IHI Shibaura Rabbit P456 User manual

Rabbit
FIRE FIGHTING PUMP
Instruction Manual
Please be
sure to read
this before
starting to
operate the
product.
As for the inspection/maintenance of the product, please
contact the maintenance establishment or distributor
with a certified mechanic for portable fire fighting pump
maintenance.

(1)
Introduction
Thank you very much for purchasing our product, “Rabbit Fire Fighting Pump”.
In purpose of using “Rabbit Fire Fighting Pump” safely, please make sure to conrm
the below notice rstly.
* Please use this product only for re-ghting operations.
* Among the fire station workers, members of voluntary organization for disaster
prevention, members of re defense organization for self-protection and certied
mechanics for portable fire fighting pump maintenance, only a person who
received educational training in terms of the safety usage manner can operate
this product.
Furthermore, as for the inspection/maintenance of the product, please contact
the maintenance establishment or distributor with a certied mechanic for portable
fire fighting pump maintenance. This instruction manual was prepared for the
person to operate “Rabbit Portable Fire Fighting Pump” effectively and safely. For
full functional operation of “Rabbit Portable Fire Fighting Pump”, and, for safety
operation, please be sure to read this instruction manual.
If you have inquiry or problem after having read this instruction manual, please
contact the distributor where you purchased the product or contact us directly.

(2)
Table of Contents
For safety use ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙3
Name of parts ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙6
Before starting to use ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙7
Preparation for operation ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙8
Operation ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙10
Water delivery from a re hydrant/ Relaying water delivery ∙∙∙∙∙∙14
Rabbit Monitor ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙16
Maintenance ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙18
Points to be careful about in cold season ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙22
Periodic Inspection ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙23
Countermeasures for trouble ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙25
Unit conversion list ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙28
Specications ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙29
Wiring diagram ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙32

(3)
For safety use
Please be informed of the classication of each warning indication and meaning
as below.
Danger: In case of false operation, death or serious injury could happen.
Warning: In case of false operation, death or serious injury may happen.
Caution: In case of false operation, the minor injury or material damage
may happen.
Furthermore, the below danger/risk might occur. Please strictly adhere to these
instructions as well.
Risk Rank Parts of Risk Points to note
Fire
Danger
Fuel Tank (Fueling Time)
1) Keep re away
2) For fuel feeding, halt the engine and
cool it down.
3) Make sure not to spill the fuel.
Warning Mufer (Carbon
monoxide)
Mufer (Dry grass)
Battery (Ignition by gas)
1) Operate with a 3-meter distance
from inammables.
2) Do not operate on dry grass. If you
need to do so, remove the dry grass
under the mufer.
3) Rell the battery with proper
ventilation.
4) While relling the battery, keep re
away.
Caution
Fuel Tank (Fueling Time)
1) When spilt the fuel, wipe off with the
rag and dispose of it carefully.
2) Make sure to screw on the fuel tank
cap securely.
3) Fuel with proper ventilation

(4)
Risk Rank Parts of Risk Points to note
Burn
Caution
Mufer (Carbon
monoxide)
Exhaust Manifold
Exhaust Port
Battery (Electrolytic
solution )
1) Do not touch during high
temperature.
2) Be careful not to allow electrolytic
solution to touch your skin.
Rotating Part
Caution
Recoil
1) In starting the operation with recoil,
be careful not to get clothes or
gloves caught in it.
2) In starting the operation with recoil,
make sure that anybody/anything
does not exist within a 2- meter radius.
Poison
Warning
Mufer (Carbon
monoxide)
Do not operate with poor ventilation.
(Ex. Pump house, within a tunnel)
High-Pressure
Water
Caution
Nozzle, Water hose
outlet
1) To prevent possible injury, do not
discharge water on a person.
2) During the preparation for
discharging water, do not peek into
the water hose outlet or nozzle.
3) Make sure to open/close the water
discharge valve at low speed.
4) Do not start the engine while the
water discharge valve is open.
(Excluding relaying water delivery)
Electric
Shock
Warning Ignition plug
High-tension cable
Battery
1) Do not touch while operating.
2) For changing the battery, remove
the battery from the negative-
terminal and set up from the positive-
terminal.
Cut,
Being
caught
Caution
Carriage handle
Water release valve
1) In operating the handle, do not
touch the hinge part.
2) In operating the water discharge
valve, do not put your hand or ngers
into the water hose outlet.
Scattering/
Explosion of
stone and
others.
Caution
1) As some extraneous materials like
stones could be scattered and
damage your body while discharging
the water, be careful in using.
2) Do not inhale or vomit the
inammable uid or medical uid.
There is a danger of explosion and
re.

