bar 670 User manual

670
Gasoline Engine
Owner’s Manual

·1·
PREFACE
Thank you for choosing general gasoline engine of our company.
The manual gives information with respect to operation and maintenance
of 670 general gasoline engine, and be sure to read it carefully rst before
operation. Only operate as the manual tells, can insure user’s safety and
get the best results of the engine operation. If a problem should arise or if
you have any questions about your gasoline engine, consult an authorized
our company servicing dealer.
Vertical shaft gasoline engine series in this manual is mainly used in the
UTV, generator and high pressure washer.
All information and diagrams of this manual are in accordance with the
newest products at the publishing time. If revision and other change of
the information descried in this manual are a little different from the
actual status, our company will explain it. Our company reserves the right
to make change at any time without notice and without incurring any
obligation. No part of this publication may be reproduced without written
permission.
This manual should be considered a permanent part of the engine and
should remain with the engine if resold.

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SAFETY MESSAGES
Your safety and the safety of others are very important. We have provided
important safety messages in this manual and on the gasoline engine.
Please read these messages carefully.
A safety message alerts you to potential hazards that could hurt you or
others. Each safety message is preceded by a safety alert symbol
and one of three words: DANGER, WARNING, or CAUTION. These
mean:
You CAN be KILLED or SERIOUSLY HURT if you
don’t follow instructions.
You CAN be KILLED or SERIOUSLY HURT if you
don’t follow instructions.
You CAN be HURT if you don’t follow instructions.
Your engine or other property could be damaged if you
don’t follow instructions.

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CONTENTS
I. SAFETY PRECAUTIONS ………………………………………… 4
II . PARTS DESCRIPTION ………………………………………… 6
1)FEATURE ……………………………………………………… 6
2)MODEL & SERIES NO………………………………………… 7
III.PRE-OPERATEINSPECTION ……………………………………… 8
1) ENGINEOIL …………………………………………………… 8
2) AIR CLEANER……………………………………………… 11
3) BATTERY CONNECTION ………………………………… 12
IV. STARTING THE ENGINE …………………………………… 13
V. RUNNING THE ENGINE……………………………………… 14
VI. STOPPING THE ENGINE …………………………………… 15
VII . EXHAUST CONTROL SYSTEM SERVICE ……………… 16
1)MAINTENANCE …………………………………………… 16
2)REPLACING PARTS………………………………………… 16
3)TAMPERING AND ALTERING …………………………… 16
4)PROBLEMS AFFECTING EXHAUST EMISSIONS ……… 17
VIII. MAINTENANCE …………………………………………… 18
1)MAINTENANCE SCHEDULE……………………………… 18
2)MAINTENANCE METHOD………………………………… 19
IX. TRANSPORTAND STORAGE ……………………………… 22
X. TROUBLESHOOTING ……………………………………… 23
XI. SPECIFICATIONS …………………………………………… 27
XII. ELECTRIC DIAGRAM ……………………………………… 28
XIII. EASY WORN PARTS AND ACCESSORIES LIST ……… 29
CONTENTS

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I. SAFETY PRECAUTIONS
Indicate a possibility of invalid warranty and personal
or equipment damage if instructions are not followed.
Please pay special attention to the followings:
1. Strictly set the engine according to the regulated power on the owner's
manual. Do not overload, overspeed the engine or run it with low load
and at low speed in a long time.
2. Use specified grade of gasoline. The fuel should be fully deposited
and filtrated before use. Keep clean the fuel filler, change the oil
periodically.
3. Periodically check the installation, connection and the degree of
tightness of the xed bolt. Tighten it if necessary.
4. Periodically clean the element of the air cleaner, change it when
necessary.
5. The engine is air-cooled, so clean the radiator, fan cover and fan in
time in order to make the engine cool normally.
6. The operator should be familiar with the working principle and
structure of the gasoline engine, knowing how to make an emergent
stop and the operation of all controlling parts. Any one without
training is forbidden to operate the engine. Keep periodical
maintenance. Solve problems in time. Do not run the engine in spite
of malfunction.
7. Running the engine in a well -ventilated place, keep it at least one
meter away from building walls or other equipments, keep away from
SAFETY PRECAUTIONS

·5 ·
inammables such as gasoline, matches and so on to avoid possibility
of re.
8. Refuel in a well-ventilated area with the engine stopped, and in places
refueling or storing gasoline, no smoking and any ames or sparks.
9. Refuel the fuel tank not too full so as to avoid fuel’s spilling out.
If there is spilled fuel around, be sure to clean it thoroughly before
starting.
10. Do not run the engine in airtight or ill-ventilated places.
11. The exhaust mufer is very hot during running the engine even after
the engine stops. Never touch it, or you may get burns. Transport or
store the engine with it cooling down entirely.
12. Safe warning label:
Please carefully read warning label before operating. Our company
will not assume any responsibility for person hurt, or equipment
damaged caused by disregarding this warning label.
SAFETY PRECAUTIONS

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II. PARTS DESCRIPTION
1. Feature
PARTS DESCRIPTION
MUFFLER
SHROUD ASSY.
SHROUD SHIELD
RADIATOR
LUG
DECORATIVE BOARD
AIR CLEANER
OIL FILTER ASSY
STARTING MOTOR
SOLENOID SWITCH
OIL DIPSTICK
SPARK PLUG
LUG

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2. Model & series no.
MODEL
SERIAL NO.
FINISHED PRODUCT NO.
PARTS DESCRIPTION

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III. PRE-OPERATE INSPECTION
1. engine oil
• Engine oil is a key factor in deciding the engine’s performance. Do
not apply engine oil with additives or 2-stroke gasoline engine oil,
because they haven’t enough lubrication, and may shorten the engines
service life.
• Check the engine with it stopped on a level ground.
Use 4-stroke engine oil for API service classication SE class
or equivalent, and always check API service label on the oil container
to be sure it includes the letters SE or equivalent.
Check method:
1) Remove the dipstick and clean it.
2) Reinsert the dipstick into the oil lling hole without screwing it, and
check oil level.
3) If the oil level is too low, add the recommended engine oil up to the
oil upper level.
ENGINE OIL CAPACITY: 670 2.0L
ENGINE OIL RECOMMENDED: SAE10W-30
PRE-OPERATE INSPECTION
sae
environment temperature