Suzuki DF 90 Service Manual page 378

PROPELLER INSTALLATION
Install propeller stopper 1 onto propeller shaft, then slide on
the propeller 2.
Fit spacer 3, washer 4 and nut 5, then tighten nut to speci-
fied torque.
Push cotter pin 6 through nut and shaft, then bend to secure.
99000-25161: Water Resistant Grease
Propeller nut: 55 N . m (5.5 kg-m, 40.0 lb-ft)
GEAR OIL
Fill the gearcase with specified gear oil for initial testing and
recheck the level after 10 minutes.
Top up if necessary.
99000-22540: Suzuki Outboard Motor Gear Oil
DF140 "K2" ('02) MODEL 11-85