Bullit HERO 250 2021 User manual

Owner's Manual HERO 250

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Important Cautions
About running-in of a motorcycle
The first 1000 km operation is very important in the entire service life of a motorcycle. A correct
running-in can guarantee both the longest service life and the best performance of the vehicle. Running-in
can polish machined surfaces and form smooth engagement.
Careful and patient running-in can make the motorcycle stable in driving and give a full play to its
excellent performance. It is important not to do any operation that may cause overheat to engine
components.
For specific running-in method, please refer to "Running-in of a new vehicle".
Please carefully read the manual and strictly observe all instructions or descriptions.
Special attention shall be paid to the contents emphasized with the terms of "warning" "caution" and
"note", etc.
Warning……It concerns with personal safety. Ignoring it may result in accident.
Precaution……It refers to operational methods that must be followed or measures that should be
taken, so as to prevent damage.
Note……It refers to special explanations to make maintenance or important descriptions more explicit.
The operation manual shall be deemed as a permanent document of the motorcycle. When transfer
the vehicle to others, the instruction manual shall also be transferred to the new owner.

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CONTENT
Vin and engine serial number……………………6
Specifications.......................................................7
Location of Parts................................................10
Load and Accessories Information.....................13
Important Information .......................................14
Meter Instruments ............................................16
Tachometer、High-Beam Indicator.................. 17
FEI,ABS , Mileage display…………………………18
Key、Ignition Switch/Steering Lock .................19
Handlebar Switches, RH.................................... 20
Engine Stop Switch............................................ 21
Light Switch .......................................................21
Handlebar Switches, LH ....................................22
Dimmer Switch
……………………………………23
Fuel Tank Cap..................................................24
Fuel Tank...........................................................25
Fuel Requirement ..............................................25
Octane Rating....................................................25
Side Stand、Seat Lock ....................................26
Rear View Mirror…………………………………27
Break-in............................................................28
How to Ride This Motocycle.............................29
Starting the Engine ............................................29
Driving preparation.............................................31

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Shifting Gears ....................................................32
ABS Braking ...................................................... 32
Parking …………………………………………..34
Catalytic Converter........................................... 35
Fuel Evaporation System .................................36
Safe Operation................................................. 37
Safe Riding Technique ..................................... 37
Pre-riding Inspection........................................ 38
Additional Cautions for High Speed Operation…40
Maintenance and Adjustment........................... 41
Periodic Maintenance Chart............................. 41
Engine Oil ........................................................ 51
Cooling System ................................................ 56
Spark Plug........................................................61
Air System........................................................62
Valve Clearance...............................................63
Air Filter............................................................63
Throttle Control System....................................65
Throttle Body、Clutch ......................................67
Drive Chain ......................................................68
Brake................................................................73
Front Fork.........................................................79
Rear Shock Absorber .......................................80
Wheels .............................................................81
Battery..............................................................85
Foot pedal ........................................................89

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Headlight Beam…………………………………..90
Front & Rear Turn Signal Light......................... 91
Fuses ...............................................................91
Cleaning Your Motorcycle ................................93
Storage ............................................................97
EFI Error Code Table ......................................99
ABS Error Code Table …………………………113
Wiring piagram .............................................. 117

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VIN AND ENGINE SERIAL NUMBER
Be sure to record below VIN number, engine serial number and name plate number for your maintenance
purposes. At the same time, keep spare key in a safe place. If two keys are missing, then you have to replace
lock assembly.
②
①
③
① Vehicle identification number:
② Name plate:
③ Engine serial number:

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Performance
SPECIFICATIONS
Max. Power 19.5kW/9000r/min
Max. Torque 22N·m/7500r/min
Min. turn radius 4.7m
Size
Length： 2040mm
Width： 915mm
Height： 1260mm
Wheel base:： 1465mm
Seat height： 810mm
Min. ground clearance： 250mm
Dry weight： 148kg
Engine
Type：One cylinder, 4-strokes, liquid-cooled, upright
Displacement： 249mL
Bore×Stoke： 72mm×61.2mm

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Compression ratio： 11.3:1
Starting system：Electric starter
Fuel supply：EFI (electronic fuel injection)
Ignition control：ECU
Lubricating system：Pressure pump/splash
Engine oil type: SAE10W-40/SJ
Coolant capacity：1100mL
Transmission
Transmission type： 6-speed, international standard gear
Clutch： Wet，multi disc, manually
Driving system：Chain drive
Primary reduction ratio：2.8
Final reduction ratio：2.857
Gear ratio 1
st 3.333
2
nd 2.118
3
rd 1.571

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4
th 1.304
5
th 1.115
6
th 0.963
Chassis
Tire size： Front：4.10-18 R18 Rim size：Front: MT 2.15×18
Rear：4.60-17 R17 Rear: MT 3.50×17
Capacity of fuel tank：15L
Electric components
Battery： 12V9Ah
Headlight：LED
Tail/Brake light： LED

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LOCATION OF PARTS
①Clutch lever ②Handlebar switches, LH ③Meter instruments ④Front brake fluid reservoir
⑤Handlebar switches, RH ⑥Front brake lever ⑦Throttle grip ⑧Ignition switch