Hello, I have a 2002 Mercury 90hp Elpto I am getting ready to attempt to clean and repair the carburetors. I would like to know if someone could tell me if the 3 Carburetor's are the same and if it matters in which order the get installed. They all look the same to me and I cannot find anything that tells me different. Also, to let you know the reason that I am doing this is in testing the number 3 cylinder seems to be having a problem getting fuel and would only fire periodically. There also seems to be a problem with fuel consumption, even sitting at idle in the driveway it will suck the gas and seems to have excess from the exhaust like maybe the float is stuck. Any Help would be appreciated.