Beta evo 125SS 2022 User manual

BETAUSA.COM
2-Stroke
125 / 250 / 300 / 300SS
2022
OWNERS MANUAL

1EN
EVO 2T
Thanks for you preference, and have a good time! This hand-
book contains the information you need to properly operate and
maintain your motorcycle.
The data, specifications and images shown in this manual does not constitute
an engagement on the part of BETAMOTOR S.p.A. BETAMOTOR reserves
the right to make any changes and improvements to its models at any mo-
ment and without notice.

2
EN
IMPORTANT
We recommend you to check all the tightenings after the first one
or two hours’ ride over rough ground. Special attention should
be paid to the following parts:
•rear sprocket
•ensure that the footrests are properly fixed
•front/rear brake levers/calipers/discs
•check that the plastics are properly fastened
•engine bolts
•shock absorber bolts/swingarm
•wheel hubs/spokes
•rear frame
•pipe connections
•tensioning the chain
IMPORTANT
In the event of interventions on the vehicle, contact Betamotor
after-sales service.

CONTENTS
3EN
TABLE OF CONTENTS
Operating instructions............................................................................. 5
Symbols................................................................................................5
Riding safety ......................................................................................... 6
CHAPTER 1 GENERAL INFORMATION ............................................7
Vehicle identification data .......................................................................8
Familiarizing with the vehicle...................................................................9
Specifications ......................................................................................10
Electrical system...................................................................................14
Recommended lubricants and liquids......................................................16
CHAPTER 2 OPERATION.................................................................17
Main parts .......................................................................................... 18
Checks before and after use..................................................................22
Breaking in..........................................................................................22
Fuelling............................................................................................... 23
Startup................................................................................................ 24
Engine shut-down................................................................................. 24
CHAPTER 3 ADJUSTMENTS ............................................................25
Key to symbols.....................................................................................26
Brakes ................................................................................................26
Clutch.................................................................................................27
Adjustment of gas clearance..................................................................27
Accelerator .........................................................................................28
Handlebar adjustment .......................................................................... 28
Adjusting fork ......................................................................................28
Shock absorber....................................................................................29
Suspension adjustment according to the motorcyclist’s weight .................... 30
CHAPTER 4 CHECKS AND MAINTENANCE ...................................31
Key to symbols.....................................................................................32
Gear oil.............................................................................................. 32
Coolant ..............................................................................................33
Air filter ..............................................................................................35
Spark plug ..........................................................................................37
Carburetor ..........................................................................................38
Front Brake.......................................................................................... 40
Rear brake ..........................................................................................42

CONTENTS
4
EN
Clutch control ......................................................................................45
Check of steering gear..........................................................................47
Oil fork............................................................................................... 48
Tyres...................................................................................................51
Chain .................................................................................................52
Headlight............................................................................................ 53
Rear tail light....................................................................................... 53
Cleaning the vehicle............................................................................. 54
Prolonged inactivity.............................................................................. 55
Scheduled maintenance vehicle ............................................................56
Tightening torque overview ...................................................................57
CHAPTER 5 REMOVING AND INSTALLING SUPERSTRUCTURES 59
Removing and installing saddle-mudguard assembly.................................60
CHAPTER 6 TROUBLESHOOTING ..................................................61
Troubleshooting ...................................................................................62

5EN
OPERATING INSTRUCTIONS
•The vehicle must be accompanied by: number-plate, registration document, tax
disc and insurance.
•Changes to the engine or other parts is punishable by law with severe penalties,
including the confiscation of the vehicle.
•Do not sit on the vehicle stand.
•Do not start the engine in a closed place.
WARNING
Any modifications and tampering with the vehicle during the warranty period exempt
the manufacturer from all responsibility and invalidate warranty.
SYMBOLS
SAFETY/ATTENTION
Failure to respect information marked with this symbol can entail a personal
hazard.
INTEGRITY OF THE VEHICLE
Failure to respect information marked with this symbol can entail serious damage
to the vehicle and termination of the warranty.
FLAMMABLE LIQUID HAZARD
Read the use and maintenance manual carefully.
MANDATORY TO WEAR PROTECTIVE CLOTHING
Use of the vehicle is subject to wearing specific protective clothing and safety
footwear.
PROTECTIVE GLOVES MANDATORY
To perform the operations described, it is mandatory to wear protective gloves .
FORBIDDEN TO USE NAKED FLAMES OR POSSIBLE UNCONTROLLED
IGNITION SOURCES
NO SMOKING
DO NOT USE MOBILE PHONE
CORROSIVE SUBSTANCES HAZARD
Liquids marked with this symbol are highly corrosive: handle with care
POISONING HAZARD

6
EN
RIDING SAFETY
•Observe the Highway Code.
•Always wear approved personal safety equipment.
•Always ride with the low beam on.
•Always keep the crash helmet visor clean.
•Avoid wearing garments with hanging ends.
•Do not keep sharp or brittle objects in your pockets while riding.
•Properly adjust the rearview mirrors.
•Always ride in a seated position, with both hands on the handlebars and both
feet on the footrests.
•Never ride abreast with other vehicles.
•Do not tow and avoid being towed by other vehicles.
•Always keep a safe distance from other vehicles.
•Do not start off while the vehicle is on its stand.
•Avoid swaying and wheelies as they are extremely dangerous for your own and
other people’s safety as well as for your vehicle.
•Always apply both brakes on dry roads with no gravel and sand. Using one brake
may be dangerous and cause uncontrolled skidding.
•To reduce the braking distance, always apply both brakes.
•On wet roads and in off-road riding, drive with care and at moderate speed.
Take special care in applying the brakes.

1
GENERAL INFORMATION
7EN
CONTENTS
Vehicle identification data .......................................................................8
Frame identification ...........................................................................8
Engine identification ..........................................................................8
Familiarizing with the vehicle...................................................................9
Main parts........................................................................................ 9
Specifications ......................................................................................10
Weight...........................................................................................10
Vehicle dimensions .......................................................................... 10
Tyres.............................................................................................. 10
Wheels ..........................................................................................10
Capacities......................................................................................10
Front suspension..............................................................................11
Rear suspension ..............................................................................11
Front brake..................................................................................... 11
Rear brake ..................................................................................... 11
Engine ...........................................................................................12
Carburetor......................................................................................12
Gear box .......................................................................................13
Electrical system...................................................................................14
Electrical diagram ...........................................................................14
Legend electrical diagram ................................................................ 15
Recommended lubricants and liquids......................................................16
CHAPTER 1 GENERAL INFORMATION

1
GENERAL INFORMATION
8
EN
VEHICLE IDENTIFICATION
DATA
FRAME IDENTIFICATION
Frame identification data Aare stamped
on the right side of the steering head tube.
ENGINE IDENTIFICATION
Engine identification data Bare stamped
in the area shown in the picture.
WARNING:
Tampering with the identification numbers
is severely punished by law.
B
A

1
GENERAL INFORMATION
9EN
FAMILIARIZING WITH THE VEHICLE
MAIN PARTS
1 Fuel tank
2 Tank cap
3 Silencer
4 Rear shock absorber
5 Headlight
6 Rear light
7 Side stand
8 Fork
9 Rider’s footrests
10 Lower bumper
11 Engine
12 Front mudguard
13 Rear mudguard
14 Kick-start
15 Gear lever
16 Rear brake lever
17 Front brake lever
18 Clutch lever
19 Throttle
14
3
12
47
2
1
16
6
5
13
8
19
17
18
11
10 15 9