PERIODIC MAINTENANCE AND ADJUSTMENT
6-8
6
EAU18752
Removin
g
an
d
installin
g
the
panel
The panel shown needs to be removed
to perform some of the maintenance
jobs described in this chapter. Refer to
this section each time the panel needs
to be removed and installed.
EAU54942
Panel A
To remove the panel
1. Slide the panel lock cover open,
insert the key into the lock, and
then turn it 1/4 turn clockwise.
2. Pull the panel off as shown.
To install the panel
1. Place the panel in the original po-
sition.
2. Turn the key 1/4 turn counter-
clockwise, remove it, and then
slide the panel lock cover closed.
EAU19643
Checkin
g
the spark plu
g
s
The spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos-
its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center electrode of each spark plug
should be a medium-to-light tan (the
ideal color when the vehicle is ridden
normally), and all spark plugs installed
in the engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced.
1. Panel A
1
1. Panel lock cover
2. Unlock.
1
2
UB33E0E0.book Page 8 Monday, December 1, 2014 4:49 PM
