Yamaha YS1070T User manual

Printed in Japan
2020.05-0.1×1 !
(E, F, G, H, N, M, L)
Original instructions
Notice originale
Originalbetriebsanleitung
Istruzioni originali
Opprinnelige instruksjoner
Bruksanvisning i original
Alkuperäiset ohjeet
YS1070T
EOWNER’S MANUAL
FMANUEL DU PROPRIÉTAIRE
DBEDIENUNGSANLEITUNG
IUSO E MANUTENZIONE
NEIERHÅNDBOK
SINSTRUKTIONSBOK
SF OMISTAJAN KÄSIKIRJA
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 nehmen.
Leggere attentamente questo manuale
prima di utilizzare questa macchina.
Les denne håndboken nøye før du tar
maskinen i bruk.
Läs den här instruktionsboken noga
innan maskinen används.
Lue tämä käsikirja huolellisesti ennen
koneen käyttöä.
7XE-28199-U6
7XE-28199-U6_cover_24mm.indd 1-3 2020/05/11 15:41:44

7XE-28199-U6_cover_24mm.indd 4-6 2020/05/11 15:41:44

Read this manual carefully before
operating this machine.
OWNER’S MANUAL
YS1070T
7XE-28199-U6-E0
7XE-28199-U6-E0.book 1 ページ ２０２０年５月１日 金曜日 午後３時４３分

Read this manual carefully
Read this manual carefully before operating this machine. This manual should
stay with this machine if it is sold.
EC Declaration of Conformity
We YAMAHA MOTOR POWERED PRODUCTS CO., LTD.
242-2 Sakagawa, Kakegawa, Shizuoka, Japan
declare in sole responsibility, that the products ENGINE DRIVEN SNOW THROWER SET
YT660E (7T0-3300101−), YS1070TE (7XE-6300143−), YT1070E (7RW-5700740−)
to which this declaration applies, conform to the essential health and safety requirements of Directive 2006/42/EC, and to the other relevant
Directives of EC.
2006/42/EC, 2014/30/EU, 2000/14/EC, Amd. 2005/88/EC, 2011/65/EU
E
Outer noise Directive
Measured sound power dB(A) : 97 (7T03), 96 (7XE6), 100 (7RW5)
Guaranteed sound power dB(A) : 99 (7T03), 98 (7XE6), 102 (7RW5)
Noise parameter (kW/min-1) : 3.5/3800 (7T03), 7.1/3800 (7XE6), 7.1/3800 (7RW5)
Authorized Representative
YAMAHA MOTOR EUROPE N.V.
Koolhovenlaan 101,1119NC Schiphol-Rijk, The Netherlands
242-2 Sakagawa, Kakegawa, Shizuoka, Japan
General Manager Engineering Div. Power Products Operations
Date of Issue 29, April, 2020 Ryuta Inoue
7XE-28199-U6-E0.book 1 ページ ２０２０年５月１日 金曜日 午後３時４３分

Introduction
Congratulations on your purchase of your new Yamaha.
This manual will provide you with a good basic understanding of the operation and main-
tenance of this machine.
If you have any questions regarding the operation or maintenance of your machine,
please consult a Yamaha dealer.
TIP
• Some illustrations and text shown in this manual may differ from the actual model due
to changes in specifications or other reasons.
• Take care of this manual. Please attach this manual to the product when it is lent or
transferred to another person.
• When depositing the product, batteries, oil or other components, consult a Yamaha
dealer for guidelines on protecting the environment.
• All Yamaha products have warranty cards.
Read the warranty card carefully, check to see that the dealer name is sealed on its
rear side, and keep the card in a safe place.
* Product and specifications are subject to change without notice.
PLEASE READ AND UNDERSTAND THIS MANUAL COMPLETELY BEFORE OPER-
ATING THE MACHINE.
WARNING
Copyright
YS1070T
OWNER’S MANUAL
©2020 by Yamaha Motor Powered
Products Co., Ltd.
1st Edition, April 2020
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Powered
Products Co., Ltd.
is expressly prohibited.
Printed in Japan
7XE-28199-U6-E0.book 1 ページ ２０２０年５月１日 金曜日 午後３時４３分

