Checking The Fuel Line; Checking The Cylinder Head Breather Hose; Checking The Exhaust System - Yamaha YZ250F 2024 Owner's Service Manual

Crack/damage  Replace.
EAM30222

CHECKING THE FUEL LINE

1. Remove:
• Seat
• Side cover (left/right)
• Shroud (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.
• Shroud (left/right)
• Side cover (left/right)
• Seat
Refer to "GENERAL CHASSIS" on page 4-1.
EAM30476
CHECKING THE CYLINDER HEAD
BREATHER HOSE
1. Check:
• Breather hose "1"
Crack/damage  Replace.
Loose connection  Connect properly.
ECA14920
Make sure the cylinder head breather hose is
routed correctly.
1
EAM30221

CHECKING THE EXHAUST SYSTEM

1. Remove:
• Exhaust pipe 1
• Exhaust pipe 2
Refer to "ENGINE REMOVAL" on page 5-6.
2. Remove:
• Exhaust pipe protector
3. Check:
• Exhaust pipe 1
• Exhaust pipe 2
• Silencer
Crack/damage  Replace.
4. Check:
• Silencer fiber
Damage  Replace.
5. Replace:
• Silencer fiber
1
a. Remove the bolts "1" and silencer body
ECA25800
Do not hit the silencer stay "a" as it may do
damage to the silencer.
Remove the inner pipe while holding the silenc-
er in place with a vise etc.
3-19
1
"2".
ENGINE