YAMAHA GRIZZLY 660 2007 Owners Manual

8-7
8
EBU23070NOTE:
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years replace the internal components of the brake master cylinders and calipers, and
change the brake fluid.Replace the brake hoses every four years and if cracked or damaged.
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8-8
8
EBU23090Removing and installing panels The panels shown need to be removed to perform
some of the maintenance jobs described in this
chapter. Refer to this section each time a panel
needs to be removed and installed.
EBU27051Panels A and D
To remove one of the panels1. Remove the seat. (See page 4-18.)
2. Pull outward on the area shown, and then pull
upward as shown.
1. Panel A
2. Panel B
3. Panel C
1. Panel D
2. Panel E
3. Panel F
4. Panel G
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8 To install one of the panels
1. Insert the panel projections in the numerical
order shown in the illustration, and then push
inward on the area shown.
1. Panel A
1. Panel D
1. Panel A
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82. Install the seat.
Panel B
To remove the panel
Remove the bolts, and then take the panel off.To install the panel
Place the panel in the original position and install
the bolts.CAUTION:ECB00380When installing the panel, be sure not to pinchthe cables or wires.
Panel C
To remove the panel1. Remove the front carrier by removing the stay
covers, then by removing the bolts.
1. Panel D
1. Panel B
2. Bolt
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8
2. Remove the quick fasteners and pull the pan-
el upward.
1. Front carrier stay cover
1. Carrier bolt (top)
1. Carrier bolt (top)
1. Carrier bolt (under the fenders)
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8To install the panel
1. Place the panel in the original position and in-
stall the quick fasteners.
2. Install the front carrier by installing the bolts
and tightening them to the specified torques.
3. Install the stay covers.Panel E
To remove the panel
Remove the bolts, and then take the panel off.
To install the panelPlace the panel in the original position and install
the bolts.
Panel F
To remove the panelPull outward on the areas shown.
1. Quick fastener
2. Panel CTightening torques:
Carrier bolt (top):
26 Nm (2.6 m·kgf, 19 ft·lbf)
Carrier bolt (under fenders):
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
1. Panel E
2. Bolt
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8 To install the panel
Place the panel in its original position.Panel G
To remove the panel
1. Remove the seat. (See page 4-18.)
2. Remove the rear carrier by removing the
bolts.
1. Panel F
1. Carrier bolt (top)
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83. Remove the seat under bracket and the panel
by pulling them off.
To install the panel
1. Place the panel and the seat under bracket in
the original position.
2. Install the rear carrier by installing the bolts
and tightening them to the specified torques.
3. Install the seat.
1. Carrier bolt (under the fenders)
1. Seat under bracket
2. Panel GTightening torques:
Carrier bolt (top):
26 Nm (2.6 m·kgf, 19 ft·lbf)
Carrier bolt (under fenders):
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
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8
EBU23221Checking the spark plug The spark plug is an important engine component,
which is easy to check. Since heat and deposits
will cause any spark plug to slowly erode, the spark
plug should be removed and checked in accor-
dance with the periodic maintenance and lubrica-
tion chart. In addition, the condition of the spark
plug can reveal the condition of the engine.
To remove the spark plug
1. Remove panel A. (See page 8-8.)
2. Remove the spark plug cap.3. Remove the spark plug as shown, with the
spark plug wrench included in the owner’s tool
kit.
To check the spark plug
1. Check that the porcelain insulator around the
center electrode of the spark plug is a medi-
um-to-light tan (the ideal color when the ATV
is ridden normally).
NOTE:If the spark plug shows a distinctly different color,
the engine could be operating improperly. Do not
attempt to diagnose such problems yourself. In-stead, have a Yamaha dealer check the ATV.
1. Spark plug cap
1. Spark plug wrench
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82. Check the spark plug for electrode erosion
and excessive carbon or other deposits, and
replace it if necessary.
To install the spark plug
1. Measure the spark plug gap with a wire thick-
ness gauge and, if necessary, adjust the gap
to specification.
2. Clean the surface of the spark plug gasket
and its mating surface, and then wipe off any
grime from the spark plug threads.
3. Install the spark plug with the spark plug
wrench, and then tighten it to the specified
torque. Specified spark plug:
NGK/DPR8EA-9
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
1. Spark plug gapTightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.7 ft·lbf)
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