Yamaha MZ250 User manual

E
ID
V
TH
I
P
ES
7KB-F8199-U0
MZ250
取扱説明書
用户手册
사용자매뉴얼
BUKU PETUNJUK PENGGUNAAN
J
K
7KB-F8199-U0
MZ250
OWNER’S MANUAL
MANUEL D’UTILISATION
BEDIENUNGSANLEITUNG
MANUALE PER IL PROPRIETARIO
MANUAL DO PROPRIETÁRIO
MANUAL DEL PROPIETARIO
F
D
Read this manual carefully before operating this machine.
Il convient de lire attentivement ce manuel avant la première utilisation de la machine.
Bitte lesen Sie diese Bedienungsanleitung sorgfältig durch, bevor Sie die Maschine in Betrieb neh-
men.
Leggere attentamente questo manuale prima di utilizzare questa macchina.
Leia este manual cuidadosamente antes de conduzir a máquina.
Lea este manual atentamente antes de utilizar este equipo.
本機のご使用前に、必ず本書をお読みください。
操作该机器前，请仔细阅读本手册。
본 매뉴얼을 숙독하신 후 기계를 작동하시기 바랍니다 .
Baca buku petunjuk ini secara teliti sebelum mengoperasikan mesin.
7KB-F-U0_hyoshi.indd 1 2012/08/24 18:50:58

7KB-F-U0_hyoshi.indd 2 2012/08/24 18:50:58

7KB-F8199-U0-E0
MZ250
OWNER’S MANUAL
Read this manual carefully before operating this machine.
7KB-F-U0_E0.indd 1 2012/08/24 18:39:38

Read this manual carefully before operating this machine. This manual
should stay with this machine if it is sold.
7KB-F-U0_E0.indd 2 2012/08/24 18:39:38