Important manual information
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury
or death.
A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
A NOTICE indicates special precautions that must be taken to avoid damage to the
machine or other property.
A TIP provides key information to make procedures easier or clearer.
If you have any questions, please consult a Yamaha dealer immediately.
Yamaha dealer is looking forward to serving you as a helpful adviser.
WARNING
NOTICE
TIP
7XE-28199-U6-E0.book 2 ページ ２０２０年５月１日 金曜日 午後３時４３分

Contents
Safety information ................. 1-1
General safety information ............... 1-1
Location of important labels ............. 1-6
Symbol meaning .............................. 1-8
Controls and features ........... 2-1
Description ....................................... 2-1
Control function ................................ 2-5
Engine switch................................ 2-5
Oil level warning light.................... 2-6
Throttle lever................................. 2-6
Shift lever...................................... 2-6
Chute direction control lever ......... 2-7
Chute deflector control lever......... 2-7
Drive clutch lever .......................... 2-8
Turning switch............................... 2-8
Auger clutch lever ......................... 2-8
Auger housing height control 
lever .............................................. 2-9
Fuel tank cap ................................ 2-9
Fuel gauge.................................... 2-9
Fuel cock .................................... 2-10
Skid............................................. 2-10
Scraper ....................................... 2-11
Shear bolt guard ......................... 2-11
Clean-out tool (Lodged snow 
remover) ..................................... 2-12
Working light ............................... 2-13
Before operation.................... 3-1
Pre-operation check ......................... 3-1
Checking the fuel level.................. 3-2
Checking the engine oil ................ 3-4
Checking the transmission 
(HST) oil........................................ 3-5
Checking the auger....................... 3-6
Checking the handlebar for 
looseness or play.......................... 3-6
Checking the starter motor 
operation....................................... 3-6
Checking the engine for poor 
starting or abnormal noise ............ 3-6
Checking the exhaust system....... 3-6
Checking the auger clutch and 
drive clutch for operation 
malfunction ................................... 3-7
Checking the chute operation....... 3-7
Checking any troubles noticed 
when previously operating the
snowblower................................... 3-7
Operation................................ 4-1
Starting the engine........................... 4-1
Stopping the engine ......................... 4-3
Moving the snowblower ................... 4-3
Changing the direction of travel ....... 4-5
Clearing snow .................................. 4-5
Operation of drive clutch lever and 
auger clutch lever............................. 4-8
Stopping clearing snow.................... 4-9
Moving the snowblower with the 
engine stopped .............................. 4-10
Periodic maintenance ........... 5-1
The importance of maintenance ...... 5-1
Tool kit ............................................. 5-1
Check before use............................. 5-1
Periodic inspection........................... 5-1
Maintenance chart ........................... 5-2
Changing the engine oil ................... 5-5
Refilling the transmission (HST) 
oil ..................................................... 5-7
Changing the worm case oil............. 5-8
Checking and cleaning the spark 
plug .................................................. 5-8
Cleaning the fuel strainer ............... 5-11
Adjusting the skids ......................... 5-12
Replacing the auger shear bolts .... 5-14
Replacing the impeller shear bolt... 5-15
Adjusting the scraper ..................... 5-16
Checking and adjusting the track 
tension ........................................... 5-17
Checking..................................... 5-17
7XE-28199-U6-E0.book 1 ページ ２０２０年５月１日 金曜日 午後３時４３分

Contents
Adjusting......................................5-18
Replacing the sprocket pin .............5-18
Checking the battery fluid ...............5-19
Replacing the fuse ..........................5-20
Lubricating each part ......................5-22
Storage................................... 6-1
Short-term.........................................6-1
Long-term .........................................6-5
Trouble recovery ................... 7-1
Troubleshooting ................................7-1
Specifications........................ 8-1
YS1070T...........................................8-1
Noise and vibration ...........................8-2
Consumer information.......... 9-1
Product serial number label ..............9-1
Index..................................... 10-1
7XE-28199-U6-E0.book 2 ページ ２０２０年５月１日 金曜日 午後３時４３分

