Yukon Trail Dirt Hawk 20 User manual

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Read Instructions Before Using Your New E-bike
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DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
NOTICE!
NOTICE!NOTICE!
NOTICE!
Before using your new E-bike the first ti e,
Charge 6hours for Li-ion batteries and 8 hours for SLA(Sealed Lead Acid) batteries
Always recharge the battery before the power indicator shows no power.
Failure to follow these instructions voids any warranty, whether stated or i plied .
Before operating your E-bike
Warning!
This product does not conform to Federal Motor Vehicles Standards and
Is not intended for operation on public streets, roads or highways. Serious
injury can result from the unsafe operations of this vehicle.
This product is not designed to be jumped. If jumped, even from the curb,
The -bike Frame could break causing serious injury or death.
If jumped, the warranty is void.
Do not operate this product in traffic, on wet, frozen, oily or
Unpaved surfaces or under the influence of drugs and/or alcohol.
Avoid uneven surfaces, potholes, surface cracks and obstacles.
It is recommended that the rider wear leather gloves, kneepads
And leather boots. Always wear a DOT approved helmet.
Never carry passengers on your -bike.
Check your state and local laws governing the use
of motorized vehicles in your area.
Yukon Trail, Inc. is not responsible for your
Failure to comply with state and local ordinances
Relating to the use of the -bike.
Failure to follow these operation instructions
can result in serious injury or death.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Congratulations on your new purchase! Our service department is
dedicated to your satisfaction with 877.441.6999. For questions regarding
performance, assembly, operation, parts or return, contact the
Manufacturer directly by calling toll free
DO NOT RETURN TO STORE
877.441.6999.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Before You Ride
About this Manual
It is important for you to understand your ne bicycle. By reading this manual
before you go out on your first ride, you ill kno ho to get better
performance, comfort, and enjoyment from your ne bicycle.
It is also important that your first ride on your ne bicycle is taken in a
controlled environment, a ay from cars, obstacles, and other cyclists.
General Warning
Bicycles can be hazardous activity even under the best of circumstances.
Proper maintenance of your cycles is your responsibility as it helps reduce the
risk of injury. This manual contains many “Warnings” and “Cautions”
concerning the consequences of failure to maintain or inspect your bicycle.
Many of the arning and cautions say “you may lose control and fall.”
Because any fall can result in serious injury or even death, e do not repeat
the arning of possible injury or death henever the risk of falling is
mentioned.
A Special Note for Parents
It is a tragic fact that most bicycle accidents involve children. As a parent or
guardian, you bear the responsibility for the activities and safety of your
minor child. Among these responsibility are to make sure that the bicycle
hich your child is riding is properly fitted to the child; that is in good repair
and safe operating condition; that you and your child have learned,
understand and obey not only the local motor vehicle, bicycle, and traffic
la s, but also the common sense rules of safe and responsible bicycling , As a
parent, you should read this manual before letting your child ride the bicycle.
Please make sure that your child al ays ears and ANSI, ASTM, SNELL
approved helmet hen riding.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Safety Checklist
Before you ride, it is important to carry out the follo ing safety checks:
1. Brakes
Ensure front and rear brakes ork properly
Ensure brake shoe pads are not over orn and are correctly
position in relation o the rims.
Ensure brake control cables are lubricated, correctly adjusted
and display no obvious ear.
Ensure brake control levers are lubricated and tightly secured
to the handlebar.
2. Wheel and Tires
Ensure tires are inflated to ithin the recommended limit as
displayed on the tire side all
Ensure tires have tread and have no bulges or excessive ear.
Ensure rims run true and have no obvious obbles or kinks.
Ensure all heels spokes are tight and not broken.
Check that axle nuts are tight. If your bicycle is fitted ith
quick release axles, make sure locking levers are correctly
tensioned and in the closed position.
3. Steering
Ensure handlebar and stem are correctly adjusted and tightened,
and allo proper steering.
Ensure that the handlebars are set correctly in relation to the
forks and direction of travel.
Check that the headset locking mechanism is properly adjusted
and tightened.
If the bicycles is fitted ith handlebar end extensions, ensure
they are properly position and tightened.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
4. Chain
Ensure chain is oiled, clean and runs smoothly.
Extra care is required in et or dusty conditions.
5. Bearing
Ensure pedals are securely tightened to the cranks.
Check headset, heel bearings, pedals bearing and bottom
bracket bearings.
6. Cranks and Pedals
Ensure pedals are securely tightened to the cranks
Ensure cranks are secure to axle and are not bent.