INTRODUCTION
Congratulations on your purchase of your new Yamaha.
This manual will provide you with a good basic understanding of the operation and
maintenance of this machine.
If you have any questions regarding the operation or maintenance of your machine,
please consult a Yamaha dealer.
MZ250
OWNER’S MANUAL
© 2012 by Yamaha Motor Powered
Products Co.,Ltd.
1st Edition, August 2012
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Powered
Products Co.,Ltd.
is expressly prohibited.
Printed in China
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Particularly important information is distin-
guished in this manual by the following
notations.
This is the safety alert symbol. It is
used to alert you to potential personal
injury hazards. Obey all safety mes-
sages that follow this symbol to avoid
possible injury or death.
WARNING
A WARNING indicates a hazardous sit-
uation which, if not avoided, could
result in death or serious injury.
NOTICE
A NOTICE indicates special precau-
tions that must be taken to avoid dam-
age to the machine or other property.
TIP
A TIP provides key information to make
procedures easier or clearer.
WARNING
PLEASE READ AND UNDERSTAND
THIS MANUAL COMPLETELY BEFORE
OPERATING THE MACHINE.
TIP
9 Yamaha continually seeks advance-
ments in product design and quality.
Therefore, while this manual contains
the most current product information
available at the time of printing, there
may be minor discrepancies between
your engine and this manual. If there
is any question concerning this man-
ual, please consult a Yamaha dealer.
9 This manual should be considered a
permanent part of this engine and
should remain with this engine when
resold.
* Product and specifications are subject to
change without notice.
IMPORTANT MANUAL INFORMATION
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SAFETY INFORMATION ....................... 1
Exhaust fumes are poisonous ............ 1
Fuel is highly flammable and
poisonous ............................................ 1
Engine and muffler may be hot ........... 2
Electric shock prevention .................... 3
LOCATION OF IMPORTANT
LABELS ................................................. 4
DESCRIPTION ....................................... 5
CONTROL FUNCTION .......................... 6
Engine switch ...................................... 6
Oil warning light (red) .......................... 6
Fuel tank cap ...................................... 6
Fuel cock lever .................................... 7
Recoil starter handle ........................... 7
Choke lever ......................................... 7
Throttle lever ....................................... 8
PREPARATION ...................................... 9
Fuel ..................................................... 9
Engine oil .......................................... 10
PRE-OPERATION CHECK .................. 11
Pre-operation check .......................... 11
OPERATION ........................................ 12
Starting the engine ............................ 12
Stopping the engine .......................... 14
PERIODIC MAINTENANCE ................ 15
Maintenance chart ............................ 15
Spark plug inspection ....................... 17
Carburetor adjustment ...................... 18
Engine oil replacement ..................... 18
Air filter .............................................. 20
Spark arrester ................................... 21
Fuel cock ........................................... 23
Fuel tank filter ................................... 24
STORAGE ............................................ 25
Drain the fuel ..................................... 25
Engine ............................................... 27
TROUBLESHOOTING ......................... 28
Engine won’t start ............................. 28
SPECIFICATIONS ................................ 30
Dimensions ....................................... 30
Engine ............................................... 30
CONSUMER INFORMATION .............. 31
Identification number records ............ 31
Machine identification ....................... 31
CONTENTS
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– 1 –
SAFETY INFORMATION
9 Do not allow children to operate the multi-purpose
engine.
Exhaust fumes are poisonous
9 Never operate the engine in a closed area or it
may cause unconsciousness and death within a
short time. Operate the engine in a well ventilated
area.
9 Do not place any obstacles on the multi-purpose
engine.
Fuel is highly flammable and poisonous
9 Always turn off the engine when refuelling.
9 Never refuel while smoking or in the vicinity of an
open flame.
9 Take care not to spill any fuel on the engine or
muffler when refueling.
9 Do not leave the multi-purpose engine inside the
vehicle or in the trunk.
9 If you swallow any fuel, inhale fuel vapor, or allow
any to get in your eye(s), see your doctor immedi-
ately. If any fuel spills on your skin or clothing,
immediately wash with soap and water and
change your clothes.
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– 2 –
a
9 Keep the machine at least 1 m (3 ft) from build-
ings or other equipment, or the engine may over-
heat.
a 1 m (3 ft)
Engine and muffler may be hot
9 Place the machine in a place where pedestrians
or children are not likely to touch the machine.
9 Avoid placing any flammable materials near the
exhaust outlet during operation.
9 When operating or transporting the machine, be
sure it is kept upright. If it tilts, fuel may leak from
the carburetor or fuel tank.
9 When refueling, do not place the fuel tank cap
near the muffler.
9 Take care not to spill fuel.
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– 3 –
Electric shock prevention
9 Never operate the engine in rain or snow.
9 Never touch the machine with wet hands or elec-
trical shock will occur.
9 Do not operate the engine with a dust cover or
other objects covering it.
9 When covering the multi-purpose engine, be sure
to do so only after the engine and muffler have
completely cooled down.
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– 4 –
LOCATION OF IMPORTANT LABELS
Please read the following labels carefully before oper-
ating this machine.
TIP
Maintain or replace safety and instruction labels, as
necessary.
1
7CN-F4162-40
1
2
2
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– 5 –
0
7
4
2
9
8
1
3
5
6
DESCRIPTION
1 Fuel tank cap
2 Fuel tank
3 Throttle lever
4 Recoil starter handle
5 Fuel cock lever
6 Fuel cock cup
7 Air filter case cover
8 Choke lever
9 Spark plug
0 Muffler
q Oil warning light (red)
w Engine switch
e Oil filler cap
r Oil drain bolt
t Carburetor
y Fuel tank filter
r
y
tw
q
e
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– 6 –
1
2
Oil warning light (red)
When the oil level falls below the lower level, the oil
warning light comes on and then the engine stops
automatically. Unless you refill with oil, the engine will
not start again.
TIP
If the engine stalls or does not start, turn the engine
switch to “ON” and then pull the recoil starter. If the oil
warning light flickers for a few seconds, the engine oil
is insufficient. Add oil and restart.
CONTROL FUNCTION
Engine switch
The engine switch controls the ignition system.
1 “ON”
Ignition circuit is switched on.
The engine can be started.
2 “OFF”
Ignition circuit is switched off.
The engine will not run.
Fuel tank cap
Remove the fuel tank cap by turning it counterclock-
wise.
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– 7 –
7DF-106
1
2
2
1
1
Fuel cock lever
The fuel cock supplies fuel from the fuel tank to the
carburetor.
The fuel cock has two positions.
1 ON
With the lever in this position, fuel flows to the carbu-
retor. Normal using is done with the lever in this posi-
tion.
2 OFF
With the lever in this position, fuel will not flow. Always
turn the lever to this position when the engine is not
running.
Recoil starter handle
Used to start the engine.
1 Recoil starter handle
NOTICE
9 Pull the recoil starter handle straight.
9 Return the recoil starter handle slowly.
9 Do not touch the recoil starter handle while
the multi-purpose engine is operating.
TIP
Pull the recoil starter handle after turning the engine
switch to “ON”.
Choke lever
Starting a cold engine requires a richer air-fuel mix-
ture, which is supplied by the choke lever.
1 Choke lever
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– 8 –
1 2
Throttle lever
Throttle lever controls the engine speed.
1 “ ”
Lever position to idle the engine.
Decrease engine speed.
2 “ ”
Increase engine speed.
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– 9 –
21
PREPARATION
Fuel
WARNING
9 Fuel is highly flammable and poisonous.
Check “SAFETY INFORMATION” (See page 1)
carefully before filling.
9 Do not overfill the fuel tank, otherwise it may
overflow when the fuel warms up and expands.
9 After fill the fuel, make sure the fuel tank cap
is tightened securely.
1. Stop the engine.
2. Place the engine on a level surface.
3. Remove the fuel tank cap.
4. Check the fuel level.
5. If low, fill the tank with fuel.
NOTICE
9 Immediately wipe off spilled fuel with a clean,
dry, soft cloth, since fuel may deteriorate
painted surfaces or plastic parts.
9 Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts.
Make sure there is sufficient fuel in the tank.
When refueling, be sure to fill the tank to the bottom
edge of the fuel tank filter.
1 Fuel level
2 Fuel tank filter
Recommended fuel:
Unleaded gasoline
Fuel tank capacity:
Total:
5.8 L (1.53 US gal, 1.28 Imp gal)
7KB-F-U0_E0.indd 9 2012/08/24 18:39:59

