Lower unit oil?

kbert1171

Seaman
Joined
Feb 5, 2017
Messages
71
I'm winterizing my new-to-me 1987 Astroglass Bass 151 with a 1986 Yamaha 50ELJ outboard, and I need to know what weight and how much lower unit oil to use. It did not come with a manual and I can not find the information anywhere online. Also, should I run antifreeze through it as well? Its being stored in my garage, but its unheated(for now)
Thanks in advance.
 
Joined
Mar 1, 2005
Messages
923
Agreed. Use the Yamaha lube. How much to use is always the same...pump it until it comes out of the upper hole. Then let it sit for a while for any air bubbles to rise up, and give it any extra pump or two to ensure it is truly full.

Also, I highly recommend attaching one of those bottle top hand pumps instead of merely squeezing one of the quart bottles. Squeezing the quart bottle is fine on smaller hp motors, but if your lower unit uses more than half of a quart you will likely squeeze air into the lower unit. That is a recipe for melting your lower unit next summer.
 
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