2007 YAMAHA BLASTER 200 check engine

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16
*
Shock absorber
assemblies

Check operation and correct if necessary.

Check for oil leakage and replace if necessary.
√√√
17
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Steering shaft


Lubricate with lithium-soap-based grease.
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18
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Steering system


Check operation and repair or replace if damaged.

Check toe-in and adjust if necessary.
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19
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Carburetor


Check starter (choke) operation and correct if nec-
essary.

Check engine idling speed and adjust if neces-
sary.
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20
*
Crankcase breather
system

Check breather hose for cracks or other damage,
and replace if necessary.
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21 Transmission oil

Change.

Check ATV for oil leakage, and correct if neces-
sary.
√ √√√
22
*
Autolube pump


Check operation and bleed if necessary.
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23
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Moving parts and
cables


Lubricate.
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24
*
Throttle lever hous-
ing and cable


Check operation and correct if necessary.

Check throttle cable free play and adjust if neces-
sary.

Lubricate throttle lever housing and cable.
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25
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Exhaust system


Check for leakage and replace gasket(s) if neces-
sary.

Check for looseness and tighten all screw clamps
and joints if necessary.
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NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth 1 3 6 6 12
km
(mi)320
(200)1200
(750)2400
(1500)2400
(1500)4800
(3000)
hours 20 75 150 150 300

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EBU23211
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 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 the spark plug cap.
2. Remove the spark plug as shown, with thespark 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

1. Spark plug wrench
1

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To check the transmission oil level
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Wait a few minutes until the oil settles, and
then check the oil level through the check win-
dow located at the right side of the crankcase.NOTE:

The transmission oil should be between the mini-
mum and maximum level marks.
4. If the oil is at or below the minimum level mark,
remove the oil filler cap, add sufficient oil of
the recommended type to raise it to the cor-
rect level, and then install and tighten the oil
filler cap.
To change the transmission oil
1. Place the ATV on a level surface.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
1. Transmission oil level check window
2. Maximum level mark
3. Minimum level mark
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32

1. Transmission oil filler cap
1

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3. Place an oil pan under the transmission to col-
lect the used oil.
4. Remove the oil filler cap and the drain bolt to
drain the oil from the transmission.
5. Install the drain bolt, and then tighten it to the
specified torque.
6. Add the specified amount of the recommend-
ed transmission oil, and then install and tight-en the oil filler cap.CAUTION:
ECB00430

In order to prevent clutch slippage (since the
transmission oil also lubricates the clutch),
do not mix any chemical additives. Do not
use oils with a diesel specification of “CD” or
oils of a higher quality than specified. In ad-
dition, do not use oils labeled “ENERGY
CONSERVING II” or higher.

Make sure that no foreign material enters the
crankcase.
7. Start the engine, and then let it idle for several
minutes while checking the transmission for
oil leakage. If oil is leaking, immediately turn
off the engine and check for the cause.
8. Turn the engine off, and then check the oil lev-
el and correct it if necessary.
1. Transmission oil drain bolt
Tightening torque:
Transmission oil drain bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
1

Recommended transmission oil:
See page 10-1.
Oil quantity:
0.6 L (0.69 US qt) (0.57 Imp.qt)

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EBU23360
Autolube pump
The Autolube pump is a vital part of the engine and
requires very sophisticated adjustment. The Autol-
ube pump should be checked and, if necessary,
adjusted at the intervals specified in the periodic
maintenance and lubrication chart. Any adjusting
should be left to a Yamaha dealer who has the pro-
fessional knowledge and experience to do so.
EBU23781
Cleaning the air filter element
The air filter element should be cleaned at the in-
tervals specified in the periodic maintenance and
lubrication chart. Clean the air filter element more
frequently if you are riding in unusually wet or dusty
areas.
NOTE:

There is a check hose at the bottom of the air filter
case. If dust or water collects in this hose, empty
the hose and clean the air filter element and air fil-
ter case.1. Remove the seat. (See page 4-11.)
2. Remove the air filter case cover by removing
the screws.
1. Air filter case check hose
1

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13. Install the air filter case cover by installing the
screws.
14. Install the seat.
NOTE:

The air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the ATV is operated in extremely dusty ar-
eas. Each time the air filter element maintenance
is performed, check the air inlet of the air filter case
for obstructions. Check the air filter case rubber
joint to the carburetor fittings and the rubber joint
manifold fittings for an air-tight seal. Tighten all fit-tings securely to avoid the possibility of unfiltered
air entering the engine.
CAUTION:

ECB00460

Make sure that the air filter element is prop-
erly seated in the air filter case.

Never operate the engine with the air filter el-
ement removed. This will allow unfiltered air
to enter the engine, causing rapid engine
wear and possible engine damage. Addition-
ally, operation without the air filter element
will affect carburetor jetting with subsequent
poor performance and possible engine over-
heating.
EBU28310
Cleaning the spark arrester
Be sure the exhaust pipe and muffler are cool be-
fore cleaning the spark arrester.
1. Remove the screws.
1. Washer
1

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touching exhaust components.
EBU23971
Changing the carburetor settings
In extremely cold weather, it is necessary to
change the carburetor settings to maintain opti-
mum engine performance and to prevent engine
damage.
WARNING

EWB02000

Improperly servicing or adjusting the carbu-
retor could cause it to malfunction with the
possibility of an accident, or the carburetor
could leak fuel, which would be a fire hazard.

Carburetor adjustments should only be per-
formed by a Yamaha dealer. Do not attempt
to perform these procedures unless you
have mechanical knowledge and the neces-
sary tools.

Do not perform this procedure while the en-
gine is hot. Place a rag under the carburetor
to catch any fuel. Wipe up any spilled fuel
completely.

After servicing the carburetor, always check
the throttle lever operation before operating
the ATV to make sure it is working correctly.
Standard settings

Main jet #230
Jet needle clip position 2nd groove
Pilot air screw 1 1/2 turns out
1. Main jet number
1

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7. Install the carburetor and tighten the clamp
screws.
8. Connect the fuel hose and the oil hose.
9. Tighten the carburetor float bowl drain screw.
EBU24000
Adjusting the engine idling speed
The engine idling speed must be checked and, if
necessary, adjusted as follows at the intervals
specified in the periodic maintenance and lubrica-
tion chart.
NOTE:

A diagnostic tachometer is needed to make this
adjustment.
1. Start the engine and warm it up.
NOTE:

The engine is warm when it quickly responds to the
throttle.
2. Attach the tachometer to the spark plug lead.
3. Check the engine idling speed and, if neces-
sary, adjust it to specification by turning the
throttle stop screw at the carburetor. To in-
crease the engine idling speed, turn the throt-
tle stop screw in direction (a), and to decrease
it, turn the screw in direction (b).
1. Screw
2. Projection
3. Slot
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