Yamaha MZ175 User manual

LIT-19626-02-05
7VB-F8199-11
PRINTED IN CHINA
2013.11×1 !
(E)
MZ175
MZ200
MZ250
MZ300
MZ360
OWNER’S MANUAL
Read this manual carefully before operating this machine.
7VB-F8199-11_hyoshi.indd 1-2 2013/11/27 15:04:17

Read this manual carefully before operating this machine. This manual
should stay with this machine if it is sold.
7VB-F8199-11_hyoshi.indd 3-4 2013/11/27 15:04:17

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.
MZ175, MZ200, MZ250, MZ300, MZ360
OWNER’S MANUAL
© 2013 by Yamaha Motor Corporation, U.S.A.
1st Edition, November 2013
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, U.S.A.
is expressly prohibited.
Printed in China
P/N LIT-19626-02-05
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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 machine and this manual. If
there is any question concerning this
manual, please consult a Yamaha
dealer.
9 This manual should be considered a
permanent part of this machine and
should remain with this machine
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 ................................................. 5
DESCRIPTION ..................................... 13
CONTROL FUNCTION ........................ 15
Engine switch .................................... 15
Oil warning light (Red) ...................... 15
Fuel tank cap (For models
equipped with a Yamaha fuel tank) ... 16
Fuel cock lever .................................. 16
Recoil starter handle ......................... 16
Choke lever ....................................... 17
Throttle lever ..................................... 17
PREPARATION .................................... 18
Fuel (For models equipped with a
Yamaha fuel tank) ............................. 18
Engine oil .......................................... 20
Connecting the battery (For models
equipped with electric starter) ........... 21
PRE-OPERATION CHECK .................. 22
Pre-operation check .......................... 22
OPERATION ........................................ 23
Starting the engine ............................ 24
Stopping the engine .......................... 27
High altitude operation ..................... 29
PERIODIC MAINTENANCE ................ 30
Maintenance chart ............................ 30
Spark plug inspection ....................... 32
Carburetor adjustment ...................... 33
Engine oil replacement ..................... 33
Air filter .............................................. 35
Spark arrester ................................... 36
Fuel cock ........................................... 39
Fuel tank filter (For models
equipped with a Yamaha fuel tank) ... 40
Fuse replacement
(For electric starting model) .............. 40
STORAGE ............................................ 42
Drain the fuel ..................................... 42
Engine ............................................... 44
TROUBLESHOOTING ......................... 45
Engine won’t start ............................. 45
SPECIFICATIONS ................................ 51
Dimensions ....................................... 51
Engine ............................................... 52
CONSUMER INFORMATION .............. 55
Identification number records ............ 55
Machine identification ....................... 55
EXHAUST EMISSION CONTROL
SYSTEM AND COMPONENTS ........... 56
CONTENTS
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– 1 –
SAFETY INFORMATION
9 Do not allow children to operate the multi-purpose
engine.
Exhaust fumes are poisonous
9 Using a multi-purpose engine indoors CAN KILL
YOU IN MINUTES. Multi-purpose engine exhaust
contains carbon monoxide. This is a poison you
cannot see or smell.
9 NEVER use inside a home or garage, EVEN IF
doors and windows are open.
9 Only use OUTSIDE and far away from windows,
doors, and vents.
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.
7VB-F8199-11_E0.indd 1 2013/12/04 10:13:22

– 2 –
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 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.
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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– 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.
9 In order to prevent overheating, be sure the equip-
ment in which the multi-purpose engine is mount-
ed allows adequate ventilation, and keep the
equipment at least 1m (3 ft) from objects or other
equipment.
9 Avoid placing any flammable materials near the
exhaust outlet during operation.
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– 4 –
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– 5 –
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.
(without fuel tank model)
(MZ175)
1
2
4
2
3
1
This spark ignition system meets all re-
Ce système d’allumage respecte toutes
les exigences sur le matériel brouilleur du
Canada.
7CC-H2377-50
quirements of the Canadian Interference
Causing Equipment Regulations.
2 (with fuel tank model)
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– 6 –
4
3
7CN-F4162-50
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– 7 –
12
4
3
1 (with fuel tank model)
(without fuel tank model)
(MZ200)
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– 8 –
4
2
This spark ignition system meets all re-
Ce système d’allumage respecte toutes
les exigences sur le matériel brouilleur du
Canada.
7CC-H2377-50
quirements of the Canadian Interference
Causing Equipment Regulations.
3
7CN-F4162-50
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– 9 –
1
2
4
3
(MZ250, MZ300 (7VB))
1 (with fuel tank model)
(without fuel tank model)
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– 10 –
3
7CN-F4162-50
4
2
This spark ignition system meets all re-
Ce système d’allumage respecte toutes
les exigences sur le matériel brouilleur du
Canada.
7CC-H2377-50
quirements of the Canadian Interference
Causing Equipment Regulations.
7VB-F8199-11_E0.indd 10 2013/12/04 10:13:30

– 11 –
1
2
4
3
(without fuel tank model)
(MZ300 (7CS), MZ360)
1
This spark ignition system meets all re-
Ce système d’allumage respecte toutes
les exigences sur le matériel brouilleur du
Canada.
7CC-H2377-50
quirements of the Canadian Interference
Causing Equipment Regulations.
2 (with fuel tank model)
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– 12 –
4
3
7CN-F4162-50
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– 13 –
0
7
4
2
8
1
5
6
93
0
7
4
2
8
1
3
5
6
9
DESCRIPTION
(MZ175, MZ200, MZ360)
(MZ250, MZ300 (7VB))
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– 14 –
0
7
4
2
8
1
5
6
9q
w
3
1 Fuel tank cap (On models
equipped with a Yamaha fuel
tank)
2 Fuel tank (On models
equipped with a Yamaha 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 (On models
equipped with a Yamaha fuel
tank)
r
y
tw
q
e
(MZ300 (7CS))
7VB-F8199-11_E0.indd 14 2013/12/04 10:13:32

– 15 –
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
(Manual starting model)
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.
(Electric starting model)
If the engine stalls or does not start, turn the engine
switch to “6” (START). If the oil warning light comes
on, the engine oil is insufficient. Add oil and restart.
CONTROL FUNCTION
Engine switch
The engine switch controls the ignition system.
1 “ON”/“7” (ON)
Ignition circuit is switched on.
The engine can be started.
2 “OFF”/“5” (STOP)
Ignition circuit is switched off.
The engine will not run.
3 “6” (START)
Starting circuit is switched on.
The starter motor starts and the engine can be started.
After starting the engine, take your hand off the switch
immediately.
A Manual starting model
B Electric starting model
1
2
A
763-119
1
23
B
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