7. Derailleurs
Check that front and rear mechanisms are adjusted and function
properly.
Ensure shift and brake levers are attached to the handlebar.
Ensure derailleur, shift levers and shift and brake cables are
properly lubricated.
8. Frame and Fork
Check that the frame and fork are not bent or broken
If either are bent or broken, they should be replaced.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
9. Accessories
Ensure that all reflectors are properly fitted and not obscured.
Ensure all other fittings on the bike are properly and securely
fastened, and functioning.
Ensure the rider is earing a helmet.
10. Motor Drive Assembly and Throttle
Ensure all motor drive components are correctly mounted and
functioning properly.
11. Battery Pack
Ensure the batteries are in good operation condition and kept
fully charged and properly secured and locked.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Helmets
It is strongly advised that a properly fitting, ANSL or SNELL approved, bicycle
safety helmet be orn at all times hen riding your bicycle. In addition, if
you are carrying a passenger on a child safety seat, they must also be earing
a helmet.
The correct helmet should:
-be comfortable
-be light eight
-have good ventilation
-fit correctly
-cover forehead
Always wear a properly fitted helmet which covers the forehead when
riding a bicycle. Many states require specific safety devices. It is your
responsibility to familiarize yourself with the law of the state where you
ride and to comply with all applicable laws, including properly equipping
yourself and your bikes as the law requires. Reflectors are important
safety devices which are designed as an integral part of your bicycle.
Federal regulations require every bicycle to be equipped with front, rear,
wheel, and pedal reflectors. Theses reflectors are designed to pick up and
reflect street lights and car lights in a way that helps you to be seen and
recognized as a moving bicyclist. Check reflectors and their mounting
brackets regularly to make sure they are clean, straight, unbroken and
securely mounted, Have your dealer replace damaged reflectors and
straighten or tighten and that are bent or broken.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Component List
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DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
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DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
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DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Battery Gauge
When the throttle or sensor is engaged (Po ering the motor) and the bicycle
is in motion, the LED’s on the battery gauge (on the throttle or separate unit)
indicate instantaneous line voltage as measured at the battery terminals- and
not the available energy in the battery pack.
The line voltage ill fluctuate depending on the instantaneous load that the
motor is under. For example , hen starting out from a dead stop, or going up
a steep hill, the motor ill be under a high load and may sho a reduced
number of LED’s or sho the “Yello ” or even “Red” LED.
When the throttle is disengaged (i.e. no po er to the motor due to the
bicycle being stationary or coasting) the LED’s on the throttle ill indicate
the voltage of the battery pack. The voltage of the battery pack ill rise
hen no load is on the motor. The best indication of ho much battery life is
remaining is to check the throttle LED’s, after reaching cruising speed, on a
flat straight road as this ill allo the battery voltage to stabilize and give a
much more accurate reading.
The LED’s 790 type ith 3 speed you can also choose on the LED’s 790,
MODE (LOW, MED ,HIGH).
TAG Throttle with Battery Gauge for SLA battery -bike
TAG Throttle and Individual Battery Gauge for Li-ion battery -bike

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Throttles
Throttle, are equipped on some models of electric bicycles. Throttles operate
be rotating the throttle much like a motorcycle. They generally are the inner
half of the right side handlebar grip and may also contain a battery gauge.
The more you t ist the throttle, the faster the motor system ill propel
bicycle.
TAG Throttle
TAG (T ist and Go)
Before you begin riding, turn the main po er s itch on, then start riding as
you ould ride a regular, non-motor assisted bicycle. After you have begun to
ride, slo ly t ist the throttle (on equipped models) to ards you .The more
you t ist the throttle, the more motor po er ill be applied to the heels.
You may feel the pedals get a “lighter” feel than riding ithout the motor
assisting you. Once you have t isted the throttle all the ay, the motor ill
accelerate you to its full speed of about 15mph (24km/h).
PAS (Pedal Activated System)
Electric bicycles ith this system have a throttle that is only active hen the
pedals are in for ard motion. A sensor ring on the bottom bracket spindle
rotates and a sensor reads this rotation.
Begin by first riding as if you are on a normal non-electric bicycle, then hile
the pedal are in motion slo ly t ist the throttle to ards you the activate the
motor po er.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Taking Care of Your Batteries
Proper maintenance of the batteries ill maximize their lifespan and
available ride time.
· We use SLA (Sealed Lead Acid) or Li-Ion (Lithium Ion) batteries in all of our
electric bicycles. These are very user friendly types of batteries hen
cared for properly.
