Problem with F50 cold start

[Hugo Morcela]

I have 50HP 4 stroke 2004, im having a problem starting cold. After I finally get it started, run good after that its start perfectly. The spark plugs are new.

Sorry for my bad english, i'am from Portugal.

[99yam40]

I think this motor has the prime start system on it and not a choke.
Probably has some plugging in the fuel enrichment passages, a good cleaning of the carbs should take care of that. But they will need to be readjusted like manual says after cleaning and reinstalled