Gear ratio Merc500 50HP

[GonzagaCRO]

Hello,

I have a blue band 1974 Merc 500 50HP 2 stroke 4 cyl, serial number 4078037.
I can`t find gear ratio of my LU, please help me I need to re-prop my boat but without this information it`s pointless.

Best regards

 

[Bondo]

Re: Gear ratio Merc500 50HP

Ayuh,... I donno, but it isn't a real Problem with reproping anyways....

What are the rpms at wot now,..??
If the rpms need to be Higher, put a lower pitched prop on...
If the rpms need to be Lower, increase the prop pitch...

 

[Faztbullet]

Re: Gear ratio Merc500 50HP

The ratio is 2.1