Baja 49CC DIRT RUNNER Owner's Manual
49cc Dirt Runner
Read this manual carefully. It contains important safety information.
Children under the age of 16 should be supervised by a responsible adult.
OWNER’S MANUAL
Minimum Recommended
Age Requirement
49cc Model: 16
In the Province of Quebec Canada the
minimum operator age shall be 14+ as
specied by the Quebec Off-Highway
Vehicles Act.
Always wear a helmet; It could save your Life!
Do not remove this operator’s manual from this vehicle.
Please obtain, review, and follow provincial / municipal government acts and regulations pertaining to owning and operating an off-road vehicle.
I
Congratulations on your purchase of the Baja
Motorsports DR50 Dirt Bike.
Your bike is warranted to be free of manufacturing defects in the material of
workmanship for a period of 90 days form the date of purchase. During the warranty
period BAJA MOTORSPORTS, LLC will at its option, repair, provide replacement parts
or replace your Baja Motorsports 90cc ATV at no charge. This warranty does not cover
normal wear items or damage caused by neglect or misuse of the product.
Engine Warranty – 90 days
Frame Warranty – 90 days
Warranty is void if:
Frame is bent or broken due to abuse
If wheels are bent or broken
Fender bent or broken due to abuse
Any sign of impact, accident, jumping, spin-outs or roll over.
BAJA MOTORSPORTS, LLC is not liable for any damage claim or liability claim person
or otherwise resulting from the operation of this product in any way.
Should you experience a problem or need to return your Baja Motorsports DR 50 for
repair, please call the BAJA MOTORSPORTS customer service department TOLL FREE
at 1-888-863-BAJA (2252) between the house of 7am and 5pm Monday thru Friday PST
and Saturday 8am to 4pm PST. During DST hours change to MT. You will be instructed
A COPY OF THE SALES RECEIPT IS REQUIRED.
how to proceed.
II
!
WARNING
This manual should be considered as a permanent
part of the vehicle and should remain with the vehicle
when resold or otherwise transferred to a new user
or operator. The manual contains important safety
information and instructions which should be read
carefully before operating the vehicle. All operators
should obtain, review, and follow provincial and
municipal government acts and regulations pertaining
to owning and operating an off-road vehicle. Children
under the age of 16 should be supervised by a
responsible adult.
III
Table of Contents
SAFE OPERATION......................................................................... 3
SAFETY GEAR .............................................................................. 4
MODIFICATION OF VEHICLE........................................................ 4
MAIN DATA .................................................................................... 5
PARTS & SUBASSEMBLIES ......................................................... 6
OPERATION .................................................................................. 8
FUEL COCK............................................................................8
ENGINE STARTING................................................................. 9
BREAKING IN THE ENGINE ...................................................10
SWITCHES ON THE RIGHT HANDLEBAR ............................. 11
GEAR SHIFTING ..................................................................... 12
CHECK-UPS, ADJUSTMENT AND MAINTENANCE..................... 13
CHANGING THE OIL .............................................................. 14
CHECK-UP OF SPARK PLUG ................................................14
CHECKING & CLEANING THE AIR FILTER ............................ 15
ADJUSTING THE THROTTLE CABLE .................................... 16
ADJUSTING THE CARBURETOR........................................... 16
ADJUSTING THE AIR VALVE GAP.......................................... 17
BRAKE CHECKING................................................................. 17
ADJUSTMENT OF FRONT BRAKE......................................... 18
ADJUSTMENT OF REAR BRAKE ........................................... 19
ADJUSTMENT OF CHAIN ...................................................... 19
GREASING PROCEDURES TO THE DRIVING CHAIN ........... 20
VEHICLE WASHING................................................................ 21
INSTRUCTIONS FOR STORAGE............................................ 22
RESUMPTION OF SERVICE AFTER STORAGE ..................... 23
TABLE AND TORQUE OF FASTNERS .................................... 23
RESUMPTION OF SERVICE ................................................... 24
MAINTENANCE REOUTINE DIAGRAM .................................. 24
ELECTRICAL PRINCIPLE DIAGRAM...................................... 26
1
Please read this manual and follow all instructions carefully. To emphasize the special
information, the symbol and the words WARNING or CAUTION have some special
meanings. Pay great attention to the messages.
WARNING
Indicates a potential hazard that could
result in death or injury.
CAUTION
Indicates a potential hazard that could
result in vehicle damage.
