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  #1 (permalink)  
Old 08-12-2011, 03:06 PM
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Join Date: Aug 2011
Posts: 1
Default 50 pk mariner 4 cylinder s/n 9440491
we have old 50pk marine we test the engine
we have not more than 2000 rpm

no dirty on propellorshaft

we cheked the carburator inside
he got 100 % open

all carburateur jets clean and good

ignition timing is good

all cylinders ignition



what is wrong with the engine
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Old 08-24-2011, 07:28 PM
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Join Date: Feb 2011
Location: Fl. Keys
Posts: 157
Default
Maybe reeds?
If it blows air out of the carb/carbs when running you need to look at the reeds
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