– 10 –
2
Engine oil
NOTICE
The multi-purpose engine has been shipped with-
out engine oil. Do not start the engine until you
have filled it with the sufficient engine oil.
1. Place the multi-purpose engine on a level surface.
2. Remove the oil filler cap.
1 Oil filler cap
3. Fill the specified amount of the recommended
engine oil.
4. Check the oil level of the oil filler hole.
2 Correct level
5. Install the oil filler cap.
1
0˚C
A YAMALUBE 4 (10W-40)
D SAE 10W C SAE #20 B SAE #30
32˚F
25˚C
80˚F
Recommended engine oil:
A YAMALUBE 4 (10W-40),
SAE 10W-30 or 10W-40
B SAE #30
C SAE #20
D SAE 10W
Recommended engine oil grade:
API Service SE type or higher
Engine oil quantity:
1.0 L (1.06 US qt, 0.88 Imp qt)
7KB-F-U0_E0.indd 10 2012/08/24 18:40:01

– 11 –
PRE-OPERATION CHECK
WARNING
If any item in the Pre-operation check is not work-
ing properly, have it inspected and repaired before
operating the multi-purpose engine.
The condition of a multi-purpose engine is the owner’s
responsibility. Vital components can start to deteriorate
quickly and unexpectedly, even if the multi-purpose
engine is unused.
TIP
Pre-operation checks should be made each time the
multi-purpose engine is used.
Pre-operation check
Fuel (See page 9)
9 Check fuel level in fuel tank.
9 Refuel if necessary.
Fuel line
9 Check fuel hose for cracks or damage.
9 Replace if necessary.
Engine oil (See page 10)
9 Check oil level in engine.
9 If necessary, add recommended oil to specified
level.
9 Check multi-purpose engine for oil leakage.
The point where abnormality was recognized by
use
9 Check operation.
9 If necessary, consult a Yamaha dealer.
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– 12 –
OPERATION
WARNING
Never operate the engine in a closed area or it
may cause unconsciousness and death within a
short time. Operate the engine in a well ventilated
area.
NOTICE
The multi-purpose engine has been shipped with-
out engine oil. Do not start the engine until you
have filled it with the sufficient engine oil.
705-037
1
2
Starting the engine
1. Turn the fuel cock lever to ON.
1 ON
2. Pull the choke lever fully out.
2 Choke lever
TIP
The choke is not required to start a warm engine.
Push the choke lever to the original position.
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– 13 –
3
3. Move the throttle lever slightly to “ ”.
4. Turn the engine switch to “ON”.
3 “ON”
6
5
4
6. After the engine starts, warm up the engine
enough so that the engine does not stop when the
choke lever is returned to the original position.
4 Original position
7. Set the throttle lever in desired position.
5 “ ”: Decrease engine speed
6 “ ”: Increase engine speed
5. Pull the recoil starter slowly until it is engaged,
then pull it briskly.
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