Engine idles too high when coming out of gear - Mariner 40
On my tender (Avon SR4), I have a Mariner 40 2-stroke auto-lube. (2000 - 2001)
When I start the engine, she idles fine. When I put her into gear and run at low RPM (not on the plane) and go back into neutral, she idles fine.
If i've been running on the plane / high RPM for some time and I then go back into neutral, it revs quite high. I don't have a tacho but i'm guessing approx 2000 RPM and stays like this.
I combat this by revving the engine with the idle-lever. I give it a quick blast of high(er) revs and then bring the lever back down. This brings the engine back to idle.
I'm at a total loss as to what the issue could be??