RIEJU MRT 125 LC User manual

OWNER’S MANUAL
MRT 125 LC
EURO 5

MRT 125 LC

MRT 125 LC 3
RIEJU S.A. would like to thank you for your trust in our company and congratulate you on an excellent choice.
The MRT 125 LC Euro 5 model is the result of RIEJU, extensive experience in developing high-performance
vehicles.
The purpose of this Owner’s Manual is to set forth how to use and maintain your vehicle. We ask that you carefully
read the instructions and the information provided as follows.
Please remember that the vehicle’s lifespan depends on how you use and maintain it. Keeping it in perfect ope-
rating condition reduces the cost of repairs.
Please consider this manual an integral part of the vehicle. It must remain with its basic equipment, even in the
event of a change in ownership.
For any issues, please see your RIEJU dealer, who will be delighted to serve you, or visit www.riejumoto.es
Remember that for your vehicle to operate properly, you must always request original replacements.

MRT 125 LC4
CONTENTS
Vehicle description ........................................
Vehicle registration ........................................
Vehicle delivery .............................................
Prior vehicle inspection ..................................
Technical data ...............................................
Location of serial numbers ............................
Main vehicle elements ..................................
Clutch lever ...................................................
Front brake lever ...........................................
Handlebar switches .......................................
Blinker switch ...........................................
Horn button ..............................................
Light switch ..............................................
Start-up button .........................................
Lock ...............................................................
Odometer .....................................................
Signals .....................................................
Adjustment button ....................................
Km/mile selection ................................
Using TRIP (partial route) ...................
Total time ............................................
Partial times ........................................
Selection button .......................................
Using the stopwatch .............................
Speed log ............................................
Settings ....................................................
Wheel diameter and number of pulses
Front suspension ...........................................
Rear suspension ...........................................
Rear brake pedal ...........................................
Gearshift pedal ..............................................
Kickstand .......................................................
Fuel tank ........................................................
Tyres .............................................................
Battery ...........................................................
Driving ...........................................................
Starting up the engine ..............................
Acceleration .............................................
6
7
8
9
12
14
16
18
18
19
19
20
20
21
22
23
24
26
26
26
27
27
28
28
28
30
30
32
32
33
33
34
35
36
37
38
39
41

MRT 125 LC 5
Braking .....................................................
Stopping ...................................................
Driving ......................................................
Maintenance ..................................................
Front headlight bulb ..................................
Position lamp bulb ....................................
Rear light ..................................................
Plate light .................................................
Brakes ......................................................
Front brake - adjusting lever distance ......
Rear brake - adjusting pedal distance ......
Front brake fuid level ................................
Rear brake fuid level .................................
Clutch - Adjustment ..................................
Fuel line - Adjustment ...............................
Brake pads ...............................................
Cooling system .........................................
Spark plug ................................................
Crankcase oil - checking and filling ..........
Air filter .....................................................
Steering set ..............................................
General lubrication ...................................
Maintenance table ....................................
Cleaning and long-term storage ....................
Cleaning ...................................................
Long-term storage ....................................
Warranty ........................................................
41
41
42
43
44
46
46
47
48
49
49
50
51
52
53
54
55
56
57
59
61
62
63
65
65
66
67

MRT 125 LC6
VEHICLE DESCRIPTION
This motorcycle has a four-stroke single-cylinder engine with water cooling. Its cubic capacity is 125 cubic cen-
timetres, with a 58-mm diameter piston with 47 mm movement.
It is turned on with an electric wheel and 140 W AC spool.
Steel and friction multi-plate clutch with constant pressure springs, immersed in oil bath.
The engine is anchored to a highly resistant perimeter chassis, with cone roller bearings.
The front suspension is a hydraulic fork with 37-mm diameter bars. Rear suspension is a hydraulic mechanical
shock absorber that provides gentle operation.
The front and rear brakes are stainless steel disc brakes. The front measures 260 mm and the rear 200 mm.

MRT 125 LC 7
VEHICLE REGISTRATION
Please make a note of the chassis and engine serial numbers, which will help you for all purposes (certificate of
characteristics, insurance, registration, etc.).
These numbers will be useful for you for any suggestions or complaints, as well as to order replacement parts.
Chassis serial number (p.12)
Engine serial number (p.12) Dealer seal

MRT 125 LC8
VEHICLE DELIVERY (complete upon first delivery)
USER MANUAL
Explain the importance of reading it and understanding all the information. Highlight the sections on safety
and maintenance practises.
WARRANTY REGISTRATION CARD
Complete the necessary information and provide the customer with a copy.
HANDLING
Explain how to properly handle the vehicle.
WARNINGS
Explain the importance of the warnings to guarantee a long “life” for the vehicle.
KEYS
Deliver the complete set. Advise them to make a backup set.
FIRST INSPECTION
Explain that an inspection after 1,000 km is important.
PERIODICAL MAINTENANCE
Explain the need for periodical maintenance and state that failure to comply with guidelines for check-up
and visiting the shop is grounds for “Loss of Vehicle Warranty”.

