I have 1987 Johnson 20 hp outboard motor and need to know how much oil the lower unit holds.

Moved to a better category

Details for older engines
https://shop.evinrude.com/category/342499/Literature

Parts Manual
https://www.crowleymarine.com/johnson-evinrude/7700.cfm

Factory service manuals and Clymer type manuals are available for a small cost and are worth the outlay.

https://www.google.com/search?q=1985+johnson+25+hp+outboard+manual

..

ok so you have removed the propeller from the leg so now you need to get a spanner to fit the nut then turn the engine clockwise to undo the pinion gear

https://www.google.com/search?q=1957+johnson+outboard+10+hp+fuel+oil+ratio

What is the mix ratio for a Johnson outboard motor?

Any Johnson outboard motor built since 1964 requires a 50/1 fuel ratio. Motors built prior to that date require a 32/1 ratio, with the exception of a few fishing motors built prior to 1955 that use a 16/1 ratio.

Feb. 22, 2021

What is the mixing ratio for a Johnson outboard motor? - Mvorganizing.org

drive shaft oil seal and possible shaft
take it to an outboard service shop as it may require special tools for the job

most 2 stroke motors will not burn all the oil in the mix and that unburned oil coats the exhaust leg and leaks out the thru hub exhaust and parting line of the lower to the housing. so keep some windex handy and clean it up.

Here is a site where you can purchase the service manual to repair your outboard motor:
http://www.tradebit.com/G/manuals/-/0-0-johnson+130+hp

put into nuetral,undo the five bolts around lower unit,take off sideplate halfway down leg casing,loosen the two bolts clamping the gear rods together,then lower unit should slide down[if driveshaft isnt stuck in the crankshaft spline].assembly is reverse,but take care putting water tube back into rubber grommet,and tighten gear rod clamp only after making sure that g/box is in nuetral,when gear lever also in nuetral,or matched together

remove the bottom drain screw first then place a tube of the proper lower unit oil in it. then remove the top screw and gently squeeze the tube of oil and when full it will slowly come out the top drain hole. when it does replace the lower plug first then the top plug second. make sure the seals are in good shape and plan on changing the oil in the lower unit yearly for proper maintainence. make sure you buy oil designed for your particular type of motor. good luck.

if you haven't fixed this already, take the pastic water pick up covers off there are two joiner nuts in there undo them, there is a plastic cone on each end take them off and it will slip through. I own the same model and year outboard.

Hello there
here is a good place to start ok Outboard (wiring A Tachometer To An Outboard, Mercury Outboard Float)
merc outboard motors mercury outboard ... diagram of mariner outboard motors johnson outboard fuel problems ... johnson outboard motors ebay 1996 115 hp mariner outboard

• tipsterdatabase.com/mods.php?id=outboard
• · Cached page