Checking The Throttle Body Joints; Checking The Crankcase Breather Hose; Checking The Exhaust System; Checking The Canister - Yamaha YZF-R1 2020 Service Manual

EAS31318

CHECKING THE THROTTLE BODY JOINTS

1. Remove:
• Throttle bodies
Refer to "THROTTLE BODIES" on page
7-11.
2. Check:
• Throttle body joints
Cracks/damage → Replace.
Refer to "THROTTLE BODIES" on page
7-11.
3. Install:
• Throttle bodies
Refer to "THROTTLE BODIES" on page
7-11.
EAS30800
CHECKING THE CRANKCASE BREATHER
HOSE
1. Remove:
• Rider seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
2. Check:
• Crankcase breather hose "1"
Cracks/damage → Replace.
Loose connection → Connect properly.
ECA13450
NOTICE
Make sure the crankcase breather hose is
routed correctly.
1
3. Install:
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• Rider seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
EAS30625

CHECKING THE EXHAUST SYSTEM

1. Check:
• Exhaust pipe "1"
PERIODIC MAINTENANCE
• Exhaust chamber "2"
• Muffler "3"
Cracks/damage → Replace.
• Gasket "4"
Exhaust gas leaks → Replace.
2. Check:
Tightening torque
• Exhaust pipe nut "5"
• Exhaust pipe joint bolt "6"
• Exhaust chamber bolt "7"
• Muffler bolt "8"
• Muffler joint bolt "9"
Exhaust pipe nut
20 N·m (2.0 kgf·m, 15 lb·ft)
Exhaust pipe joint bolt
20 N·m (2.0 kgf·m, 15 lb·ft)
Exhaust chamber bolt
20 N·m (2.0 kgf·m, 15 lb·ft)
Muffler bolt
20 N·m (2.0 kgf·m, 15 lb·ft)
Muffler joint bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
9
8
7
EAS30626

CHECKING THE CANISTER

1. Remove:
• Rider seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
2. Check:
• Canister "1"
3-11
3
4
7
6
2
6
4
1
4
(8)
5