1992 90hp mercury mariner looses power at certain rpm

[cumberland cruiser]

Just this week end my engine was running great as usual when at 40,ooo rpms it started bogging down to 30,000 for no reason. when I increased the throttle to 45-50,000 rpms it would maintain that speed and not bogg down. This continued through-out the day. I don't like to run the engine that hard it was rebuilt 2 years ago and I like to run between 35-40,00 rpms. <br />Thanks<br /> C.CRUISER

 

[cumberland cruiser]

Re: 1992 90hp mercury mariner looses power at certain rpm

Hey I feel lonley! am I the only one this has ever happened to? Any suggestions will be welcomed<br />Thanks

 

[Barnacle_Bill]

Re: 1992 90hp mercury mariner looses power at certain rpm

40,000 RPM? Wow, that must be one fast boat. It almost sounds like a piece of linkage is loose.