Mercury carb swap help please.

[rvBilly]

Hello everyone, I have a 1985 18 hp Mercury outboard,it is the same block as the 25 hp of the same year, I was told mine is a de-tuned 25 hp engine, can I swap the 25 hp carb onto my 18 hp to obtain the 25 hp? Is the throat larger on the 25 hp carb, if not I thought about swaping the main jets, mine has a .046 main jet and the 25 hp has a .080 main jet, I`ve checked and both engines use the exact same reed setups, are there any restricter plates or such to remove, I feel this should be possible to swap but am not 100% sure, thankyou for any and all replies, Bill..