RIEJU CENTURY 125IE User manual

Century
125ie
MANUEL DE PROPRIEÉTAIRE
OWNER’S MANUAL
MANUAL DEL PROPIETARIO

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Century 125 ie 3
RIEJU S.A. is grateful for the confidence you have put in their company and would like to congratulate you
on your choice of mortorbike.
The Century 125ie are the resulted of the long-term experience that RIEJU has had in competitions, which
has led to the development of a high performance vehicle.
The objective of this owner ’s manual is to denote the use and maintenance of your vehicle, we ask you to
read the instructions and information that follow carefully.
We wish to remind you that the life of the vehicle depends on how it is maintained. Maintaining the vehicle
in perfect working condition reduces the cost of repair.
This manual has to be considered as an integrate component of the motorbike and must remain part of the
basic equipment, and handed over in the event of a change of vehicle ownership.
In the event of any problems, please consult the RIEJU dealer who will assist you or check our web
www.riejumoto.com.
Please remember that for your motorbike to perform correctly, you should always fit original spare parts.

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Century 125 ie 4
CONTENTS
MOTORBIKE DESCRIPTION 6
DELIVERY OF THE MOTORCYCLE 7
IDENTIFICATION OF THE MOTORBIKE 9
ENGINE IDENTIFICATION NUMBER 9
MAIN ELEMENTS OF THE MOTORBIKE 10
KEYS 10
HANDLE BAR SWITCHES 10
Indicator Switch 10
Horn button 11
Main and dip beam light switch 11
CLUTCH LEVER 12
FRONT BRAKE LEVER 12
REAR BRAKE PEDAL 12
GEAR BOX PEDAL 13
PETROL TANK 13
ROUTINE TESTING 14
Front brake 14
Rear brake 15
Brake fluid level and brake pad wear 15
Throttle twist grip 16
Lights, indicators and warning lamps 16
Start switch 16
Tyres 17
INSTRUMENT AND INDICATORS 18
Speedometer (Kmh and Mph) 18
Out of gear (Neutral) indicator 18
Temperature warning lamp 18
Headlight Main beam light 18
Fuel lamp 19
Direction indicator warning lamp 19
Engine warning lamp 19
il Pressure Warning lamp 19
MOTORBIKE OPERATION 20
STARTING AND RIDING 20

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RUNNING IN 21
ACCELERATION 21
TO BRAKE (SLOWING DOWN) 22
STOPPING 22
GEAR BOX PEDAL 22
FRONT SUSPENSION 23
REAR SUSPENSION 23
COOLING SYSTEM 24
CHECKING & FILLING THE ENGINE OIL LEVEL 25
CHAIN ADJUSTMENT AND TENSION 26
CLEANING AND STORAGE 27
CLEANING 27
LONG-TIME STORAGE 28
CHECKS BEFORE USING MOTORCYCLE 29
TECHNICAL SPECIFICATIONS & CHARACTERISTICS 30
MAINTENANCE 32

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Century 125 ie
MOTORBIKE DESCRIPTION
This motorbike has a 124c.c. single cylinder; liquid cooled four stroke motor. With a piston diameter of 47,0
mm and it has a 58,0 mm bore.
The motor has an ignition electronic system, and a high-tension coil.
Engine power is delivered to final drive chain via a Multiple metal clutch with constant pressure springs,
submerged in an oil bath.
The engine is anchored to a highly resistant chassis, with tapered steering bearings.
The front suspension in the Century 125 ie consists of a hydraulic fork with bars, The rear suspension with
variable transmission consists of two shock absorbers with variable transmission also incorporate a gas shock
absorber with spring preload adjustment.
The front and rear brakes use a disk made of stainless steel and radial calliper on front brake and floating
calliper on rear brake.
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DELIVERY OF THE MOTORCYCLE (PRE DELIVERY INSPECTION & HANDOVER)
USER MANUAL – very important this explains in detail the essential functions of the motorcycle, safe use and
important maintenance practices.
WARRANTY REGISTRATION – complete the necessary information, pass a copy to the owner, and return a
copy immediately to your RIEJU distributor.
OPERATION - Explain the functions & correct handling of the motorcycle.
WARNINGS - Explain the importance of warning labels to ensure a long life of the motorcycle.
KEYS - Deliver the full set and recommend making a note of the key item reference.
FIRST SERVICE - Explain the importance of the service at 500 km and the ongoing service schedule.
PERIODIC MAINTENANCE - Explain the need of the periodic maintenance and indicates that don’t do the
correct maintenance and services indicates can be cause to loose the warranty.

