2000 Johnson 175

[osup754]

For the last couple of years the motor a WOT will run fine at about 5200 RPM's for several minutes,then will bog down 300-400 rpm's If I back off the throttle it will
clean up but when you try to go back full thottle it will bog down again. I have replaced the fuel pump and power pack that was recommended by the dealer but has not helped a thing. Pumping the bulb or choking it does not help. Have also
sprayed gas in each carb at WOT and each cylinder bogs down which the dealer says eliminates it being a fuel problem. any suggetions would be appreciated.
Model # is J175PLSS Serial # is 04816925. I bought the motor new in 2000.


Modified by osup754 at 1:11 PM 4/6/2007

[THE WITCHDOCTOR]

What kind of pp did u replace it with?

[osup754]

I am not sure. I will have to check with the dealer.

[ChampioNman]

Pull the airbox cover off and verify that the butterflies are going perpendicular at WOT. Also check that the throttle roller is touching the timing cam on under the flywheel cover.