Yamaha TT-R90 2006 Owner's Manual page 49

CAUTION:
G Make sure that the mesh and the
sponge material are properly
seated in the air filter case.
G
The engine should never be op-
erated without the mesh and the
sponge material installed, oth-
erwise the piston(s) and/or cyl-
inder(s) may
excessively worn.
8. Install the air filter case cover by in-
stalling the screws.
NOTE:
Make sure that the spark plug cable is
routed as shown.
PERIODIC MAINTENANCE AND MINOR REPAIR
1. Spark plug cable
ECA15571
9. Install the panel.
To clean the air filter check hose
1. Check the hoses at the bottom of
the air filter case for accumulated
dirt or water.
become
1. Air filter check hose
2. If dirt or water is visible, remove
1
6-11
the hoses, clean them, and then
reinstall them.
6