Rato S100 User manual
9
-GYUROTK+TMOTK
5]TKXȑY3GT[GR
Chongqing Rato Technology Co.,Ltd.
Thank you for choosing general gasoline engine of our company.
The manual gives information with respect to operation and maintenance of engine, and be
sure to read it carefully first before operation.
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.
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 WILL 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.
9GLKZ_VXKIG[ZOUT
gIf following this instruction, it can safely and reliably operate. Before
operating, Please carefully read this manual before operating or it will damage
others or engine.
gRead this operation and maintenance of the engine and driven devices.
CONTENTS
I. SAFETY PRECAUTIONS …………………………………………… 4
II . PARTS DESCRIPTION ……………………………………………5
I II. PRE-OPERATE INSPECTION ………………………………… …6
IV STARTING THE ENGINE ………………………………………11
V. RUNNING THE ENGINE…………………………………………13
VI STOPPING THE ENGINE ……………………………………… 14
VII. MAINTENANCE ………………………………………………14
VIII. STORAGE ……………………………………………………18
IX. TRANSPORT……………………………………………….……20
X. TROUBLESHOOTING …………………………………………20
XI. SPECIFICATIONS ………………………………………………22
XII. ELECTRIC DIAGRAM …………………………………… ……23
XIII. CRANKSHAFT OUTPUT TERMINAL STATE…………………23
I. SAFETY PRECAUTIONS
Please pay special attention to the following:
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 fixed 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 wall s or other equipments, keep away from inflammables such
as gasoline, matches and so on to avoid possibility of fire.
8. Refuel in a well-ventilated area with the engine stopped, and in places
refueling or storing gasoline, no smoking and any flames 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.
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II. PARTS DESCRIPTION
1. Feature
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1 2
3
5
4
6
1
2
3 4
5
III. PRE-OPERATE INSPECTION
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WARNING˖
1. Gasoline is extremely flammable and is explosive under certain conditions.
2. Refueling in a well-ventilation area with the engine stopped. Do not smoke and allow
flames or sparks in the area where gasoline is stored or where the fuel tank is refueled.
3. Do not overfill the fuel tank (there should be no fuel in the filling neck). After
refueling, make sure the fuel tank cap is set back securely.
4. Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite. If any
fuel is spilled, make sure the area is dry before starting the engine.
5. Avoid repeated or prolonged contact with skin or breathing of fuel vapor. Keep out of
reach of children.
45:/)+
Fuel may damage the oil paint and plastic. Be careful not to spill fuel when
refueling. Any damage due to oil spilling is not within valid warranty.
L[KRZGTQIGVGIOZ_ 2
WARNING:
It will hurt personnel if not to correctly maintain engine and deal
with trouble before operation.
Only use unleaded gasoline and recommend gasoline grade
#
90
over.
Unleaded gasoline can reduce gasoline engine carbon deposit and prolong the exhaust
system service life.
Never use contaminated gasoline or mixed gasoline with oil. Don’t allow the dust,
foreign matter or water entering into fuel tank.
Light knocking" or "spark exploding" sound can be hear when the engine overloading. It is
normal. Do not be worry about that.
If " knocking" or "spark exploding" sound occur at a steady speed under normal load, change
grade of gasoline; if such phenomena still happen, consult your dealer for help, otherwise the
engine may be damaged.
='84/4-
When the engine is running, continuously "Knocking" or "spark exploding" sound occurring
will damage engine. "Knocking" or "spark exploding" sound from misusing will not be within
the valid warranty.
+TMOTKR[HXOIGZOUT
45:/)+
xEngine lubrication oil is a key factor in deciding the engine’s performance. Do not apply
lubrication oil or 2-stroke gasoline engine oil, because they haven’t enough lubrication, and
may shorten the engines service life.
x&
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Use conforming to or over U.S lubrication oil for API service classification SG ,SF class
or equivalent, and always check API service label on the oil container to be sure it includes
the letters SG, SF or equivalent.
Engine oil recommended: SAE10W-30. Other viscosities shown in the chart may be used
when the average temperature in your area is within the indicated range.
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Engine oil capacity: 0.3L
1. Be sure the engine stopped on the level ground.
2. Remove the dipstick and clean it.
3. Reinsert the dipstick into the oil Filling hole without screwing it, and
check oil level.
4. If the oil level is too low, add the recommended engine oil up to the oil upper
limit.
5. Reinstall the dipstick.
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Oil dipstick
Oiling port
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A dirty air cleaner will restrict air flow to the carburetor, reducing engine performance
Never run the engine without an air cleaner, or severe wear of the engine may be
resulted in.
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Exhaust contains poisonous carbon monoxide gas Breathing carbon monoxide can cause
unconsciousness or death.
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CLOSE Fuel cock OPEN
OPEN CLOSE Choke lever
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Pull the starter grip lightly until resistance is felt, then briskly.
NOTICE˖
˖
Don’t allow the starter grip to snap back against the engine.
Return it gently to prevent damage to the starter
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OFF
ON
engine stop switch
Starter grip Starter coiler
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HIGH ALTITUDE OPERATION
At high altitude, the standard air-fuel mixture will be too rich. Performance
will decrease and fuel consumption will increase. A very rich mixture will
also foul the spark plug and cause hard starting. High altitude performance
can be improved by specific modifications to the carburetor. If you always
operate you engine at altitudes above 1800 meters, have your servicing
dealer perform this. Whether or no, the engine power will lower 3.5% in
increase each 305 meter.
