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EAS30799
ADJUSTING THE EXHAUST GAS VOLUME
TIP
• Be sure to set the CO density level to standard,
and then adjust the exhaust gas volume.
• To adjust the exhaust gas volume, use the CO
adjustment mode of the Yamaha diagnostic
tool. For more information, refer to the opera-
tion manual of the Yamaha diagnostic tool.
1. Connect the Yamaha diagnostic tool to the
connector. For information about connecting
the Yamaha diagnostic tool, refer to
"YAMAHA DIAGNOSTIC TOOL" on page
8-28.
Yamaha diagnostic tool
90890-03231
EAS31130
REPLACING THE AIR FILTER ELEMENT
AND CLEANING THE CHECK HOSE
TIP
Check the air filter check hose "1" that is located
on the rear side of the air filter case. If dust or
water or both collects in the hose, clean the hose
and replace the air filter element.
1. Remove:
• Air filter case cover "1"
• Air filter element "2"
1
1
PERIODIC MAINTENANCE
2. Check:
• Air filter element
Damage → Replace.
TIP
• Replace the air filter element every 12000 km
(7500 mi) of operation.
• The air filter needs more frequent service if you
are riding in unusually wet or dusty areas.
3. Install:
• Air filter element
• Air filter case cover
Air filter case cover screw
1.2 Nm (0.12 m·kgf, 0.87 ft·lbf)
ECA20480
NOTICE
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 throttle body
tuning, leading to poor engine performance
and possible overheating.
TIP
When installing the air filter element into the air
filter case, make sure that the sealing surfaces
are aligned to prevent any air leaks.
EAS31179
CHECKING THE BREATHER HOSES
1. Remove:
• Battery
Refer to "GENERAL CHASSIS (1)" on page
4-1.
• Front side covers
Refer to "GENERAL CHASSIS (2)" on page
4-4.
• Fuel tank cover
Refer to "GENERAL CHASSIS (3)" on page
4-7.
3-8
2
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