DT 225 Bogging down

[alwaysfishing12]

Get up on plane (5000 Rpm) motor runs for a while then lose pressure. Replaced high pressure fuel pump, and filter, low pressure fuel filter, spark plugs, fuel separator. Still bogging down. Any one have same issues? 1995 motor. Thanks

[Tom Campbell]

What is the condition of your fuel primer bulb when this happens? By chance does it "cave in"?

[NealTrombley]

Are you sure its not shutting down to like 2500 rpm and staying there? it could be that pain in the butt Fuel flow sensor..I had that issue and I unplugged it and have run 100s of gallons of fuel thru it and no issue..

[crafthorse]

Im having the same problem on a 88 DT40. Still trying to figure out what the problem is.

[harl14]

Pull Your fuel injectors and send them and have them cleaned by a proffesional who can clean and reset them.

[turbojoe78]

What is the condition of your fuel primer bulb when this happens? By chance does it "cave in"?

What Tom said ... if you have a restriction in your fuel tank vent or your fuel pickup it would act like that.

Try running the motor from a known good portable fuel tank and if you have no problem with that you can start checking the fuel tank.

[harl14]

Did you fix your motor? Tell us.