MRT 125 LC 9
INSPECTION PRIOR TO DELIVERY (Adjustments)
General appearance .....................................................................................................................
Engine
- Engine oil level ............................................................................................................................
- Emptying the carburettor float chamber .....................................................................................
Chassis
- No fuel leaks in: Tank output, fuel tap, and supply lines .......................................................................
- Front and rear brake - Drain, if necessary .............................................................................................
- Coolant level, if applicable .....................................................................................................................
- Front, rear mudguard and attachment elements ....................................................................................
- Wiring of electrical installation around the steering column ...................................................................
- Alignment of front, rear wheels, and tightening torque of wheel axles ...................................................
- Spokes of front and rear wheels .............................................................................................................
- Tyre pressure ..........................................................................................................................................
- Chain tension
................................................................................................................................
Checking the equipment
- Accelerator works and has free play. Adjust if necessary ..........................................................
- Degrease both brake discs .........................................................................................................
- Battery charged and terminals greased .....................................................................................
- Block steering or anti-theft block ................................................................................................
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MRT 125 LC10
- Electric start-up and kick starter (depending on model) engine operation ................................
- General condition of front and rear suspension ..........................................................................
- Clutch cable properly adjusted ...................................................................................................
- Operation of fuel cap closure ......................................................................................................
- General inspection of nuts and screws: Callipers/discs, transmission/pinions, wheel nuts, tilt,
engine mounts, exhaust system, shock absorber, gear selector, brake pedal/levers, manifold
nuts, etc. ........................................................................................................................................
Fuel tank
- Check that the tank is not in contact with the frame ...................................................................
Driving components
- The digital instrument dashboard checks itself when the ignition is turned on (depending on
the model) .....................................................................................................................................
- Adjusting the headlight height ....................................................................................................
- Brake light when pressing brake levers LH and RH ...................................................................
- Front, rear blinkers and mounting clips ......................................................................................
- Horn operation ............................................................................................................................
ON-ROAD TEST, at least 10 km
- Engine and gearbox operation ...................................................................................................
- Grip on road and suspensions ....................................................................................................
- Braking and ABS operation (if installed) .....................................................................................
- No abnormal sounds ...................................................................................................................
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MRT 125 LC 11
AFTER ON-ROAD TEST
- Carburettor needle, adjust if necessary (if a carburation model) ...............................................
- Coolant leaks ..............................................................................................................................
- Fuel system, including hoses, clips, and all associated parts where leaks may appear ...........
- Check breakdown codes with diagnostic tool and delete them if applicable (depending on
the model) .....................................................................................................................................
CHECKING FINAL APPEARANCE ...............................................................................................
Date
Manufacturer signature
.................................
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MRT 125 LC12
TECHNICAL INFO
GENERAL INFORMATION ENDURO / SUPERMOTARD
Fuel
Oil filter
Oil pump
Water pump
Spark plug - Spark area
Unleaded petrol E5
Paper
Mechanical
Single-suction centrifugal pump
NGK/CR8E (0.6-0.7 mm (0.028-0.031”)))
Distance between axles
Length
Height
Width
Saddle height
Dry weight
Fuel tank
1.405 mm
2.148 mm
1.165 mm
800 mm
896 mm
112 Kg
6 L
1.405 mm
2.148 mm
1.165 mm
800 mm
870 mm
112 Kg
6 L
SIZES ENDURO SUPERMOTARD

MRT 125 LC 13
CHASSIS ENDURO SUPERMOTARD
Chassis
Front suspension
Rear suspension
Front tyre
Rear tyre
Front brake
Rear brake
High-resistance steel perimeter twin spar Removable rear sub-chassis
Fork Ø37 mm
Mono-shock shock absorber
Ø260 mm disc
Ø200 mm disc
ENGINE ENDURO / SUPERMOTARD
Type
Diameter x Span
Shift
Cooling
Start-up
Lubrication
Oil type
Amount of oil
Without replacing oil filter ensemble
With replacement of the oil filter
4t - 125 c.c. 4 Injection Valves
58 x 47 mm
6-Speed. Foot shifter
Water
Electric
Flooded body
10W40 GRO
0,95 I (1,00 US qt) (0,84 Imp. qt)
1,00 I(1,06 US qt)(0,88 Imp. qt)
80/90-21”
110/80-18”
100/80-17”
130/70-17”

MRT 125 LC14
Engine identification number
This is the number (1) that is marked on the bottom of the
engine’s left crankcase half.
LOCATION OF SERIAL NUMBERS
Chassis identification number
This is the number (1) that is die-cut on the right of the
steering tube.
1
1

MRT 125 LC 15
Builder label
Your RIEJU has an identification plate (1) with details
on: manufacturer, frame number, approval number, and
sound emissions level.
The frame number is also die-cut on the right side of the
steering tube.
1

MRT 125 LC16
MAIN VEHICLE ELEMENTS
6- Rear brake disc
7- Rear brake lever
8- Exhaust
9- Front blinkers
10- Left rear-view mirror
1- Rear blinkers
2- Saddle
3- Gas grip
4- Right rear-view mirror
5- Front headlight
11- E5 fuel tank cap
12- Plate holder
13- Front brake disc
14- Front suspension
15- Engine
16- Gearshift lever
17- Kickstand
18- Transmission chain
1
6713 14 15
816 17 18
459
12
10 11
23

MRT 125 LC 17
19- Clutch lever
20- Lock
21- Front brake lever
22- Left grip
23- Light/steering/horn controls
24- Start-up controls
25- Gas grip
2119 20
2422 2523

MRT 125 LC18
CLUTCH LEVER
The clutch lever is located to the left of the handle.
To activate it, press the lever toward the grip.
FRONT BRAKE LEVER
The front brake lever is on the right of the handle.
To activate the brake, press the lever toward the grip.

MRT 125 LC 19
HANDLEBAR SWITCHES
Blinker switch
There are three positions:
A- Deactivated in the central position.
B- In the right-hand position when you must turn
to the right.
C- In the left-hand position when you must turn
to the left.
Ensure that the button always returns to its cen-
tral position.
TIP: After turning, do not forget to put the switch in its central position by pressing the button.
A
B
C

MRT 125 LC20
Horn button
Activate the button to honk the horn (D).
Light switch
It has two positions:
In the bottom position, the light is set to low
beam (E).
In the upper position, the light is set to high
beam (F).
Remember that it is forbidden to use loud noise
signals for reasons not permitted by regulations. D
E
F