Laz200neto hpdi

[99yam40]

Is the rail pressure in spec?

too high and it could be rich on all cylinders.
maybe a leak , but you should be able to see that

or injector leaking by

Hopefully rodbolt will come on and give you some input

[pstephens46]

Is it using more fuel than it once did? How long have you owned it?

4000 lb boat dry weight? So maybe 5800lbs loaded?

Wonder what prop is on the motor? May not be ideal. What is your max rpm?