1-1
1
2
3
4
5
6
7
8
9
10
11
12
Safety information
General safety information
• Read and understand this owner’s manual and labels
attached to the Snowblower completely before oper-
ating the Snowblower.
• Be sure to perform the pre-operation checks and
periodic maintenance.
• Do not allow children or anyone who does not under-
stand how to operate the Snowblower correctly to
operate it.
• Never operate the Snowblower when you are tired or
under the influence of alcohol or drugs.
• Wear non-slip footwear, warm clothing and gloves
when operating the Snowblower.
1
1. Owner’s manual
7XE-28199-U6-E0.book 1 ページ ２０２０年５月１日 金曜日 午後３時４３分

1-2
Safety information
• Do not operate the Snowblower in low visibility condi-
tions, such as early morning and night time.
• Do not start the engine with the guard or cover
removed.
• Check for foreign objects in rotating parts such as the
auger and impeller or in the chute before operating.
• Never start the engine indoors except when you are
moving the Snowblower. 
Exhaust fumes contain harmful chemicals such as
carbon monoxide. Open the doors and adequately
ventilate the building even when you are moving the
Snowblower.
• Gasoline is a highly flammable and easily ignitable
fuel. Always turn off the engine and avoid open flame
while filling the fuel tank.
3
2
1
1. Auger
2. Impeller
3. Chute
7XE-28199-U6-E0.book 2 ページ ２０２０年５月１日 金曜日 午後３時４３分

1-3
Safety information
• Remove wooden blocks, cans, hoses, wires, ropes
and all other foreign objects from the location you
wish to clear snow from before operating the Snow-
blower.
• To clear snow on gravel, make sure there is a clear-
ance between the auger housing and ground to pre-
vent gravel from being blown together with snow.
• Do not allow anyone except the operator of the
Snowblower near the place you wish to clear snow
from.
• Do not look in the rotating parts such as the auger
and impeller or in the chute or put your face, arms or
legs near such parts.
• Do not blow snow toward people, buildings, automo-
biles, etc.
1
2
1. Auger housing
2. Clearance
1
2
3
1. Auger
2. Impeller
3. Chute
7XE-28199-U6-E0.book 3 ページ ２０２０年５月１日 金曜日 午後３時４３分

1-4
Safety information
• Do not fix the auger clutch lever or drive clutch lever
intentionally as this will prevent the safety device to
operate.
• Do not blow snow across the face of a slope.
• Do not use the Snowblower to clear snow on a roof
or steep slope.
• If abnormal vibrations, noises or odors are noticed
coming from the Snowblower, stop the engine and
ask a Yamaha dealer to check and/or perform main-
tenance.
• When you park the Snowblower, stop it on a flat sur-
face and lower auger onto the ground. Then, place
shift lever in a position other than “N” (Neutral) to pre-
vent the Snowblower from moving easily and sud-
denly.
1
2
1. Auger
2. Shift lever
7XE-28199-U6-E0.book 4 ページ ２０２０年５月１日 金曜日 午後３時４３分

1-5
Safety information
• The muffler (exhaust pipe) will still be hot immedi-
ately after the engine has stopped. Place the Snow-
blower in a place where pedestrians are not likely to
touch the Snowblower.
• Do not use the Snowblower for purposes other than
clearing snow.
• To dislodge snow from the chute, stop the engine,
and use the clean-out tool.
• To attach a cover or similar device to the Snow-
blower, wait until the engine and muffler have com-
pletely cooled down.
1
1. Chute
7XE-28199-U6-E0.book 5 ページ ２０２０年５月１日 金曜日 午後３時４３分