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Century 125 ie 8
DELIVERY OF THE MOTORCYCLE (PRE DELIVERY INSPECTION & HANDOVER)
ADJUSTMENTS :
MIRRORS - Set to the correct position for the user.
CLUTCH LEVER - Adjust to suit.
REAR BRAKE LEVER ADJUSTMENT - Adjust to the correct height for the user.
GEAR LEVER ADJUSTMENT- Adjust to the correct height for the user.
WARNING: Changes on the bike don’t authorized by RIEJU, or use of parts that don’t are ORIGINAL
SPARE PARTS from RIEJU on the warranty period. Release RIEJU from any responsibility on the damages
produce on the bike and cancel the warranty.

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Century 125 ie 9
IDENTIFICATION OF THE MOTORBIKE
On the chassis you will find your motorbike's identification
number engraved
The number is stamped on the right hand side of the front frame
(Steering head.) is unique to every machine. This number is
required to register your vehicle, this chassis or VIN number
should be quoted when requesting warranty assistance or
genuine Rieju spare parts.
ENGINE IDENTIFICATION NUMBER
The engine serial number is located on the top, rear side bottom
of the engine.
The engine number will serve as a reference when requesting
spare parts from the dealership.

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MAIN ELEMENTS OF THE MOTORBIKE
KEYS
With this model, you will be given a set of keys, which are used
for the Ignition switch/Steering lock.
HANDLE BAR SWITCHES
1-. Indicator Switch
This has 3 positions: in the centre position it is deactivated, to
indicate right it must be moved to the right and to indicate left it
must be moved to the left.
NOTE: Note that the button always returns to the central
position, to switch off the direction indicators push button.
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2-. Horn button
Press the button to activate the horn.
3-. Main and dip beam light switch
This switch has two positions: when it ’s down the dip beam is on and in the upper position the main beam is
illuminated.
This model incorporates a bulb of 12V 60/55W H4 for light of main and dip beam and of 12V 5W for position
light.
CAUTION:Use other type of bulb or change of power of it can cause damages on the optics of the
vehicle. This type of fault is exempt from warranty.
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CLUTCH LEVER
The clutch lever is situated on the left-hand side of the
handlebar. To activate it, pull the lever towards the grip or
handlebar.
FRONT BRAKE LEVER
The front brake lever is situated on the right-hand side of the
handlebar. To activate the front brake, pull the lever towards the
handlebar.
REAR BRAKE PEDAL
The rear brake pedal is on the right-hand side of the motorbike.
To activate it, press downwards with the food.

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GEAR BOX PEDAL
This is situated underneath the left part of the motor, it is
activated with the foot taking it all the way and then letting it go
back to its’ original position before changing gear again. To put
the motorbike into first gear, the pedal has to be pressed
downwards. To change the other gears, lift the lever upwards
with the toe.
PETROL TANK
To get to the tank, open it using the stop- per of the tank,
turning it anti-clockwise.
The capacity of the tank is 9,5 litres.
CAUTION: Use only Unleaded petrol, without oil, the use of
another type of fuel can damage the engine and this
damages will not be considered as warranty.

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ROUTINE TESTING
Front brake
Pulling in the front brake lever operates the front brake by
pumping brake fluid from the master cylinder to the front brake
calliper. The brake pads are pushed by the calliper pistons
against the front disc. Slowing the bike down.
The braking surface of the disc should be free of oil and dirt to
ensure maximum braking efficiency. If for any reason the master
cylinder is empty of brake fluid after checking for pad wear it
should be topped up as necessary. If there is air in the system
the brakes will need to be bled.
WARNING: Bled the baking system will do by one
professional, Rieju recommend do this operation by your
official RIEJU dealer.

