YAMAHA MAJESTY 400 2004 Service Manual
Manufacturer: YAMAHA, Model Year: 2004, Model line: MAJESTY 400, Model: YAMAHA MAJESTY 400 2004Pages: 92, PDF Size: 2.25 MB
Page 41 of 92
OPERATION AND IMPORTANT RIDING POINTS
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EAU16841
Engine break-in
There is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the follow-
ing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that might
result in engine overheating must be
avoided.
EAU34320
0–1000 km (0–600 mi)
Avoid prolonged operation above
4000 r/min.
1000–1600 km (600–1000 mi)
Avoid prolonged operation above
6000 r/min.
CAUTION:
ECA12930
After 1000 km (600 mi) of operation,
be sure to replace the engine oil, fi-nal transmission oil and the oil filter
element.
1600 km (1000 mi) and beyond
The vehicle can now be operated nor-
mally.
CAUTION:
ECA10310
Keep the engine speed out of
the tachometer red zone.
If any engine trouble should oc-
cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi-
cle.
EAU17211
Parking
When parking, stop the engine, and
then remove the key from the main
switch.
WARNING
EWA10310
Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
ans or children are not likely to
touch them.
Do not park on a slope or on soft
ground, otherwise the vehicle
may overturn.
CAUTION:
ECA10380
Never park in an area where there
are fire hazards such as grass or
other flammable materials.
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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU17280
Safety is an obligation of the owner. Pe-
riodic inspection, adjustment and lubri-
cation will keep your vehicle in the
safest and most efficient condition pos-
sible. The most important points of in-
spection, adjustment, and lubrication
are explained on the following pages.
The intervals given in the periodic
maintenance and lubrication chart
should be simply considered as a gen-
eral guide under normal riding condi-
tions. However, DEPENDING ON THE
WEATHER, TERRAIN, GEOGRAPHI-
CAL LOCATION, AND INDIVIDUAL
USE, THE MAINTENANCE INTER-
VALS MAY NEED TO BE SHORT-
ENED.
WARNING
EWA10320
If you are not familiar with mainte-
nance work, have a Yamaha dealer
do it for you.
WARNING
EWA10330
This scooter is designed for use on
paved roads only. If this scooter isoperated in abnormally dusty, mud-
dy or wet conditions, the air filter el-
ement should be cleaned or
replaced more frequently, otherwise
rapid engine wear may result. Con-
sult a Yamaha dealer for proper
maintenance intervals.
EAU17501
Owner’s tool kit
The owner’s tool kit is located inside the
rear storage compartment. (See
page 3-15.)
Pull up the storage compartment mat,
and then remove the owner’s tool kit.
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.
1. Storage compartment mat
2. Owner’s tool kit
1
2
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NOTE:
If you do not have the tools or experi-
ence required for a particular job, have
a Yamaha dealer perform it for you.
WARNING
EWA10350
Modifications not approved by
Yamaha may cause loss of perfor-
mance and render the vehicle un-
safe for use. Consult a Yamaha
dealer before attempting any chang-
es.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU17703
Periodic maintenance and lubrication chart
NOTE:
The annual checks must be performed every year, except if a kilometer-based maintenance is performed in-
stead.
From 50000 km, repeat the maintenance intervals starting from 10000 km.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical
skills.
NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (
×
1000 km)
ANNUAL
CHECK
1 10203040
1*
Fuel line
Check fuel hoses for cracks or damage.
√
√
√
√
√
2
Spark plug
Check condition.
Clean and regap.
√
√
Replace.
√
√
3*
Valves
Check valve clearance.
Adjust.Every 40000 km
4
Air filter elements
Replace.
√
√
5
V-belt case air filter ele-
ment
Clean.
√
√
√
√
6*
Front brake
Check operation, fluid level and vehicle for fluid leak-
age.
√
√
√
√
√
√
Replace brake pads. Whenever worn to the limit
7*
Rear brake
Check operation, fluid level and vehicle for fluid leak-
age.
√
√
√
√
√
√
Replace brake pads. Whenever worn to the limit
8
Rear brake lock
Check operation.
Adjust.
√
√
√
√
√
√
9*
Brake hoses
Check for cracks or damage.
√
√
√
√
√
Replace. Every 4 years
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PERIODIC MAINTENANCE AND MINOR REPAIR
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*
Wheels
Check runout and for damage.
√
√
√
√
11
*
Tires
Check tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.
√
√
√
√
√
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*
Wheel bearings
Check bearing for looseness or damage.
√
√
√
√
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*
Steering bearings
Check bearing play and steering for roughness.
√
√
√
√
√
Lubricate with lithium-soap-based grease. Every 20000 km
14
*
Chassis fasteners
Make sure that all nuts, bolts and screws are properly
tightened.
