How do you clean the carbs on an outboard motor

All we do with this technique as youll see in a moment is lift the fast idle get the rpms up a little bit then I just take a rag and hold it in front of the carburetor completely choked it off. Let sit 15 minutes remove the air silencer from the carb while waiting restart motor and spray seafoam into each carb until it start to stall.

Another area to spray is the exposed ends of the cool heat riser shaft.

How do you clean the carbs on an outboard motor. How-To-In-A-Few video on cleaning the carburetors on an outboard boat motor. Get that engine running smoothly and starting on the first crank. An excellent way to clean an outboard carburetor without removing would be by using the Berryman B12 Carb Cleaner.

First blend 4 oz of the B12 with a full gasoline tank. Use a funnel to pour the B12 carb cleaner into the tank so the paint isnt ruined. Removing the Carb.

To investigate the problem further the carb needed to be removed. First the choke cable needed to be disconnected by releasing a small plastic clip and then lifting out the choke cable rod. It was easier to disconnect the fuel pipe from the fuel tap end.

When cleaning with the engine off you must remove the air cleaner and clean carburetor from the outside as well as the entire linkage. Another area to spray is the exposed ends of the cool heat riser shaft. Allow it to penetrate well before cleaning.

Also you should be moving counterweight up-down until it is completely free. Put the remaining seafoam in a spray bottle run the motor up to temperture remove the plugs one at a time spray some seafoam into each cylinder and replace plug. Let sit 15 minutes remove the air silencer from the carb while waiting restart motor and spray seafoam into each carb until it start to stall.

Repeat till seafoam is gone. Run out the rest of the gas. It is going to smoke like it is on fire and drip goo on the ground.

Replace the plugs with new ones and then do. All we do with this technique as youll see in a moment is lift the fast idle get the rpms up a little bit then I just take a rag and hold it in front of the carburetor completely choked it off. Once we got the rag over the front of the carburetors the piston goes down it tries to draw air in through the carburetor and because its blocked off it creates a really strong vacuum inside the carburetor.

How do you clean outboard carburetor without removing. An excellent way to clean an outboard carburetor without removing would be by using the Berryman B12 Carb Cleaner. First blend 4 oz of the B12 with a full gasoline tank.

Then go for a slow ride so the carb cleaner flows through the idle system. How do you drain a carburetor on an outboard motor. Well I think you got a not good but pretty standard price for carb cleaning.

In a big city at a high overhead repair shop I paid 3 bills to clean one tiny little carb on my 15hp Johnson. A couple of years later the same problem took me to a boatshop in a little out of the way burg. There a repair only cost me 50.

As weve established the primary way of cleaning outboard carbs with no removal is using a carburetor cleaner. To clean an outboard motor and carb you add the cleaner to a full gasoline tank run the motor for a bit and check the results. If necessary rebuild your carb.

In the end we hope that our guide on how to clean outboard carburetor without removing it provided you with helpful insight into carb cleaning. How much do you really know about carburetors. If youre like me not much beyond the fact that if a gas engine isnt running right its probably the carbs fault.

While some gas engines inboards outboards generators being the most common on cruising boats have direct fuel injection most have a carburetor. Put on safety glasses or goggles. Blow through the fuel passages in the bowl with compressed air and an air nozzle to remove any remaining gel in the system.

Shoot carburetor cleaner through the passages and blow them out again with the air to ensure that they are clean. Remove the motors top cover. Pull up on the Fast Idle control.

Spray the Power Tune into the carburetor throat. Shut the motor off. Remove the spark plug wires by twisting them and pulling straight up.

Remove the spark plugs with a plug wrench. Remove an Outboard Lower Unit with a Stuck Drive Shaft. This is where fuel is introduced into the throat of the carburetor when the engine is idling.

If you look at the picture blow you can see the cleaner coming through it in a fine mist. This is what it might look like when the engine. Attach the nozzle to the cleaner and begin spraying down the outboard carburetor.

Make sure you insert the nozzle into all of the small crevices and holes you find. Allow the cleaner to work for several minutes and then wipe and buff each piece with a clean rag. Before putting the outboard carburetor back together you can replace the plug and sealer.

Drain each carburetor bowl. See IMPORTANT if not easily accessible 4. After removing gasoline from the tank and carburetor add a mixture of Sea Foam followed by 8 ounces of fresh gasoline 1 to 2 ratio.

With the cleaning mixture in the fuel tank crankprimerope-pull the engine to draw the cleaning mix into the carburetors.