(5)
Risk Rank Parts of Risk Points to note
Disposal
Caution
1) As for the disposal of battery or oil,
consult with specialized vendors.
Slip
Caution
1) Do not spill the oil or other uid. Make
sure to wipe out the spilt oil.

(6)
Parts and Components
(Pump)
(Recoil Starter Side)
(Operation Side)
(Opposite side operation)
Water discharge
valve
Water
discharge valve
drain cock
Exhaust
cock
Pump
cover drain
cock
Carriage
handle
Relief valve
drain hose
Mufer part
drain cock
Mufer
exhaust port
Cylinder
drain cock
Water inlet
cap
Water stop valve
drain button
Pressure gauge Main switch
Water
supply
lever
Throttle
dial
Fuel tank
cap
Fuel tank
Rabbit
monitor
Compound
gauge
Vacuum pump
strainer cap
Battery
Fuse box
Searchlight
plug
Recoil starter
handle
Recoil starter
Oil tank cap
Spark plug
cap
Vacuum
pump exhaust
hose
Exhaust
manifold

(7)
Before starting to use
(1) Make sure that all standard equipment/accessories are included in the
package.
(→ p.29 - p.31 “Specications”)
(2) Pour electrolytic solution into the battery.
(→p.21 “ How to handle the battery and charger”)
( ”M” Specications does not require this procedure)
(3) Connect the battery. Firstly, remove cover on the operation side and then
connect the battery with positive terminal and negative terminal in that order.
(“M” Specications does not require this procedure)
(4) If you need to x the water discharge valve toward the operation side, loosen
the xing bolt of water discharge valve stopper temporarily and then pull down
the stopper.
(5) If needed, take the below procedure to remove/attach the cover.
1) Put the ring part of fastener in standing position.
2) Rotate the ring with a quarter-turn to the left.
3) Make sure that the fastener is loosened and remove the cover.
There are three fasteners in each cover. To remove the cover, loosen the
rest of fasteners with above procedure.
* Take an opposite procedure to attach the cover.
Warning
pull down
1
2
3

(8)
Preparation for operation
1. Put in fuel.
Put regular unleaded
gasoline into the fuel tank.
(Due to the oil injection
system, no mixing with
2-cycle engine oil is needed.)
Tank capacity: 11 L
You can conrm the amount
of fuel with the gauge on the
tank.
(Notice)
1. Do not put in the fuel fully to the
brim.
2. In case of fuel in stock for a long
time, which causes an irritating smell
or impurity, replace it with new fuel
immediately.
2. Put in oil.
Put in special oil for 2-cycle
engine.
Tank capacity: 1.2 L
(Notice)
1. Do not put in oil fully to the brim.
Danger
Oil Tank
Oil Gauge
Fuel tank
Fuel gauge
Caution

(9)
3. Set up the pump.
Please be warned on the following things.
(1) When moving the pump, carry it holding the carriage handle properly.
(2) As the mufer is positioned in the bottom part, do not put the pump on
something such as dry grass.
(3) In suctioning water, position the pump closely to the water surface as much as
possible for less difference of altitude between pump and water. Furthermore,
set the pump horizontally level as much as possible.
(4) To avoid the air pocket in the suction pipe, elevate the pipe toward the pump
side.
(5) Attach the strainer and basket on the nozzle of suction pipe and, in case of
vacuuming the dirt, spread the mat under the basket.
(6) To avoid vacuuming air, set the basket 30cm under the water.
(7) Get the drainage hose straight without folding or buckling.
4. Make sure to close the water discharge valve, pump cover, cylinder and
mufer part drain cock. Then, open the exhaust cock.
Caution
Warning

