my 25 hp won't idle

[dmatco50]

I have a 2003 suz 25 hp four stroke....i have to keep the rpms up to keep it running. How hard is it to clean my injectors and or clean my idle control value. I puschased a book on the suz 25 showing all the parts. I prefer to do my own repairs it possible..I only use non ethenol gas...Thanks for any help

[boats.net]

Can spray them with Mercury Power Tune and let soak for 30 minutes and blow out with air.