Beta EVO 2T User guide

1GB
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.
Code 007440240 000

2
GB
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
3GB
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......................................................18
CHAPTER 2 OPERATION .................................................................. 19
Main parts ..........................................................................................20
Checks before and after use.................................................................. 24
Breaking in..........................................................................................24
Fuelling............................................................................................... 25
Startup................................................................................................ 26
Engine shut-down.................................................................................26
CHAPTER 3 ADJUSTMENTS..............................................................27
Key to symbols.....................................................................................28
Brakes ................................................................................................28
Clutch.................................................................................................29
Adjustment of gas clearance.................................................................. 29
Accelerator .........................................................................................30
Handlebar adjustment .......................................................................... 30
Adjusting fork ......................................................................................30
Shock absorber....................................................................................31
Suspension adjustment according to the motorcyclist’s weight .................... 32
CHAPTER 4 CHECKS AND MAINTENANCE .....................................33
Key to symbols.....................................................................................34
Gear oil.............................................................................................. 34
Coolant ..............................................................................................35
Air filter ..............................................................................................37
Spark plug ..........................................................................................39
Carburetor ..........................................................................................40
Front Brake.......................................................................................... 42
Rear brake ..........................................................................................44

CONTENTS
4
GB
Clutch control ......................................................................................47
Check of steering gear..........................................................................49
Oil fork............................................................................................... 50
Tyres...................................................................................................54
Chain .................................................................................................55
Headlight............................................................................................ 57
Rear tail light....................................................................................... 58
Cleaning the vehicle............................................................................. 59
Prolonged inactivity.............................................................................. 60
Scheduled maintenance vehicle ............................................................61
Tightening torque overview ................................................................... 62
CHAPTER 5 TROUBLESHOOTING ....................................................61
Troubleshooting ...................................................................................62

5GB
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

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GB
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
7GB
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
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 homologated version.............................................14
Legend electrical diagram homologated version..................................15
Electrical diagram race version ......................................................... 16
Legend electrical diagram race version .............................................. 17
Recommended lubricants and liquids......................................................18
CHAPTER 1 GENERAL INFORMATION

1
GENERAL INFORMATION
8
GB
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.
A
B

1
GENERAL INFORMATION
9GB
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
14
3
12
4
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
7
2
1
16
6
5
13
8
19
17
18
11
10 15 9

1
GENERAL INFORMATION
10
GB
SPECIFICATIONS
WEIGHT
Version EVO 125 EVO 200 EVO 250 EVO 300
Dry weight [kg] 67.5 68.5 68.5 68.5
Front [kg] 33.75 34.25 34.25 34.25
Rear [kg] 33.75 34.25 34.25 34.25
VEHICLE DIMENSIONS
maximum length ....................................................................... 1990 mm
maximum width .......................................................................... 850 mm
wheelbase ............................................................................... 1305 mm
maximum height ....................................................................... 1115 mm
ground clearance ....................................................................... 310 mm
saddle height ............................................................................. 660 mm
TYRES
CAPACITIES
fuel tank .......................................................................................2.8 litri
including reserve ...........................................................................0.5 litri
coolant circuit:
Version EVO 125 EVO 200 EVO 250 EVO 300
With dry circuit [ml] 630 585 530 530
With circuit emptied [ml] 530 485 420 420
gear oil ........................................................................................550 ml
Dimensions Pressure [Bar]
Front tyre Rear tyre Front tyre Rear tyre
2.75 - 21 4.00 - 18 0.4 ÷ 0.5 0.3 ÷ 0.4

