Yamaha YZ 2019 Series, Owner'S Service Manual

Page: 101 / 398

ENGINE
3-13
4. Install:
• Exhaust pipe protector
EAM30222
CHECKING THE FUEL LINE
1. Remove:
•
Seat
• Side cover (left/right)
•
Air scoop (left/right)
Refer to “GENERAL CHASSIS” on page 4-1.
•
Fuel tank
Refer to “FUEL TANK” on page 7-1.
2. Check:
• Fuel hose “1”
Crack/damage

Replace.
Loose connection

Connect properly.
3. Install:
• Fuel tank
Refer to “FUEL TANK” on page 7-1.
• Air scoop (left/right)
•
Seat
• Side cover (left/right)
Refer to “GENERAL CHASSIS” on page 4-1.
EAM30224
CHECKING THE ENGINE OIL LEVEL
1. Stand the vehicle upright on a level surface.
2. Start the engine, warm this up for 3 minutes,
and then stop the engine and wait about 5
minute.
3. Check:
•
Oil level
The engine oil level should be between the
minimum level mark “a” and maximum level
mark “b”.
Below the minimum level mark

Add the
recommended engine oil to the proper level.
NOTICE
ECA24290
• Since engine oil also lubricates the clutch,
the wrong oil types or additives could
cause clutch slippage. Therefore, do not
add any chemical additives.
• Do not allow foreign material to enter the
crankcase.
Exhaust pipe protector screw
10 N·m (1.0 kgf·m, 7.4 lb·ft)
LOCTITE®
2
1
4
3
4
T
R
.
.
1
Recommended brand
YAMALUBE
SAE viscosity grades
10W-40, 10W-50, 15W-40, 20W-
40 or 20W-50
Recommended engine oil grade
API service SG type or higher,
JASO standard MA
a
b