√
√
√
√
√
15
Sidestand, centerstand
Check operation.
Lubricate.
√
√
√
√
√
16
*
Sidestand switch
Check operation.
√
√
√
√
√
√
17
*
Front fork
Check operation and for oil leakage.
√
√
√
√
18
*
Shock absorber assem-
blies
Check operation and shock absorbers for oil leakage.
√
√
√
√
19
*
Electronic fuel injection
Adjust engine idling speed.
√
√
√
√
√
√
20
Engine oil
Change. (See pages 3-5 and 6-12.)
√
When the oil change indicator flashes (every
5000 km)
Check oil level and vehicle for oil leakage. Every 5000 km
√
21
Engine oil filter element
Replace.
√
√
√
22
*
Cooling system
Check coolant level and vehicle for coolant leakage.
√
√
√
√
√
Change. Every 3 years
23
Final transmission oil
Check vehicle for oil leakage.
√
√
√
Change.
√
√
√
√
√
√
24
*
V-belt
Replace. Every 20000 km
25
*Front and rear brake
switches
Check operation.√ √ √ √ √ √
26
Moving parts and cables
Lubricate.√ √ √ √ √ NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (× 1000 km)
ANNUAL
CHECK
1 10203040
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EAU34490
NOTE:
The air filters and V-belt filter need 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.
27
*
Throttle grip housing
and cable
Check operation and free play.
Adjust the throttle cable free play if necessary.
Lubricate the throttle grip housing and cable.
√
√
√
√
√
28
*
Lights, signals and
switches
Check operation.
Adjust headlight beam.
√
√
√
√
√
√
NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (
×
1000 km)
ANNUAL
CHECK
1 10203040
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EAU18711
Removing and installing
cowlings and panels
The cowlings and panels shown need
to be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each time
a cowling or panel needs to be re-
moved and installed.
EAU34281
Cowling A
To remove the cowling
1. Open the rider seat. (See
page 3-13.)
2. Remove the quick fasteners in the
rear storage compartment, and
then pull the cowling off as shown.NOTE:
The quick fastener is removed by push-
ing the center pin in with a screwdriver,
and then pulling the fastener out.To install the cowling
1. Place the cowling in the original
position, and then install the quick
fasteners.NOTE:
To install the quick fastener, push the
center pin out so that it will protrude
from the fastener head, insert the fas-
tener into the cowling, and then push
the protruding pin in until it is flush with
the fastener head.
2. Close the rider seat.
Cowling B
To remove the cowling
1. Remove the screws.
1. Panel A
2. Cowling C
3. Cowling A
4. Cowling B
5. Panel B
6. Cowling E
2
3
4
5
6 1
1. Cowling D
1
1. Quick fastener
2. Cowling A
1
2
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2. Remove the cowling as shown.
To install the cowling
Place the cowling in the original posi-
tion, and then install the screws.
Cowlings C and D
To remove one of the cowlings
1. Remove cowlings A and B.
2. Remove the passenger seat. (See
page 3-13.)
3. Remove the grab bar by removing
the grab bar bolts and collars.
4. Remove the screw access cover
by pulling it off.5. Remove the screws, and then pull
the cowling off.
To install the cowling
1. Place the cowling in the original
position, and then install the
screws.
1. Cowling B
2. Screw
1. Cowling B
1
2
1
1. Grab bar bolt
2. Collar
3. Grab bar
1(×4)
3
1
2(×4)
2
1. Screw access cover
1. Screw
1
1
1
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2. Install the screw access cover by
placing it in its original position.
3. Install the grab bar by installing the
collars and grab bar bolts.
4. Install the passenger seat.
5. Install cowlings A and B.
Cowling E
To remove the cowling
1. Pull up the left floorboard mats as
shown.2. Remove the cowling screws.
3. Pull the cowling down slightly, and
then pull it outward as shown.To install the cowling
1. Insert the tabs on the cowling into
the slots as shown, and then install
the screws.
2. Place the left floorboard mats in
the original position.
Tightening torque:
Grab bar bolt:
23 Nm (2.3 m·kgf, 16.6 ft·lbf)
1. Left floorboard mat
1. Screw
1
1(×4)
1. Cowling E
1. Tab
1
1(×13)
1
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EAU34290
Panel A
To remove the panel
1. Remove the bolts.
2. Pull the panel out as shown.
To install the panelPlace the panel in the original position,and then install the bolts.
Panel B
To remove the panel
Remove the screws, and then pull the
panel outward.To install the panel
Place the panel in the original position,
and then install the screws.
1. Bolt
2. Panel A
2
1
1. Panel B
2. Screw
21
1. Screw
2. Panel B
12