SPECS

[krayz]

"Hi,
I have a 75 70 hp Joh

"Hi,
I have a 75 70 hp Johnson. Need to know what weight of lower unit lube to use and how to change it and what the compression should be? Also where might I find a repair manual for this engine?"

 

[jwbmarine]

"hypoid 90---standard outboard

"hypoid 90---standard outboard lower unit oil-(hi-vis)--
remove both drain plugs,fill from bottom,when oil comes out top hole,plug it,then remove tube from lower hole-plug it..done.
100+ comp is preferable.
manual--on this site..at top of page---(get a FACTORY service manual)"