Yanmar 4jhte55 still some smoke after new injectors

[conj]

My Yanmar 4jhte55 was a bit smokey and was suggested that the injectors get serviced. They were not performing well during service so I had to replace with new ones.
After replacing still a bit smokey and i can see some fuel in the water although everything seems to run well.
Took it out for a good run and looked ok but next day starting her up and running for a while at the marina, still a bit smokey and some fuel ending in the water.

Any ideas where to look..?

Conj

[ItDepends]

If you are not burning all the fuel you are injecting, there are only a few possible causes.

*Poorly atomized fuel
We can probably eliminate this, since you have all new injectors.

*Too much fuel
*Poor fuel injection timing.
Could be the performance of the injection pump is not up to par.

*Not enough air
Not likely, this is a naturally aspirated engine, right?

*Poor compression
And this too...

Are you sure it's fuel not oil? Is the engine performance normal? Does it still get up to the full RPM at wide open throttle?

[conj]

The seems to run fine...sitting on about 2800 the oher day and ran fairly smoothly.
There is the rainbow like sheen in the water and does smell a bit like Diesel....I figure if the smoke was dark colour then maybe oil but it is a white smoke.
It's not aheap of smoke unless you give it a burst but out there running on higher revs, seems clean but I guess you are more likely to see it sitting in a Marina berth.