NOTE: Indicating special information which is to make maintenance easier or
instructions clearer.
WARNING and CAUTION are arranged like this:
WARNING-or-CAUTION
The rst part will identify a POTENTIAL HAZARD.
The second part will describe WHAT COULD
HAPPEN if you ignore the WARNING or
CAUTION.
The third part will describe HOW TO AVOID THE
HAZARD.
This user’s manual contains important safety and maintenance information. Read it
carefully before riding. Failing to follow the warnings contained in this manual could
result in INJURY or DEATH.
It is important that this manual remain with the vehicle when you transfer it to another
user or owner.
All information, illustrations, photographs and specications contained in this manual
are based on the latest product information available at the time of publication. Due
to improvements or other changes, there will be some discrepancies in this manual.
We reserve the right to make product changes at any time, without notice and without
incurring any obligation to make the same or similar changes to the vehicle previously
built or sold.
2
SAFE OPERATION
Rules for Safe Operation
· A pre-operation check must be conducted, before starting the engine, insure safety,
prevent mishaps, and damage to components.
· It is strongly suggested that all operators take a certied motorcycle rider’s course
prior to operating the vehicle.
· Full attention is required during driving; paying close attention to the following
points to avoid any injury to you by other motorized vehicles:
· Do not drive too close to other vehicles.
· Never carry a passenger. This dirt bike is for one operator only
· Never operate this dirt bike at night. Night is dened as the period of time 30
minutes before sunset to 30 minutes after sunrise.
· Driving at high speeds is the cause of many accidents; do not drive at a speed that
the actual situation does not permit.
· This user’s manual contains important safety and maintenance information. Read it
carefully before riding. Failing to follow the warnings contained in this manual could
result in INJURY or DEATH.
· It is important that this manual remain with the vehicle when you transfer it to
another user or owner.
· All information, illustrations, photographs and specications contained in
this manual are based on the latest product information available at the time
of publication. Due to improvements or other changes, there will be some
discrepancies in this manual. We reserve the right to make product changes at
any time, without notice and without incurring any obligation to make the same or
similar changes to the vehicle previously built or sold
· Always avoid operating an this dirt bike on paved surfaces, including; sidewalks,
paths, parking lots, driveways, streets, roads, and highways. Never operated this or
any Off-Road Vehicle on a public street, road or highway where motor vehicles are
in operation.
3
SAFETY GEAR
1. Never operate this dirt bike without wearing a DOT approved motorcycle helmet
which ts properly. Operators should also wear eye protection (goggles or face
shield), gloves, boots, long-sleeved shirt or jacket, and long pants.
2. Loose clothes are not suitable for motorcycle driving or riding as they may get
caught on the operating lever, kick lever, footrest or wheel, resulting in danger.
MODIFICATION OF THE VEHICLE
CAUTION
Never perform any unauthorized modications to this vehicle. Only use original
replacement part which can be obtained through Baja Motorsports 888-863-2252.
4
MAIN DATA
Description Data Description Data
Overall length 1625mm Cylinder bore x
39mm X 41.4mm
stroke
Overall width 690mm Compression ratio 8.8 : 1
Overall height 1085mm Output, max 2.0KW/7500rpm
Wheelbase 1055mm Torque, max 2.5N.m/6000r/min
Dead weight 65kg Idling speed 1500r/min ± 150r/min
Payload 60kg Displacement of
49mL
cylinder
Front wheel 2.50-14-4PR Spark plug NHSP LD A7RTC
Rear wheel 3.00-12-4PR Spark plug gap 0.6 ~ 0.7mm
Speed, max ≥ 70km/h Gap of air valve Intake valve: 0.05mm
Braking distance ≤ 7m(30km/h) Gap of air valve Exhaust valve:
0.05mm
Climb ability ≥ 18° Ground clearance 140mm
Capacity of
4.9L Ignition means CDI
gasoline tank
Transmission Ratio
1st gear 3.272 2nd gear 1.937
3rd gear 1.350 4th gear 1.043
Transmission ratio of
sprocket
2.929
Primary transmission
ratio
3.722
5
PARTS & SUBASSEMBLIES
Front brake lever
Throttle twist grip
Fuel tank cover
6
Front Shock Absorber
Front Wheel
Rear Wheel
Gear Shifting
Pedal
Fuel Cock
Exhaust Silencer
Engine Number
Seat Cushion
Side Stand
Rear Fork
Kick Lever Rear Braking Pedal
7
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