Yamaha XV19SW 2006, Service Manual

Page: 105 / 145

ENGINE
3-16
4. Remove:
• Air filter element “1”
5. Check:
• Air filter element
Damage
→
Replace.
NOTE:
The air filter needs more frequent service if you
are riding in unusually wet or dusty areas.
6. Install:
• Air filter case cover
CAUTION:
EC1D71002
Never operate the engine without the air filter
element installed. Unfiltered air will cause
rapid wear of engine parts and may damage
the engine. Operating the engine without the
air filter element will also affect the throttle
body synchronization, leading to poor en-
gine performance and possible overheating.
NOTE:
When installing the air filter element into the air
filter case, make sure that the sealing surfaces
are aligned to prevent any air leaks.
7. Install:
• Fuel tank
Refer to “FUEL TANK” on page 6-1.
• 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:
• Rider seat
• Rider seat bracket assembly
Refer to “GENERAL CHASSIS” on page 4-1.
• Fuel tank
Refer to “FUEL TANK” on page 6-1.
• Air filter case
Refer to “GENERAL CHASSIS” on page 4-1.
2. Check:
• Throttle body joints “1”
Cracks/damage
→
Replace.
3. Install:
• Air filter case
Refer to “GENERAL CHASSIS” on page 4-1.
• Fuel tank
Refer to “FUEL TANK” on page 6-1.
• Rider seat bracket assembly
• Rider seat
Refer to “GENERAL CHASSIS” on page 4-1.
EAS21030
CHECKING THE FUEL LINE
The following procedure applies to all of the fuel,
air vent and breather hoses.
1. Remove:
• Rider seat
• Rider seat bracket assembly
Refer to “GENERAL CHASSIS” on page 4-1.
• Fuel tank
Refer to “FUEL TANK” on page 6-1.
2. Check:
• Fuel hoses “1”
• Air vent hose “2”
• Breather hose “3”
Cracks/damage
→
Replace.
Loose connection
→
Connect properly.
CAUTION:
ECA14940
Make sure the fuel tank breather hose is rout-
ed correctly.
1
1
1