New Mercury 150 idle speed

[ursa minor]

I just looked quickly on line and found the owners manual for what I believe is your engine. Idle speed in neutral is listed as 650 RPM when fully warmed up.

You should have gotten a full literature package with all the owners information from the boat and engine manufacturers, if you didn't receive it I'd recommend contacting the dealer to get it. If you did get the package, the engine specs were listed on page 54.

We have a 90 HP Etec on our Whaler, it idles at 650 RPM in neutral but will automatically speed up to about 800 RPM when you put it in gear. It may be that Mercury has a similar feature. Good luck with the new boat, everything I've heard about that engine has been positive. Where it's so new, if you think anything is not normal I'd recommend a call to the dealer to be sure.