1-6
Safety information
Location of important labels
To use the product safely, read the labels affixed to the machine, and use according to
the instructions on the labels.
TIP
If these important labels are damaged or missing, contact a Yamaha dealer for replace-
ments.
1 2 3 564
7
7XE-28199-U6-E0.book 6 ページ ２０２０年５月１日 金曜日 午後３時４３分

1-7
Safety information
12
3
5
67
4
7XE-28199-U6-E0.book 7 ページ ２０２０年５月１日 金曜日 午後３時４３分

1-8
Safety information
Symbol meaning
Please understand the following symbols before operating this machine.
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED!
Read the manual before operation.
• Gasoline is a highly flammable and easily ignitable fuel.
• Always turn off the engine and avoid open flame while filling the fuel
tank.
• Avoid touching hot surfaces such as the engine and muffler.
• The muffler (exhaust pipe) will still be hot immediately after the engine
has stopped.
Place the Snowblower in a place where pedestrians are not likely to
touch the Snowblower.
• Severe injury could occur if caught in the rotating parts of the chute.
• Do not look into or put hands in the chute while the engine is running.
• To dislodge snow from the chute, stop the engine, and use the clean-out
tool.
• Do not blow snow toward people, buildings, automobiles, etc.
• Object thrown from chute can cause injury or damage to the property.
• Do not allow anyone except the operator of the Snowblower near the
place you wish to clear snow from.
• Avoid injury from rotation auger-keep hands, feet, and clothing away.
• To dislodge snow from the auger and impeller, stop the engine, and use
the clean-out tool.
• Do not look into the rotating parts such as the auger and impeller, or put
your face, arms or legs near such parts.
7XE-28199-U6-E0.book 8 ページ ２０２０年５月１日 金曜日 午後３時４３分

2-1
1
2
3
4
5
6
7
8
9
10
11
12
Controls and features
Description
1 Fuel gauge 7 Left side cover
2 Fuel tank 8 Auger
3 Top cover 9 Impeller
4 Transmission (HST) oil reservoir 10 Auger housing
5 Muffler 11 Chute
6 Fuel cock
2
4
5
6
11
10
9
8
1
3
7
7XE-28199-U6-E0.book 1 ページ ２０２０年５月１日 金曜日 午後３時４３分

2-2
Controls and features
1 Working light 6 Track
2 Clean-out tool (lodged snow remover) 7 Battery
3 Right side cover 8 Control panel
4 Scraper 9 Handlebar
5 Skid 10 Fuel tank cap
1
109
3
6
7
8
2
5
4
7XE-28199-U6-E0.book 2 ページ ２０２０年５月１日 金曜日 午後３時４３分

2-3
Controls and features
1 Drive clutch lever 6 Throttle lever
2 Auger clutch lever 7 Oil level warning light
3 Shift lever 8 Turning switch
4 Chute direction control lever 9 Auger housing height control lever
5 Chute deflector control lever 10 Engine switch/Engine switch key
1 Fuel cock lever 6 “HOSE DRAIN”
2 “RUN” 7 Fuel tank
3 “STOP” 8 Fuel tank cap
4 Fuel cock 9 Fuel gauge
5 “CARBURETOR DRAIN”
34
5
2
1
6
7
9
8
10
RUN
S
T
O
P
H
O
S
E
CARBURETOR
D
R
A
I
N
4
5
3
78 9
1 2
6
7XE-28199-U6-E0.book 3 ページ ２０２０年５月１日 金曜日 午後３時４３分

2-4
Controls and features
Inside the right side cover
Inside the left side cover
1 Fuse 3 Engine oil filler cap
2 Electric starter 4 Engine oil drain bolt
1 Spark plug cap/Spark plug 4 Fuel drain hose
2 Carburetor 5 Fuel strainer cup
3 Air filter 6 Fuel cock lever
2
3
4
1
6
5
4
3
2
1
7XE-28199-U6-E0.book 4 ページ ２０２０年５月１日 金曜日 午後３時４３分