2005 F150 4 stroke issues

[Big T]

I have twin f150's on my 26'cc.I have had issues since i bought this boat last year.My port engine is hard to restart after 20 min of full throttle and my starboard engine idles rough.The servicing dealer cannot find the problems.Any info would be helpful......

[Dennisg]

HI, do you know if your dealer used his diagnostics computer to check out your motors? If not, try to find a different Yamaha trained serviceing dealer. They should be still under warranty,if they were new last year.there is no excuse that he cannot find the problems.
Dennis

[boats.net]

Have your dealer check to see if it has the vapor recovery kit on engine.