200hp 200hp Merc ob w/carbs. Excess fuel from all carbs

starfliteVT

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Joined
May 15, 2005
Messages
4
Recently rebuilt my 2001 200hp OB Merc (carbs).<br />I am running it heavy on oil due to a new bore and piston ect. So, that means, 50:1 from the oil injection, and 50:1 from my main gas tank.<br />PROBLEM: I seem to get excess fuel out off all the carbs.<br /><br />-Could this be just because I am running with so much oil?<br /><br />-I checked the enricher and it's only getting power when engaged at the key (choke).<br /><br />-With one piston over bored a little, do I need to adjust all the carbs?<br /><br />-Could the Thermal air valve be stuck/malfunctioning?<br /><br />-Maybe I hooked up a vacuum line or other line wrong???<br /> - - - please post or email to: goodsir1322@yahoo.com
 

starfliteVT

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May 15, 2005
Messages
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Re: 200hp 200hp Merc ob w/carbs. Excess fuel from all carbs

wow. <br />this site is really helpful?????
 

gss036

Commander
Joined
Jan 18, 2003
Messages
2,914
Re: 200hp 200hp Merc ob w/carbs. Excess fuel from all carbs

Sorry no one responded/ I am not a mechanic but do a lot of my own maintance. If you are getting excess fuel to the CARBS, I would think that the floats in the carbs are not set properly. I don't have any adjustments on my carbs as they are all fixed jet, low speed/high speed.<br />Where are you seeing fuel? blowing out or running from the mouth of the carbs or running out the exhaust?
 
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