decarb an EFI engine

[smaples]

Does someone have a procedure for decarbing a EFI engine. It seem like every thing i read here is for carborated engines. Could you stray deep creep into each port of the throttle body while the engine is running?

 

[smaples]

Re: decarb an EFI engine

I failed to mention that the engine is a four stroke

 

[rodbolt]

Re: decarb an EFI engine

which model EFI fourstroke?
were a few versions made over the years.

 

[smaples]

Re: decarb an EFI engine

2002 mercury 115

 

[rodbolt]

Re: decarb an EFI engine

thats a yamaha with a black dress on.
easiest way to decarb it is mix a solution of 2 oz ring free per gallon of fuel in a portable tank, run about 3 gallons through the engine.
why ya think it needs a decarb?

 

[smaples]

Re: decarb an EFI engine

I don't know if it needs decarbed or not. Viewing the tops of the pistons through the spark plug holes, I can see deposits of something on them, so I thought it might be a good idea to decarb. I have just acquired this engine and do not know its history.

Thanks for your reply

 

[jeffersondodson561]

Re: decarb an EFI engine

I agree with Rodbolt quickkleen or ringfree, but if you just aquired the engine I would worry about complete service with impeller before you decarb.
Those are good motors, Park Service had one with over 2000 hrs and most of those people had no idea what a boat was. Never had any problems except for a few "shorts to ground" between the helm and the seat.