(10)
Operation
1. Starting
(1) Make sure that the throttle dial 1is
set at the position of “Starting/Low
Speed”.
(2) Set the main switch to 2
“Operation”. When starter motor
starts to operate, turn the 2switch
further to “Starting”. When the recoil
starts to operate, pull the recoil
starter handle as suggested in the
below “Notice in Starting”.
(3) The engine then starts.
(Notice)
1. Over fueling might cause difculty in
engine starting. In that case, please
refer to Trouble Countermeasure on
p.25.
2. In purpose of controlling the pulling
power of recoil starter handle,
the decompression system has
been installed. When you pull
the recoil starter handle lightly
and hear the whoosh sound, it
means the decompression system
is working properly. If you cannot
hear the whoosh sound, press the
clear button on the upper side of
decompression system.
3. Do not pull the recoil starter rope
fully out.
4. Do not start/halt engine repeatedly
without delivering water. There
would be a possible explosion (after-
re explosion) in mufer caused
by fuel air mixture of imperfect
combustion.
1
3
2
4
(Notice in starting)
How to pull the recoil
starter: Pull the rope
about 50cm rst
and when you nd
the position feeling
heavier pull the
rope with all your
strength toward right
backward using both
hands. Please keep
your hands on starter
handle until the rope is
pulled back in.
Decompression
Water
discharge
valve
Main
switch
Water supply lever
Throttle
dial

(11)
2. Water Delivery/ Water Discharge
(1) After engine starts, set the throttle dial 1at the position of “water delivery” and pull the
water delivery lever 3toward “water delivery” to start the operation of vacuum pump.
(2) After conrming that the water is discharged from the exhaust hose of vacuum pump
continually, return the water delivery lever to the direction of “water discharge”
immediately. If suction hose has unevenness, there would be an air pocket. At that time,
please operate the water delivery lever 1-2 seconds longer than usual.
(3) After conrming the safety of nozzle, open water discharge valve 4slowly while keeping
throttle dial at the position of “starting/water delivery”. After water discharge started, make
an adjustment of throttle dial for appropriate water discharging pressure.
(Notice)
1. In case of higher pump position for water suctioning, do not open the water
discharge valve suddenly. The water being suctioned would be owing out,
which might prevent the water discharge. Furthermore, the higher water
suctioning position might cause cavitation and, in that case, set throttle dial to
low speed as much as possible.
2. In case of operating the vacuum pump by water delivery lever, keep the
operation time to no more than 30 seconds.
3. The engine gets cooled down by delivering water. When operating the engine
without delivering water (dry running), set throttle dial to low speed and keep
the operating time to no more than 2 minutes. This re ghting pump is equipped
with safety device to halt the engine in detecting the rising of cooling water
temperature, however the dry running without any cooling water might cause
the false operation of safety device while keeping throttle dial at the position of
medium-high speed. Please strictly adhere to the instruction mentioned above.
(→P.12 “For longer dry-running”)
4. In purpose of operating the pump with tightly closed water discharge valve
after water delivery, this re ghting pump is equipped with the relief valve to
drain the heated water in the pump. However, if throttle dial would be set at
the position of medium-high speed while operating with closed water discharge
valve, the water temperature could rise faster than the draining heated water,
which might cause the water to ow out. While operating with closed water
discharge valve, make sure to set throttle dial to the position of low speed.
Furthermore, when relaying water delivery or setting throttle dial to full toward
“high speed”, the pump pressure is getting higher than usual, which might
cause the draining of water from relief valve drain hose.

