Anybody know anything about Mercury Outboards

[sigmawess]

Hey, Its been awhile since Ive been on here. Ive gotta a problem with my Mercury Outboard and was wondering if anybody might have an answer or suggestion. Ive got a 2007 90HP four stroke EFI. When I throttle I dont get power until half throttle. And from about 3/4 to full throttle I get no response. The max I can run is 3500 RPMs at 20 mph and it take forever to even get that. This motor used to easily push 50 at 6500 RPMs at full. The motor onlyt has 35 hours on it. Ts fuel injected so no carb, any clue? I can take it in but dont feel like spending a couple hundred on a small problem if thats what it is.

Thanks!

 

[Bigredmariner]

No idea here on the FI engines Wess, glad to see you're still alive at least.

 

[sigmawess]

Yeah man, this motor has me perplexed. Its good to see some of the familiar...faces. Ive been tied up with alot and havent been around in awhile.

 

[Bigredmariner]

Understandable. Maybe someone will have an answer or suggestion for you. I'm way behind on the whole FI stuff. Carburetors I might could figure it out but FI I'm just a dunce with that stuff.

 

[Texas Jim]

If you haven't already did this........

Check your air filter, fuel filter and especially the FUEL PRESSURE REGULATOR.
Check all of the connections on the throttle body and check the air flow sensor.

 

[rev353]

I would add Outboard to the thread title.

 

[Bigredmariner]

I would add Outboard to the thread title.

Good idea.

 

[Draenor]

If you haven't already did this........

Check your air filter, fuel filter and especially the FUEL PRESSURE REGULATOR.
Check all of the connections on the throttle body and check the air flow sensor.