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Upgrading Mariner 30 CV to 40 CV model ELO 1995

O

olivierhegy

New member
"Bonjour,

I have contacted

"Bonjour,

I have contacted my local dealer that told me that for upgrading 30 CV Mariner ELO 1995 to a 40 CV it is just a matter of the replacement of the Carburetor since all the remaining parts are the same.

Could you please confirm ?

Cordialement,
Olivier"
 
The 30 and 40 are the same mot

The 30 and 40 are the same motor. The carbs are the only difference and you don't even have to change the timing...
 
I have a 2000 30hp Merc.

Th

I have a 2000 30hp Merc.

The 30hp and 40hp reed valve assemblies are nearly identical. The only difference is the restrictor plate on the back of the 40hp reed valve assembly allows the reed valves to open more than on the 30hp.

Not sure if this applies to year 1995 Mariner.
 
"A question for Graham.

Wit

"A question for Graham.

With a 40hp carb placed on a 30hp engine, more air/fuel is now entering. Would there need to be an adjustment on the exhaust side of the 30hp?

Does your answer to Olivier's question also apply to a 2000 30hp merc?"
 
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