What Lower Unit Oil for a 1990 9.9 4stroke High Thrust?

[mnwolftrack]

Hopefully an easy answer: I'm just looking to see what kind of lower unit oil I should be putting in my 1990 Yamaha 9.9HP 4 stroke high thrust. I would ask the guy at the parts counter at the yamaha dealer, but they sold me the wrong lube last year (different motor). I quite frankly don't trust them! If I can just use standard lower unit oil, then I am actually set because I still have some at home.

 

[Ruggybuggy]

Re: What Lower Unit Oil for a 1990 9.9 4stroke High Thrust?

Go to the Yamaha website and see if they have an owners manual to download. More than likely 90W gear oil but check the manual.

 

[mnwolftrack]

Re: What Lower Unit Oil for a 1990 9.9 4stroke High Thrust?

Manuals are only available online for 1998 and newer.

 

[Ruggybuggy]

Re: What Lower Unit Oil for a 1990 9.9 4stroke High Thrust?

Ask your local dealer. He shouldn't have a problem telling you.