Rough Idle, Rich out of exhaust one fouled Carb

mrod322

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Apr 13, 2009
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1995 225 V6 j225TRXEOB

Just had cardb completely rebuilt buy local shop.

I noticed that cylinder 4 plug is fouled and the engine is smoking a lot. Also i notice some black stuff like oil coming out of the prop/lowerunit.

I premix 50-1 disconnected cables for VRO.

The jets are 2 3/4 turns. When they adjusted the carbs the power pack was only putting out 75 on the DVA even though i had spark. I replaced power pack, now i have 150 DVA reading and i have this issue.

Can a much stronger spark throw off the carb adjustmnet?
I really dont want to go back to the mechanic ( not really a straight shooter).

If i bring the mixture screws down i get an eratic head shake so i dont want to lean and blow the motor. Can I blow the motor by leaning out the mixtur screws they are only low jets...What should i do?
 

Benny1963

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Sep 17, 2006
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Re: Rough Idle, Rich out of exhaust one fouled Carb

yes ya can blow it quick leaning out run a compression check,
you can spray a little premix into each carb if it stalls its good if it picksup its lean .dont run it lean or it will burn a piston quick
 

mrod322

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Re: Rough Idle, Rich out of exhaust one fouled Carb

compression checks out fine...
 
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