2004 250 hpdi

[bass2red]

Looking a at purchasing a boat with 2004 250 HPDI VMAX with 325 hours. Motor runs well and going to have a compression check done in person before purchase. I'm not concened with the reputation of these motors has i have been around plenty of them and think most of the issues arise from the lack of
good fuel system maintenace. What recommedations are there for me having a mechanic run through the motor and do a PM. What should be perfomed?

[Tucker]

Yamaha tech should survey engine. That includes plugging his laptop in and determining any problems.

[rodbolt17]

make sure ALL the regulator,ECU,oil pump linkrod and oil pump updates were done.

[Tucker]

make sure ALL the regulator,ECU,oil pump linkrod and oil pump updates were done.

Will the motor indicate this in a print out? In other words does it know if it has parts replaced or does the tech input that info?

[rodbolt17]

if it was properly done, the YMBS printout will show it.
my opinion of the Z and VZ 250 motors? they are worth about 18 cents a pound.

[Tucker]

if it was properly done, the YMBS printout will show it.
my opinion of the Z and VZ 250 motors? they are worth about 18 cents a pound.

The big blocks have a bad rep. How 'bout the small block HPDI?