Bogging down at higher RPM's

[dvan1901]

I have a 1993 Larson All American 190 with a Yamaha 4.3 V6 in it. I took it out the other day and it ran great up to about 4,000 RPM, but when I would go to open it up to about 4,400-4,500 RPM's it would bog and lurch. The built-in overrev doesn't kick in until about 5,200 RPM's. It was the first time is was ran wide open all year, but I was thinking of putting some fuel cleaner in it and checking the plugs. Is there anything else I should pay attention to at this point, or just see where this gets me?

 

[SpinnerBait_Nut]

Re: Bogging down at higher RPM's

Inboard engine.

 

[Don S]

Re: Bogging down at higher RPM's

Do a full tuneup, not just a "Check the Plugs". <br />Cap, rotor, and plugs replacement. Check the timing and adjust the carb (If it has one).<br />Also check the plug wires.

 

[Reel Poor]

Re: Bogging down at higher RPM's

Replace the fuel filters. There should be in the inlet side fitting of the carburator also. (If it has one)

 

[pvisser]

Re: Bogging down at higher RPM's

Check your water/fuel separator if it has one, I think all do.