2007 YAMAHA RHINO 660 maintenance

8-23
EVU00701
Engine oil and oil filter cartridge
The engine oil level should be checked before
each operation. In addition, the oil must be
changed and the oil filter cartridge replaced at the
intervals specified in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the vehicle on a level surface.
2. Remove the console. (See page 8-21 for
console removal and installation proce-
dures.)
3. Check the engine oil level on a cold engine.NOTE:If the engine was started before checking the oil
level, be sure to warm up the engine sufficiently,
and then wait at least ten minutes until the oil set-
tles for an accurate reading.
EE.book Page 23 Friday, August 4, 2006 12:02 PM

8-71
NOTE:_ The air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the vehicle is operated in extremely dusty
areas. Each time air filter element maintenance is
performed, check the air inlet to the air filter case
for obstructions. Check the air filter element rubber
joint to the carburetor and manifold fittings for an
airtight seal. Tighten all fittings securely to avoid
the possibility of unfiltered air entering the engine. _CAUTION:_ Never operate the engine with the air filter ele-
ment removed. This will allow unfiltered air to
enter, causing rapid engine wear and possible
engine damage. Additionally, operation with-
out the air filter element will affect carburetor
jetting with subsequent poor performance and
possible engine overheating.
EE.book Page 71 Friday, August 4, 2006 12:02 PM

8-81
EVU00800
Carburetor adjustment
The carburetor is a vital part of the engine and re-
quires very sophisticated adjustment. Most adjust-
ing should be left to a Yamaha dealer who has the
professional knowledge and experience to do so.
However, the idling speed may be performed by
the owner as a part of the usual maintenance rou-
tine.CAUTION:_ The carburetor was set at the Yamaha factory
after many tests. If the settings are disturbed
by someone without sufficient technical
knowledge, poor engine performance and
damage may result. _
EE.book Page 81 Friday, August 4, 2006 12:02 PM

8-93

Brake fluid may deteriorate painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately.


Have a Yamaha dealer inspect the brake sys-
tem if the brake fluid level goes down.
EVU00860
Brake fluid replacement
Complete fluid replacement should be done only
by trained Yamaha service personnel. Have a
Yamaha dealer replace the following components
during periodic maintenance or when they are
damaged or leaking.

Replace the oil seals every two years.


Replace the brake hoses every four years.
EE.book Page 93 Friday, August 4, 2006 12:02 PM

8-95 1. Brake pedal
1. Pédale de frein
1. Pedal de freno
EVU01480
Checking the brake pedal
Have a Yamaha dealer check the brakes at the in-
tervals specified in the periodic maintenance and
lubrication chart. There should be no free play in
the brake pedal. The brakes should operate
smoothly and there should be no brake drag. If the
brakes feel soft or spongy, this could indicate air in
the brake system. Have a Yamaha dealer check
the brake system if necessary.
WARNING
Operating with improperly serviced or adjust-
ed brakes could cause loss of braking ability,
which could lead to an accident.
After servicing:

Make sure the brakes operate smoothly
and that the brake pedal position is cor-
rect.


Make sure the brakes do not drag.


All air must be bled from the brake system.
Replacement of brake components requires
professional knowledge. These procedures
should be performed by a Yamaha dealer.
EE.book Page 95 Friday, August 4, 2006 12:02 PM

8-115 1. Negative battery lead 2. Positive battery lead
1. Câble négatif de batterie 2. Câble positif de batterie
1. Cable negativo de la batería 2. Cable positivo de la batería
EVU00960
Battery maintenance
1. When the vehicle is not used for a month or
longer, remove the battery and store it in a
cool, dark place. Completely recharge the
battery before reinstallation.CAUTION:_ A special battery charger (constant voltage/
ampere or constant voltage) is required for re-
charging a sealed-type battery. Using a con-
ventional battery charger may shorten the
battery life. _2. Always make sure the connections are cor-
rect when putting the battery back in the vehi-
cle.
EE.book Page 115 Friday, August 4, 2006 12:02 PM