correct oil/fuel ratio for a 2000 50hp

[dandaman]

I don't have a manual yet I'm holding out for a proper yamaha shop manual
Anyways I picked up a used 50 hp year 2000 2stroke and I'm currently mixing 50:1 and have been told by a few people that I could go with 100:1 but I just wondered what the factory recommended ratio is
Anyone know for sure
It seems a little smoky but better than no smoke at all

[99yam40]

have you tried reading the owners manual for your motor?
Outboard Owners Manuals

You can also pick up service manuals from them or any Yamaha dealer

[200090tlry]

If you do not want smoke try semi syn oil

Pennzoil semi syn is pretty good and run at 50 to 1. Motor only needs 100 to 1 at idle but all out needs 50 to 1.