2005 YAMAHA TRICKER 250 engine

OPERATION AND IMPORTANT RIDING POINTS
5-4
1
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6
7
8
9the oil filter cartridge or element re-

placed.
1600 km (1000 mi) and beyond
The vehicle can now be operated nor-
mally.
CAUTION:

ECA10270
If any engine trouble should occur
during the engine break-in period,
immediately have a Yamaha dealer
check the vehicle.
EAU17170
Parking
When parking, stop the engine, remove
the key from the main switch, and then
turn the fuel cock lever to “OFF”.
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.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-3
2
3
4
5
67
8
9

10

*
Tires

Check tread depth and for damage.

Replace if necessary.

Check air pressure.

Correct if necessary.
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11

*
Wheel bearings

Check bearing for looseness or damage.
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12

*
Swingarm

Check operation and for excessive play.
√√√√

Lubricate with molybdenum disulfide grease. Every 50000 km
13

Drive chain

Check chain slack, alignment and condition.

Adjust and lubricate chain with a special O-ring chain
lubricant thoroughly.Every 500 km and after washing the motorcycle or
riding in the rain
14

*
Steering bearings

Check bearing play and steering for roughness.
√√√√√

Lubricate with lithium-soap-based grease. Every 50000 km
15

*
Chassis fasteners

Make sure that all nuts, bolts and screws are properly
tightened.
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16

Sidestand

Check operation.

Lubricate.
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17

*
Sidestand switch

Check operation.
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18

*
Front fork

Check operation and for oil leakage.
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19

*
Shock absorber assem-
bly

Check operation and shock absorber for oil leakage.
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20

*
Rear suspension relay
arm and connecting arm
pivoting points

Check operation.
√√√√

Lubricate with molybdenum disulfide grease.
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21

*
Carburetor

Check starter (choke) operation.

Adjust engine idling speed.
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22

Engine oil

Change.

Check oil level and vehicle for oil leakage.
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23

Engine oil filter element

Replace.
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NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (
×
1000 km)
ANNUAL
CHECK
1 10203040

PERIODIC MAINTENANCE AND MINOR REPAIR
6-6
1
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To install the panel
Place the panel in the original position,
and then install the washer and bolt.
Panels C and F
To remove one of the panels1. To remove panel C, first remove
panel B, and to remove panel F,first remove panel E.
2. Remove panel C or F by pulling it
off as shown.
To install the panel
1. Place the panel in the original po-
sition.
2. Install panel B or E.

EAU19602
Checking 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 accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plug can re-
veal the condition of the engine.
To remove the spark plug
1. Remove the spark plug cap.
2. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner’s tool kit.
1. Bolt
2. Washer
1
2

1. Spark plug cap
1

PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
2
3
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5
67
8
9 To check the spark plug
1. Check that the porcelain insulator
around the center electrode of the
spark plug is a medium-to-light tan
(the ideal color when the vehicle is
ridden normally).
NOTE:

If the spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the vehicle.
2. 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 thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
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 tight-en it to the specified torque.
NOTE:

If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible.
4. Install the spark plug cap.
1. Spark plug wrench
1

Specified spark plug:
NGK/DR7EA
1. Spark plug gap
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
1

Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.7 ft·lbf)

PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
1
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9

EAU37801
Engine oil and oil filter
element
The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter ele-
ment replaced at the intervals specified
in the General periodic maintenance
and lubrication chart.
To check the engine oil level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
NOTE:

Make sure that the vehicle is positioned
straight up when checking the oil level.
A slight tilt to the side can result in a
false reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil set-
tles, and then check the oil level
through the check window located
at the bottom-right side of the
crankcase.
NOTE:

The engine oil should be between the
minimum and maximum level marks.
4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
To change the engine oil (with or
without oil filter element replace-
ment)
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engineto collect the used oil.
3. Remove the engine oil filler bolt
and drain bolt to drain the oil from
the crankcase.
1. Maximum level mark
2. Minimum level mark
3. Engine oil level check window
1
2
3

1. Engine oil filler bolt
1

PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
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67
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9
NOTE:

Check the washer for damage and re-
place it if necessary.
4. Remove the oil filter element drainbolt to drain the oil from the oil filter
element.
NOTE:

Skip steps 5–7 if the oil filter element is
not being replaced.
5. Remove the oil filter element cover
by removing the bolts.6. Remove and replace the oil filter
element and O-rings.
NOTE:

Make sure that the O-rings are properly
seated.
1. Engine oil drain bolt
1. Engine oil drain bolt
2. Washer
1
2
1

1. Oil filter element drain bolt
1

1. Bolt
2. Oil filter element cover
1
2

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
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9
7. Install the oil filter element cover by
installing the bolts, then tightening
them to the specified torque.
8. Install the engine oil drain bolt, and
then tighten it to the specified
torque.
9. Install the oil filter element drain
bolt, and then tighten it to the spec-
ified torque.10. Add the specified amount of the
recommended engine oil, and then
install and tighten the oil filler bolt.
CAUTION:

ECA11620

In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” orhigher.

Make sure that no foreign mate-
rial enters the crankcase.
11. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
12. Turn the engine off, and then
check the oil level and correct it if
necessary.
1. Oil filter element
2. O-ring
Tightening torque:
Oil filter element cover bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
2
2

Tightening torques:
Engine oil drain bolt:
20 Nm (2.0 m·kgf, 14.5 ft·lbf)
Oil filter element drain bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Recommended oil:
See page 8-1.
Oil quantity:
Without oil filter element replace-
ment:
1.20 L (1.27 US qt) (1.06 Imp.qt)
With oil filter element replacement:
1.30 L (1.37 US qt) (1.14 Imp.qt)

PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
2
3
4
5
67
8
9

EAU37870
Replacing the air filter element
and cleaning the check hose
The air filter element should be re-
placed at the intervals specified in the
periodic maintenance and lubrication
chart. Replace the air filter element
more frequently if you are riding in un-
usually wet or dusty areas. In addition,
the air filter check hose must be fre-
quently checked and cleaned if neces-
sary.
To replace the air filter element
1. Remove the seat. (See page 3-8.)
2. Remove the air filter case cover by
removing the screws.3. Pull the air filter element out.
4. Insert a new air filter element into
the air filter case as shown.
CAUTION:

ECA10480

Make sure that the air filter ele-
ment is properly seated in the
air filter case.

The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
5. Install the air filter case cover by in-
stalling the screws.6. Install the seat.
To clean the air filter check hose
1. Remove panel C. (See page 6-5.)
2. Check the hose on the side of the
air filter case for accumulated dirt
or water.
3. If dirt or water is visible, remove
the hose, clean it, and then install
it.
4. Install the panel.

1. Screw
2. Air filter case cover
2
1

1. Air filter element
2. Air filter case
3. Slot1
2
3
1. Air filter check hose
1