Fuel pump 4 DT200

[nskifac]

My DT200 seems to run out of fuel once up on plane (i installed new stock pump diaphrams). Why? I got no Idea, so I'm thinking of running an inline pump to supplement the stockers. Should I do a low pressure or high? Thanks for the help.

[seaox230c]

It sounds like the problem is in your fuel tank and not the engine. With the bow up, fuel is pushed to the back of the tank keeping the pickup submerged but when the boat levels off the pickup is sucking air. It could also be your tank vent is blocked /restricted. Try the same thing with your fuel tank cap off..if it fixes it , your vent is bad. Lastly check the pump ball when your starving...if its collapsed its the tank side problem...if firm then it could be an engine side problem

[nskifac]

Thanks for the insight

You gave me acouple of good ideas to look into. I'll report back when the problem is solved.

[seaox230c]

Did you ever figure out your fuel problem?