white smoke

Evening all--new here, and have what I think is an injector pump issue. Bought a Yanmar 1700 in pieces a bit ago, put new head, rings/piston and injectors in. Starts easy with the decomp valve and runs, but has a lot of White smoke--thinking it's not burning all the fuel it's dumping through...

I'm sorta new here, been reading threads for a year or so. Finally have a problem of my own, not sure where to start. I have a 2016 BX-25D, sticker on motor says BX23. 565.3 hours. About a year and a half ago, I got the organisms in the fuel because I didn't know to keep the tank topped off...