Mercury/Mariner 40hp (around 2000)

[Mckessack]

Hi , can anyone tell me the age of my engine ? The serial number is OP004403 possibly I think ! Thanks Rob

 

[TChancey]

I have 40 3cyl 2 stroke having trouble getting it to get up and plane out when in water! Change filters,It runs great at home it will open up full throttle