Checking The Throttle Body Joints; Checking The Crankcase Breather Hose; Checking The Exhaust System - Yamaha 2009 YZF-R1 (Y) Service Manual

Throttle cable free play
3.0–5.0 mm (0.12–0.20 in)
4. Install:
• Fuel tank
• Fuel tank side cover
Refer to "FUEL TANK" on page 7-1.
• Rider seat
Refer to "GENERAL CHASSIS" on page
4-1.
EAS21010

CHECKING THE THROTTLE BODY JOINTS

The following procedure applies to all of the
throttle body joints and intake manifolds.
1. Remove:
• Throttle bodies
Refer to "THROTTLE BODIES" on page
7-12.
2. Check:
• Throttle body joints "1"
Cracks/damage → Replace.
3. Install:
• Throttle bodies
Refer to "THROTTLE BODIES" on page
7-12.
EAS21070
CHECKING THE CRANKCASE BREATHER
HOSE
1. Remove:
• Rider seat
Refer to "GENERAL CHASSIS" on page
4-1.
2. Remove:
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
3. Check:
• Crankcase breather hose "1"
Cracks/damage → Replace.
Loose connection → Connect properly.
ECA13450
Make sure the crankcase breather hose is
routed correctly.
PERIODIC MAINTENANCE
4. Install:
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
5. Install:
• Rider seat
Refer to "GENERAL CHASSIS" on page
4-1.
EAS21080

CHECKING THE EXHAUST SYSTEM

The following procedure applies to all of the
exhaust pipes and gaskets.
1. Remove:
• Rider seat
Refer to "GENERAL CHASSIS" on page
4-1.
2. Remove:
• Passenger seat
Refer to "GENERAL CHASSIS" on page
4-1.
3. Remove:
• Side cowlings
Refer to "GENERAL CHASSIS" on page
4-1.
4. Remove:
• Rear brake master cylinder
Refer to "REAR BRAKE" on page 4-43.
5. Remove:
• Radiator lower bracket
Refer to "RADIATOR" on page 6-1.
6. Check:
• Exhaust pipe "1"
• Exhaust chamber "2"
• Mufflers "3"
Cracks/damage → Replace.
• Gaskets "4"
Exhaust gas leaks → Replace.
3-11