150 Honda fuel shock treatment

[ffengine28]

I have a 2003 150hp Honda with between 4000 and 5000 hrs on it. The engine runs good and I was thinking about doing a fuel shock treatment with yamaha ring free. I have never used this stuff before. Any suggestions.

 

[Outsider]

Re: 150 Honda fuel shock treatment

I'm not sure I'd be doing a 'shock treatment' unless there are indications of carbon issues. Run a double dose of SeaFoam for awhile if you feel you need something ...