(12)
5. For smooth water discharge, this re ghting pump is equipped with the air
bleeding device which can bleed the air from the cooling water pipe while
delivering the water. No problem in using the pure water, however, the
operation surrounded by the earth and sand might cause the problem in
clogging up the air bleeding device. In that case, the below conditions occur.
i) Vacuum pump does not work for sucking water.
ii) While discharging the water, water continuously drained from the exhaust
tube of air bleeding device.
iii) Water ows out.
For above conditions, close the exhaust cock for the normal operation. After
completing the operation, clean up inside of the air bleeding device.
6. As required pump pressure varies from the number of hose extension, caliber of
nozzle, height of sending water and double-line water discharge, decide your
pump pressure in accordance with the water discharging pressure of nozzle.
7. Please be advised that excessive water discharging pressure or sudden
opening/closing of water discharge valve may cause the water pipe to ing
around.
8. In case of water delivery/relaying water delivery from water hydrant, please
refer to p.14 “Water supply from a re hydrant/ Relaying water supply”.
9. In case of operating without using
the nozzle for bailing out the water
from the tank or sending the water
to relay tank, as well as, in case of
operating with the two-line water
discharge, make sure to install the
safety nozzle between the pipe
tting and water discharge valve.
3. Suspension of water discharge
(1) If you need to suspend the water discharge for replacement of nozzle or adjoining hose,
set throttle dial at a position of “low speed” and set the water discharge valve to “full
close”.
(2) If you need to suspend the operation in keeping the water pipe as it is, set the throttle
dial at the position to “low speed”, while keeping the water delivery lever at the position
of water discharge. In this case, as non-return valve works to prevent the water owing,
please start the engine and open the water discharge valve to discharge the water.
(However, make sure to restart within 3 minutes).
4. Stop
(1) Set throttle dial to the full toward “low speed” and “close” the water discharge valve.
(2) When you set the main switch to “stop”, the engine stops.
(Notice)
Without setting the throttle dial to the position of “low speed”, do not stop the engine under
the operational condition with medium-high speed. There might be a risk of after-re.
Caution
Pipe tting
Install with
water
discharge
valve
Safety
nozzle
Packing

(13)
5. For longer dry running.
Storing the cooling water in cylinder allows the dry running with idling condition for several
minutes. If you want to operate in this way, leave the water when draining water after the
operation while keeping the cylinder drain cock closed.
Furthermore, when operating in this way during the cold season, make sure to put the
antifreeze into the cylinder. (→P.22 “ Point to be careful about in cold season).
6. Safekeeping
(1) Make the water discharge valve “half open” and then
open each drain cock of water discharge valve, pump
cover, cylinder and mufer part. Push the button of water
stop valve drain to drain completely. After draining,
make sure to close them.
(2) After removing the suction hose, restart the engine. After
operating the vacuum pump for 2-3 seconds to remove
the water in the vacuum pump, stop the engine again.
(3) Install water inlet cap and cover the pump for
safekeeping.
(Notice)
(1) Incomplete draining may cause damage or corrosion by freezing.
(2) In case of using the muddy water or ocean water, rinse out impurities in the pump with
pure water. After that, make sure to drain water in each part.
(3) Keep the pump housing free from moisture.
(4) Make water discharge operation at high speed of throttle dial for 5-10 minutes once a
month.
(5) During the safekeeping, keep on charging of electricity with accessory automatic
battery charger. (→ P.21 “How to handle battery and charger”)
(6) Make sure the water has been drained completely before the safekeeping.
During the cold season, put the antifreeze into the pump.
(→ p.22 “Point to be careful about in cold season).
Open
Open
Open
Open
Open
Open
Half Open
Close
Close Close
Close
Close
Close

(14)
Water delivery from a re hydrant/ Relaying water delivery
1. Water delivery from a re hydrant
(1) The capability of water delivery from a re hydrant
In case of water delivery from a re hydrant, make sure the re hydrant can provide
enough water for water discharge.
As the capability of water delivery from a re hydrant depends on the plug caliber,
piping condition and initial water pressure, it is required to examine the reciprocal
inuence of those factors. If the re hydrant has high initial water pressure, for example,
but its plug caliber is small, the capability of water delivery is not enough. On the
contrary, even if the water pressure is low but its plug caliber is big, it has enough
capability to deliver water.
(2) How to deliver water.
(a) As high water delivery pressure might damage the suction pipe when delivering
water into the pump, use the hose and connect with metal tting joint as a general
rule.
(b) As water source of a re hydrant might contain the extraneous materials such as dirt
or small stones, remove them in opening the valve and discharging the water before
connecting the hose.
(c) Fully open/close the valve of a re hydrant as a general rule and make adjustment
of open degree only if the water delivery pressure is especially high.
(d) Open the water discharge valve and conrm the compound pressure gauge
before starting the pump engine.
(e) After the engine starts, regulate the throttle to let the pressure of compound
pressure gauge to be more than 0.05Mpa.