CAUTION:
Modified engine applicable to altitude may be damaged seriously in area
below altitude of 1800 meters for overheating, because its mixture ratio is
too small for operation in low altitude area When the carburetor has been
modified for high altitude operation the air – fuel mixture will be to lean for
low altitude use. Operation at altitudes below 1800 meters with a modified
carburetor may cause the engine to overheat and result in serious engine
damage. Please have your servicing dealer for recovering to stander state.
Throttle lever
LOW
HIGH
</9:566/4-+4-/4+
In emergency, push the engine switch to “OFF”.
In normal, please do as following
1. Push right the throttle lever to low speed position.
2. Push the engine switch to “OFF”. position.
3. Set the fuel cock to “OFF”.
45:/)+
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VII MAINTENANCE
Maintenance is good security, economic and reducing trouble keep points. But also
can reduce pollution.
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MAINTENANCE SCHEDULE
Frequency
Each
time
First
month
or 20
hrs
Each
season
or 50
hrs
Every 6
month
or 100
hrs
Each
year or
300 hrs
Item
Engine oil Oil level
Re
p
lace
Air cleaner
Check
Clean
Re
p
lace
De
p
osit cu
p
Clean
Spark plug Clean
,
ad
j
ust
Re
p
lace
Idlin
g
Check-ad
j
ust
Idlin
g
Check-ad
j
ust
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Fuel tank &
fuel filter Clean
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(1) This items should be serviced by our authorized our company servicing dealer,
(2) Unless you have the proper tools and are mechanically proficient.
1. Replacement of lubrication oil
Drain the engine oil rapidly and completely out when the engine is hot.
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JU]T
Do not dump oil containers or discarded engine oil into rubbish boxes or onto the ground. For the sake of
environmental protection, we suggest you take in discarded engine oil with a closed container and bring
to local recycling station.
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2. Maintenance of air cleaner
A dirty air cleaner can restrict air flowing into the carburetor. To keep the carburetor in good
working conditions, please service the air cleaner periodically. If operating the engine in
extremely dusty area, the job should be done more often.
WARNING: Never clean the air cleaner element with gasoline or low flash-point
detergents, or explosion may happen.
CAUTION: Never run the engine without an air cleaner, because air with dirt and dust
entering the engine can speed up the engine wear.
1) Remove the air cleaner cover off and take the element out.
2) Wash the element with home detergents and warm water (or non-flammable or high
flash-point cleansing solvents) and dry up.
3) Soak in clean engine oil until saturated. Squeeze out excess oil, otherwise, the engine
will smoke in starting stage.
4) Reinstall the element and put the air cleaner cover on.
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,UXXKIUSSKTJKJYVGXQVR[MNUZ\GR[KUTR_[YKOTZNKTUXSGRZKSVKXGZ[XK
In order to ensure the engine normal running, gap of the spark plug must be correct and
no deposit around the
Oil dipstick
Oil drain plug
3.1 Remove the spark plug cap. Clear away dirt around the spark plug base.
Dismantle the spark plug with a spark plug wrench.
WARNING:
Don’t touch the muffler in running and just engine stopping stage to avoid burn.
Visually check the spark plug. Clean with a steel brush. If the insulator is damaged,
replace the spark plug instead.
3.3 Measure the spark plug clearance with a feeler. The clearance should be 0.7~0.8mm. If
adjustment is necessary, bend the side electrode carefully.
Side electrode
Sealin
g
rin
g
Spark plug
Spark plug
wrench.
,OZZNKYVGXQHGIQTo avoid cross-threading, first, screw in spark plug by hand,
Screw on the spark plug to the bottom, then screw in by a spark plug wrench and
compress the gasket.
-- If a new spark plug is used, more twist 1/2 turns after compressing the gasket.
--If reinstalling the used spark plug, just more twist 1/8-1/4 turns.
45:/)+
xThe spark plug must be tightened securely, or it may become very hot to damage the engine.
.Only use recommended spark plug or the equivalent. Incorrect heat range of the spark plug
may damage the engine
x ,OZZNKYVGXQVR[MIGVHGIQZNKYVGXQVR[M
Idle speed adjustment of the carburetor
Start the engine and preheat it to normal operating temperature.
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Idle speed
adjusting bolt
Carburetor
<///9:58'-+
='84/4-
9
tore the engine when it is cool so as to avoid getting burns or fire.
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WARNING:
Fuel is extremely flammable and explosive under certain conditions. Keep smoke, fire
and spark away from operating site.
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z
z
z
Oil drain plug
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Remove the spark plug with spark plug wrench. Fill about a spoon of fresh engine oil
onto the cylinder. Crank the engine up to distribute engine oil evenly. Reinstall the spark
plug.
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/>:8'49658:
If the engine has been running, allow it to cool for at least 15
minutes before loading the engine-powered equipment on the transport vehicle. A hot engine
and exhaust system can burn you
and can ignite some materials.
Keep the engine level when transporting to reduce the possibility of fuel leakage. Turn the
fuel cock to the OFF position
X. TROUBLESHOOTING
+TMOTK]ORRTUZYZGXZ
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