serial # is 4236730? Any ideas if the flote bowels are where to start or the choke / enricher is. The choke "Click" does cause the choke to close and open when the buttom is opereated. The carbs are "A" type yet looking intheSELCO manual 65-89 the photograps do NOT look like mine at the top of the flote bowe. On page 4-24 the diagram does show the look of my carbs. Can you id this spicific carb? The obat sat for 6 years. This engine has always performed exclent. The Blues Angels are comming nesxt week and if I can I will GET HER DUNE! What should I do to address this fule spilling problem?

;-] Wrongway
 
Last edited:
Texasmark

Texasmark

Supreme Mariner
Joined
Dec 20, 2005
Messages
14,983
Re: 115 Merc Fuel dumping out all carbs when running

Not rocket science. If you have fuel coming out the carbs when running, your fuel pump is pumping more fuel than you are consuming and that your needle valves (attached to the carb floats) can control.

Sounds like time to do a set of carb kits and be sure to set the float correctly.

Mark
 
C

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,798
Re: 115 Merc Fuel dumping out all carbs when running

Wrongway, Put in a set of carb inlet needles and associated carb gaskets. The new style have an all brass seat with a stainless steel needle with a neopreme tip. Don't forget the brass gasket under the seat. Also, if you have the foam floats, replace them with the newer hard white plastic floats. Also make sure the little spring on top of the floats is intact.
 
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