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

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①Front wheel, ②Headlight, ③Air filter, ④Seat, ⑤Rear license light, ⑥Rear light, ⑦Muffler, Rear ,
⑧Rear chain ⑨Side stand, ⑩Shift pedal, ⑪Water tank, ⑫Front brake caliper.

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①Rear light, ② Throttle valve， ③ Cap,fuel tank, ④ Front brake disc, ⑤ Rear brake pedal,
⑥ oil cap, ⑦ Rear wheel, ⑧ Rear brake disc

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NOTE
Improper loading, installation, use of accessories or modification of your motorcycle may
result in an unsafe riding condition. Before you ride the motorcycle, make sure that the
motorcycle is not overloaded and you have followed these instructions.
BULLIT parts and accessories have been specially designed for BULLIT motorcycles.
BULLIT strongly recommends that all parts and accessories you use are genuine
BULLIT components.
LOAD AND ACCESSORIES INFORMATION
Always use BULLIT genuine parts and accessories. Non-genuine parts or accessories, improper
installation or use of accessories, or motorcycle modification, will void motorcycle warranty, can negatively
affect performance and even be illegal. In selecting and using parts or accessories, and in loading motorcycle,
you are personally responsible for your own safety and the safety of person involved.
Motorcycle is sensitive to the changes in weight and aerodynamic forces; you must take extreme care in
carrying cargoes, passengers and/or in fitting of additional accessories.
WARNING

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Important Information before Ride
1. Any driver and/or passenger should be completely familiar with motorcycle operation. The passenger can
affect control of motorcycle by improper positioning during turning corner or sudden movements. So it’s
important for passenger to sit still while the motorcycle is in motion and not interfere with the operation of
motorcycle. Do not carry animals on the motorcycle.
2. You should instruct any passenger before riding to keep his/her feet on the passenger footpegsand hold on
the driver or grab rail. Do not carry a passenger unless he or she is tall enough to reachfootpegs.
3. All baggage should be carried as low as possible to reduce the effect on the motorcycle gravity. Baggage
weight should also be distributed equally on both sides of motorcycle. Avoid carrying baggage that extends
beyond the rear of the motorcycle.
4. Do not carry heavy or bulky items on a luggage rack. They are designed for light items, and overloading can
affect handling due to changes of weight distribution and aerodynamic forces.
5. Do not install accessories or carry baggage that impairs the performance of motorcycle. Make sure that you
have not adversely affected any lighting components, road clearance, banking capability (i.e., lean angle),
control operation, wheel travel, front fork movement, or any other aspect of motorcycle’s operation.
6. Weight attached to handlebar or front fork will increase the mass of steering and can result in unsafe riding
condition.

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7. Fairings, windshield, backrest and any other large items have the capability of adversely affecting stability and
handling of the motorcycle. Not only because of their weight, but also aerodynamic forces acting on these
surfaces while motorcycle is in operation. Poorly designed or installed items can result in unsafe riding condition.
8. The motorcycle cannot be modified to triple-wheel motorcycle and intended to be used for towing any trailer or
other vehicle. BULLIT cannot assume responsibility for the results of such unintended use of the motorcycle.
Furthermore, any adverse effects on motorcycle components caused by the use of such accessories will not be
remedied under warranty.
Maximum load：Not exceed 150kg (Including weight of rider, baggage and accessories).

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Meter Instruments
①Tachometer ②Turn indicator, LH ③Turn indicator, RH ④High-beam indicator ⑤Fuel diaplay
⑥EFI fail indicator ⑦ABS indicator ⑧Neutral indicator ⑨Mileage display ⑩KM/H ○
11
PM/H

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When “ ” flashes，please fill fuel in order to protect fuel pump. Start engine after full-filled.
Tachometer ①
The tachometer shows the engine speed in revolutions per minute.
When ignition key is turned to “ ” position, the tachometer will perform self-checking. If the tachometer does
not work correctly, have it inspected by an authorized B UL LIT dealer.
Turn Indicator, LH ②
When the turn switch is pushed to“ ”, left turn signal indicator flashes.
Turn Indicator, RH ③
When the turn switch is pushed to“ ”, right turn signal indicator flashes.
High-Beam Indicator ④
When light switch turns to “”
position and dimmer switch turns to “ ”position，then high-beam indicator
is on.
Fuel Display ⑤
Indicates the total amount of fuel is 15L. about 3L fuel left, refuel as soon as possible..
WARNING

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EFI Fail Indicator ⑥
This indicator flashes when vehicle circuit fails.
ABS Indicator ⑦
When motorcycle is stopped with ABS works normally，this light is twinkling; The light is off when motorcycle is
running. If vehicle fails, the light goes on；
Neutral Indicator⑧
Light up when the transmission in Neutral.
Mileage display ⑨
Odometer and tripmeter represent total mileage and period mileage ；
KM/H ⑩
PM/H ○
11

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Key
Key can be used as ignition switch/steering lock, and fuel tank lock. Remove the spare key and store in a safe
place.
If both keys are lost, the complete lock assembly must be replaced.
Ignition Switch/Steering Lock
This ignition switch has “ ”、“ ”、“ ” positions, etc.
：Engine can’t be started. Electrical circuits are off.
：Engine can be started. Electrical equipment can be used.
：Steering is locked. Electrical circuits are off. A Off B On
C Steering Locked
Signal light, tail light and license light are ON when the
ignition key in the position. When headlight is on, it’s
better to run the engine. Otherwise, prolonged lighting can
cause battery discharged, even damaged.
WARNING

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Handlebar Switches, RH
①Engine stop switch ②Light switch ③Warning button