1
GENERAL INFORMATION
11 GB
FRONT SUSPENSION
Version EVO 125 EVO 200 EVO 250 EVO 300
Wheel
excursion
[mm]
166 166 166 166
right
fork leg
left
fork leg
right
fork leg
left
fork leg
right
fork leg
left
fork leg
right
fork leg
left
fork leg
K spring
[N/mm] X 7.65 X 7.65 X 7.65 X 7.65
Oil type Shell Tellus S2 V32 SAE 6,1
Oil level
[mm] (edge
rod with fork
compressed)
65 125 65 125 65 125 65 125
Register
spring
preload
Xfull
open Xfull open Xfull open Xfull open
Click in
extension
full
open Xfull open Xfull open Xfull open X
REAR SUSPENSION
Version EVO 125 EVO 200 EVO 250 EVO 300
k spring 70N/mm 70N/mm 70N/mm 70N/mm
precharge (spring in its seat)
[mm]
126,5 126,5 126,5 126,5
Oil type oil titan SAF 5045 Eu 137 RED
Click in extension 3.5 from
fully closed
3.5 from
fully closed
3.5 from
fully closed
3.5 from
fully closed
FRONT BRAKE
disk-type with hydraulic control Ø 185 mm
REAR BRAKE
disk-type with hydraulic control Ø 160 mm

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GENERAL INFORMATION
12
GB
ENGINE
Version EVO 125 EVO 200 EVO 250 EVO 300
Type Single-cylin-
der, 2-stroke
Single-cylin-
der, 2-stroke
Single-cylin-
der, 2-stroke
Single-cylin-
der, 2-stroke
Bore x stroke 54 x 54 64 x 60.5 72.5 x 60,5 79 x 60.5
Displacement [cm3] 123.6 194.6 249.7 296.5
Pressure ratio 14:1 11.8:1 8.9:1 10.17:1
Fuel system
carburetor
without mixer
( 1,5% )
carburetor
without mixer
( 1,5% )
carburetor
without mixer
( 1,5% )
carburetor
without mixer
( 1,5% )
CARBURETOR
EVO 125 EVO 200 EVO 250 EVO 300
Version
Certif. Competition* Certif. Competition* Certif. Competition* Certif. Competition*
Carbure-
tor type PWK 28 PWK 28 PWK 28 PWK 28
Main jet 112 130 x 125 42 125 102 125
Slow jet 35 55 x 48 105 48 42 48
Start jet 60 60 x 60 60 60 60 60
Needle JHL JJH x JJH LKK JJH JHQ JJH
Needle
position
(from top)
2° 4° x 4° 4° 4° 2° 4°
Air screw
turns
(from all
closed)
1
+
1/2
1
+
1/2 x2
+
1/2
3
+
1/2
2
+
1/2 1/2 2
+
1/2
Spacer YES NO x NO YES NO YES NO
*Such modification makes the vehicle non-compliant with the road regulations in
force. Its use must be limited to the sole private circuits which are closed to circulation.
Cooling system ......................................... forced liquid circulation by pump
Spark plug125-200 cc ........................................................... NGK BR7ES
Spark plug 250 cc ................................................................NGK BPR7ES
Spark plug 300 cc ...........................................................NGK IR GR7CI-8
Clutch..................................................................................wet, multidisc

1
GENERAL INFORMATION
13 GB
GEAR BOX
Version EVO 125 EVO 200 EVO 250 EVO 300
Primary drive 20/71 20/71 22/69 22/69
Gear ratio
1st gear 12/34 12/34 12/34 12/34
Gear ratio
2nd gear 14/32 14/32 14/32 14/32
Gear ratio
3rd gear 15/29 15/29 15/29 15/29
Gear ratio
4th gear 18/27 18/27 18/27 18/27
Gear ratio
5th gear 24/22 24/22 24/22 24/22
Gear ratio
6th gear 28/18 28/18 28/18 28/18
Secondary
drive
Certif.
Competi-
tion*
Certif.
Competi-
tion*
Certif.
Competi-
tion*
Certif.
Competi-
tion*
43/13 43/9 X 42/11 42/13 42/10 42/13 42/10
*Such modification makes the vehicle non-compliant with the road regulations
in force. Its use must be limited to the sole private circuits which are closed to
circulation.
Ignition 125-200 cc ...........................................electronic Hidria 12V-85W
Ignition 250-300 cc .........................................electronic Hidria 12V-110W

1
GENERAL INFORMATION
14
GB
ELECTRICAL SYSTEM
ELECTRICAL DIAGRAM HOMOLOGATED VERSION
Key to colours
Bi = White
Ve = Green
Ma= Brown
Vi = Purple
Bl = Blue
Ne = Black
Gi = Yellow
Rs = Red
Ar = Orange
Az = Sky-blue
Ro = Pink
Gr = Grey