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Rear brake
Periodically check the brake fluid level in the reservoir situated
on top of the rear brake master cylinder and under the rear right
hand panel, to top up.
CAUTION: If the reservoir is empty please go to your
official RIEJU dealer.
Brake fluid level and brake pad wear
Check that the level of brake fluid is correct, if not, Check for
brake pad wear. If the pad material is less than 2mm thick, the
pads should be replaced. If the pads are not worn out, top up the
brake reservoir with brake fluid.
WARNING: Brake fluid is corrosive and will damage
paintwork, if spilt wash off with water immediately.
TIP:Always remember that the above must be carried out
by a RIEJU official service.

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Throttle twist grip (1)
Ensure it works correctly, by turning the grip and verifying if the
free play is correct. The grip should return to closed position
when released.
Lights, indicators and warning lamps
Check operation of all lights, and direction indicators plus the oil
warning lamp and petrol reserve panel lights. Replace bulbs as
necessary.
Start switch (2)
This switch is used to start the engine, after verifying that the
gear-change pedal is in the neutral position.
Kill switch (3)
This switch is used to stop the engine, when we use the kill
switch only the engine will stopped the rest of the electrical
system is still powered (lights, horn, injection pump, etc).
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Tyres
The tyre pressure directly effect the road holding ride comfort
and braking distance, the, therefore check the tyre pressures
regularly for your own safety.
ADVICE: Make sure that the rim is central and not
damaged, as well as the wear on the tyres. Do not
overload the vehicle as this will effect stability, and
increases tyre wear.
CAUTION: when the pressure is very high, the tyres can no
longer absorb any shocks, transmitting any road surface
defects directly to the chassis, handlebar and rider.
FRONT REAR
TYRE 100-90-18
56 P
130/80-17
65P
PRESSURE 1,9 Kg/Cm2
190 kPa
2,1 Kg/Cm2
210 kPa
PRESSURES

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INSTRUMENT AND INDICATORS
1.- Speedometer (Kmh and Mph)
2.- Out of gear (Neutral) indicator ( )
This light comes on when the gear change lever is in the neutral
(N) position, that is to say, out of gear.
3.- Temperature warning lamp ( )
This light is very important as it can tell us if there is an
excessive increase in engine running temperature due to an
engine fault or a low level of cooling liquid in the radiator.
ATTENTION: Do not use the bike with this warning light on,
as this may cause serious damage to the engine, consult
your RIEJU dealer as soon as possible.
4.- Headlight Main beam light ( )
This indicator comes on when the headlights are on main beam.
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5.- Fuel lamp ( )
The fuel level is below the reserve, fill up as soon as possible to
prevent running out of fuel.
6.- Direction indicator warning lamp ( )
This indicator comes on when we activate the direction
indicators.
7.- Engine warning lamp ( )
This indicator comes on when on fail is detected on the engine.
ATTENTION: Consult your RIEJU dealer as soon as possible.
8.- Oil Pressure Warning lamp ( )
This indicator comes on when the engine is low on oil,.
ATTENTION: Do not use the bike with this warning light on,
as this may cause serious damage to the engine, consult
your RIEJU dealer as soon as possible.
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MOTORBIKE OPERATION
It is very important to know how to operate your vehicle correctly.
ATTENTION:Remember that you must not leave the motor running in an enclosed area, as the toxic gas
from the exhaust could cause serious health problems.
STARTING AND RIDING
Open the petrol tap. If the motor is cold, fully open the choke lever. Turn the ignition key one position
clockwise and check the engine is in neutral, with the throttle closed press the starting button to turn the
engine over. Pull in the clutch lever and put the motorbike in first gear (down one click), slowly release the
clutch lever while at the same time accelerating slowly once moving allow the clutch lever to go its rest
position (OUT) and ride away. Do not accelerate too much until the motor is warm enough
ATTENTION: Before riding the motor should be warm, never accelerate or ride hard when the motor is
cold. This will prevent pre-mature damage to your engine.
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