2004 40HP EFI Idle Speed To Fast

[bbrnhart]

I have a 2004 Mercury 40ELPTEFI motor that idles at about 1200 to 1500 in the water. How do I adjust it down? I think it is supposed to ba at about 750.

 

[Urbina]

Re: 2004 40HP EFI Idle Speed To Fast

there is a idle screw that controls all the carbs if more than one.
start the engine and start moving it after its warm little at a time.
also keep a eye on your RPM and stop when your in range.

 

[bbrnhart]

Re: 2004 40HP EFI Idle Speed To Fast

This is a fuel injected motor not carburated

 

[Timestep]

Re: 2004 40HP EFI Idle Speed To Fast

I had this on a 30efi. I had to get the Mercury guy to plug in his computer, then change a part.

Dave