(15)
2. Relaying water delivery
In case of the wood re or urban re with a remote water source, relaying water delivery
connecting more pumps in series would be applied. During the relaying water delivery, the
pump set by the water source (parent pump) and the pump set on the other side (child
pump) need to be operated together and you should know various points to make note of
beside the normal operation.
(1) How to operate
1Operate the parent pump in normal procedure. However, keep sending pressure
more than 0.3MPa.
2Open the water discharge valve of child pump beforehand. When the water sent
from the parent pump arrives, conrm the pressure gauge and make a decision to
start the operation.
3In operating the child pump, handle the throttle gradually. Furthermore, manage
the compound pressure not to be under 0.05 MPa, and the pressure gauge not to be
over 1.0MPa.
4In completing sending water from the parent pump, stop the engine of child pump
rst. Furthermore, do no close the water discharge valve until water delivery from
parent pump stops.
(2) Point that requires attention
(a) Do not denitely close the water discharge valve of child pump while sending the
water from the parent pump. Due to the shock (water hummer) and high pressure
caused by the sudden change of water ow channel, an accident such as damage
of pump might occur.

(16)
Rabbit Monitor
Rabbit monitor on the operation panel allows
integrated control for operational condition of
pump. With the warning display or emergency
shutdown function in case of abnormal
condition, you can use the pump safely.
1. How to check the Monitor
Operation
In setting the main switch to “Operation”,
LED lights on monitor except “F1 Sensor” turn
on for 3 seconds. (As for “M” specications,
light turns on after starting engine and
increasing the engine speed.) As no light
means something is abnormal, please
contact the maintenance establishment or
distributor for inspection/maintenance.
2. Monitor Display and Countermeasures
Display Monitor Operation Countermeasures
Fuel
When the fuel is almost depleted,
LED turns on.
Put the gasoline into the fuel
tank.
2-Cycle Oil
When the oil is not enough, the
engine stops to prevent the
burning out and LED turns on.
“Stop” the main switch, rell the oil in
the oil tank and restart the engine.
Cooling Water
When the water temperature of
cooling water gets higher, the
engine stops to prevent overheat
and LED turns on. (Note.1)
Temperature of cooling water gets
higher. Examine the cause and
eliminate it. You can restart the
engine, however if the cause is not
eliminated, the engine stops again
15 seconds after restarting. (Note 2)
F1 Sensor
Abnormal condition for any of
TPS, WTS, ATS and APS is conrmed,
the light turns on. Furthermore, if
a connector linked with Injector/
ignition coil is disengaged, the light
turns on. The lighting condition is
suggested in annexed sheet 1.
Besides emergency, stop the engine
and contact the maintenance
establishment or distributor for
inspection/maintenance.

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Annexed sheet 1
Name of Sensor Lighting Image
TPS (Throttle Position
Sensor)
7- times consecutive
ashing light
WTS (Water Temperature
Sensor)
6- times consecutive
ashing light
ATS (Air temperature
Sensor)
5- times consecutive
ashing light
APS (Air Pressure Sensor) 4- times consecutive
ashing light
Disengaged connector
for injector wiring
2- times consecutive
ashing light
Disengaged connector
for ignition coil wiring
1-time plus 2-times
reciprocal ashing light
(Notice)
(1) During the dry running without cooling water, the monitor might not work properly.
Please follow the direction in this manual for dry running. ( →P11. (Notice) 3)
(2) Without eliminating the cause, do not repeat the restarting.
(3) Inspect each part practically at periodic inspection time, not only rely on Rabbit Monitor.
3. Auto Power-off Function
This product is equipped with Auto Power-off Function to prevent the waste of battery.
While leaving the main switch to “Operation” without any operation for 30 minutes, the
product is automatically turned off at the condition of “Stop”. In case of starting the
operation from the above condition, turn the main switch to the position of “Stop” once
and then start it again. (→P10. Operation)

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Maintenance
Engine and related parts
1. Ignition Plug
Clean up the electrode portion smudged by exhaust gas or carbon.
● Applicable Spark Plug : NGK B7HS
● Gap: 0.6 – 0.7mm
2. Throttle Dial
Control force of the throttle dial is possible with ne adjustment by the adjusting nut in the
base part of throttle dial.
0.6mm~0.7mm
Remove the rubber cap
and make nut adjustment.