I have a 2004 Mercury 90hp, 4 cyl, 4-stroke that has serious problems but the main problem at the moment is that the bottom carburetor is stuck. Since the linkage is connected to the bottom carb the engine is hard to speed up and to slow it to an idle I have to go back to the engine and tap the carb linkage with a screw driver and hammer. The Seloc manual says "Although a single carburetor can be removed individually from the motor for replacement or service, the procedure given here is to remove all 4 carburetors, as a unit, along with the intake manifold assembly." They don't give a procedure for removing a single carb. I just want to remove the currently offending carb, the bottom one. If anyone give me the procedure for removing a single carb, or point me in the direction of that procedure it would be much appreciated.
I'm just trying to get this engine to operator for a few more weeks until I get another. It's got almost 10,000 hours on it (Yes! really! almost 10,000 hours. It's on a commercial boat and has been used 4 to 5 days a week, 8 to 10 hours a day since May 2011), has a blown head gasket and leaks water into the lower unit, and will be replaced in a few weeks, so I want to spend as little time & money on it as possible so just want to free up the one carb.
I'm just trying to get this engine to operator for a few more weeks until I get another. It's got almost 10,000 hours on it (Yes! really! almost 10,000 hours. It's on a commercial boat and has been used 4 to 5 days a week, 8 to 10 hours a day since May 2011), has a blown head gasket and leaks water into the lower unit, and will be replaced in a few weeks, so I want to spend as little time & money on it as possible so just want to free up the one carb.