I have a 2006 mercury, 25 horsepower four stroke. Every once in awhile when cruising at 5000 - 5500 rpms, I get the warning alarm, engine slows to an idle. I can turn it off then back on and it runs fine. Took it to a local mercury dealer, put a new oil pressure sensor in. Still doing the same thing, periodic alarm warning etc. took it back to dealer, checked for engine codes, didn't find any and couldn't get the engine to replicate the problem. Charged me $60 and said they didn't know what to do.
Any ideas?
Thanks for any help you can provide.