Yamaha CS50 User Manual

CHK
ADJ
CHANGING THE TRANSMISSION OIL/
AUTOLUBE PUMP AIR BLEEDING
3-12
CHANGING THE TRANSMISSION OIL
1. Remove:
• drain bolt 
Drain the transmission oil.
• oil filler cap 
2. Inspect:
• gasket  (drain bolt)
• o-ring  (filler cap)
Damaged

Replace
3. Install:
• gasket
• drain bolt
4. Fill:
• transmission case
AUTOLUBE PUMP AIR BLEEDING
The air bleeding must be done always the oil
tank is empty, when the intake lube is discon-
nected or the tank is disassembled.
NOTE:
The air bleeding must be done after filling the
oil tank.
1. Remove
• fan cover  (CS50)
• crankcase cover (right)  (CS50Z)
2. Remove
• drain screw 
Let the oil flow out until the air bubbles have
been removed.



Drain bolt
18 Nm (1.8 m • kg)
Transmission oil:
10W30 type SE or higher engine
oil or GL gear oil
Capacity:
0,11 L
CS50
CS50Z




4
2

Yamaha CS50 Specifications

General

Fuel Capacity	4.5 liters
Fuel System	Carburetor
Cooling	Air-cooled
Transmission	Automatic
Starting System	Kick start
Brakes	Drum brakes (front and rear)