White smoke after rebuild

Jonny777

New User
Hi all, i rebuilt my John Deere 750 motor with a yanmar 3t80uj, i started it up for the first time and it poured white smoke out of the exhaust and ran rough like there was water in the fuel, but i drained the fuel system and added fresh diesel,

Rebuild was a new piston, rings and gaskets, i didn't touch the injection pump or injectors

It's starts great, no smoke from dipstick tube or oil fill cap when open, just lots of white smoke out exhaust and stumbles when you give it throttle
 
Haven't checked that yet i took the injectors off the clean them, one pintle was stuck, have to get some gaskets then check
 

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