1
GENERAL INFORMATION
15 GB
LEGEND ELECTRICAL DIAGRAM HOMOLOGATED VERSION
1) R.H. front turn signal with bulb 12V - 10W
2) Headlamp (double filament bulb) 12V-35/35W
3) Position light with bulb 12V - 5W
4) High beam indicator light with bulb 12V 12W
5) Dashboard indicator light with bulb 12V 1,3W
6) Turn signal indicator light with bulb 12V 1,3W
7) L.H. front turn signal with bulb 12V - 10W
8) Engine stop button
9) Horn button
10) Light switch
11) Turn signal switch
12) Stabilizer
13) Condenser 4700μF - 25V
14) Rear brake stop button
15) L.H. rear turn signal with bulb 12V - 10W
16) Tail light with bulb 12V - 5/21W
17) R.H. rear turn signal with bulb 12V - 10W
18) Switch for change mapping
19) Pick-up
20) Generator
21) H.T. coil
22) Electronic control unit
23) Regulator 12V
24) Thermal switch
25) Electrofan
26) Frame earth
27) Horn 12V
28) Front brake stop button

1
GENERAL INFORMATION
16
GB
ELECTRICAL DIAGRAM RACE VERSION
Key to colours
Bi = White
Ve = Green
Ma= Brown
Vi = Purple
Bl = Blue
Ne = Black
Gi = Yellow
Rs = Red
Ar = Orange
Az = Sky-blue
Ro = Pink
Gr = Grey

1
GENERAL INFORMATION
17 GB
LEGEND ELECTRICAL DIAGRAM RACE VERSION
1) Headlamp (double filament bulb) 12V-35/35W
2) Horn 12V
3) Horn button
4) Engine stop button
5) Switch for change mapping (yellow)
6) Light switch (black)
7) Tail light with bulb 12V - 3W
8) Generator
9) Pick-up
10) H.T. coil
11) Electronic control unit
12) Regulator 12V
13) Thermal switch
14) Electrofan
15) Frame earth

1
GENERAL INFORMATION
18
GB
RECOMMENDED LUBRICANTS AND LIQUIDS
For better operation and longer vehicle life, we advise you to use the products listed
in the following chart:
PRODUCT TYPE SPECIFICATIONS
OILMIXTURE LIQUI MOLY RACING SYNTH 2T
GEAR AND CLUTCH OIL LIQUI MOLY RACING 4T 10W-30
BRAKE OIL LIQUI MOLY BRAKE FLUID DOT4
CLUTCH ACTUATOR OIL LIQUI MOLY BRAKE FLUID DOT4
FORK OIL SHELL TELLUS S2 V32 - SAE 6.1
TIE ROD GREASE LIQUI MOLY SCHMIERFIXIX
LIQUID COOLANT LIQUI MOLY COOLANT READY MIX
RAF12 PLUS

2
OPERATION
19 GB
CHAPTER 2 OPERATION
CONTENTS
Main parts ..........................................................................................20
Fuel valve .......................................................................................20
Starter............................................................................................20
Clutch lever ....................................................................................21
LH switch........................................................................................21
RH switch .......................................................................................21
Front brake lever and gas control ...................................................... 22
Gearchange lever............................................................................22
Brake pedal....................................................................................22
Kick-start ........................................................................................22
Checks before and after use.................................................................. 24
Breaking in..........................................................................................24
Fuelling............................................................................................... 25
Startup................................................................................................ 26
Engine shut-down.................................................................................26

2
OPERATION
20
GB
MAIN PARTS
FUEL VALVE
Fuel valve has three positions:
OFF: fuel supply closed. Fuel cannot pass
from the tank to the carburettor.
ON: fuel supply enabled. Fuel flows from
the tank to the carburettor. The tank empties
until it reaches the reserve level.
RES: reserve fuel supply. Fuel flows from
the tank to the carburettor and the tank
empties completely.
Attention!
During competition use or extreme “trial
zone” is advising to position the fuel tap on
“RES” to guarantee an optimal fuel supply
in all condition use.
STARTER
The starter lever is located on the carbu-
rettor.
To operate the lever pull up.