· Batteries should be fully charged immediately hen they are received for
the recommended charger times. FULLY CHARG BATT RI S B FOR
FIRST US .
Belo are the recommended charge times for each type of the batteries.
· Li-Ion(Lithium Ion) batteries 4-6 hours
· SLA(Sealed Lead Acid) 6-8 hours
· Charge batteries at least very 90 days for Li-ion and every 30 days for SLA
until normal use is resumed.
· Al ays store bicycle ith fully charged batteries.
· Never charge the batteries for more than 24 hours
· Al ays disconnect the charger form the all outlet and bicycle hen
charging is complete (as indicated by the status on the charger) before
storing the bicycle.
· Do not store the batteries below 5 0
00
0°
°°
° Fahrenheit and never allow
batteries to freeze (Below 32 °
°°
° Fahrenheit)
· Bikes are equipped ith a 5 minute sleep mode .If no activity is detected
after 5 minutes the bike ill go into sleep mode to conserve the batteries.
To Restart, cycle the po er s itch Off then On. Bikes are not to be stored
in the 5 minutes sleep mode .Be sure to turn the power switch “OFF”
when the bike in not in use.
· Al ays be sure to turn the bike “OFF” after each use via the ON/OFF po er
s itch. If you have left the po er s itch on or your product have not been
charged for a long period of time, the batteries may reach a stage at hich
it ill no longer hold charge.
· Be friendly to the environment! Be sure to recycle your old batteries at a
local battery recycling center. Do not thro them in the garbage.
· Frequent “stops and starts” ill drain a battery more quickly than sustained.
long term use.
· Even ith proper care, rechargeable batteries do not last forever. Average
battery life depends on use and conditions.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
· The Li-Ion battery rear lights po er is directly on the rear of battery .
· The Battery po er s itch is the Red Button under the rear battery
(beneath LED Light).
· The Li-Ion battery charger connector is covered by a rubber cover hen you
lift the battery handle.
· The SLA S itch for On/Off is the key, rotate clock ise to turn on the
battery po er.
· SLA charger connector and Fuse on opposite side.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
SLA Battery Packs (Sealed Lead Acid battery)
SLA battery packs: 24V 10Ah Sealed Lead Acid Battery,
First time charging time: 8 hours,
Recharging time: 6~8 hours,
Do not charge longer than 24 hours!
Last about 350 recharge cycles.
1 . Turn the key to unlock the battery box.
2. Lift up Seat via lever, Pull out the battery box along the rail & remove, the
battery can no be charged separately.
3. Push the battery box into the compartment along the rail, turn the key to
lock the box.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Li-Ion Battery Packs (Lithium-ion battery)
Li-ion battery packs: 36V 10Ah Lithium Battery,
First time charging time: 6 hours,
Recharging time: 4~6 hours,
Do not charge longer than 24 hours!
Last over 1000 recharge cycles.
1. Turn the key to unlock the battery box.
2. Pull out the battery box along the rail & remove, the battery can no be
charged separately.
3. Push the battery box into the compartment along the rail, turn the key to
lock the box .

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
Charger
The electric bike comes ith its o n “Smart Charger” that connects ith an
easy-access charger port for recharging the batteries. This charger has lights
hich sho the battery charge status.
Batteries ork best hen they have a full charge, so al ays be sure to
recharge them fully after each ride. If you leave then in a run-do n condition,
ithout recharging them, it ill shorten their life expectancy.
Li-Ion (Lithium ion ) batteries –charge for 4-6 hours
SLA (Sealed Lead Acid) batteries-charge for 6-8 hours
The charger may get arm to the touch, so make sure you charge they are
in an open area and do not lay anything on the charger unit hile charging.
Although you cannot over-charge the batteries using the “Smart Charger”,
We recommend that you do not leave the charger plugged in for more the
24 hours.
If your charger sho s a solid green light after charging for a short period of
time, your battery may have been only partially discharged (Short ride), or
this may be the sign of a partially orn out battery reduced charge
capacity. Continue charging for the full time, to cover all the bases. If the
battery still has not charged, you may need to replace it.
Even ith Proper care, a rechargeable battery dose not last forever.
Average battery life depends of use and conditions.
The charger and charger port should be regularly inspected for
damage (Cord, plug, enclosure, etc.). If damage is found stop using until
the damage part can be repaired or replaced.

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
How to use the SLA Chargers (Standard)
1. Red light means charging
2. Green light means charge-full
3. Input: AC100-240V ～ , 1.5A (Max) 47/63Hz
4. Output: DC29.2V—2.0A
5. Plug the charger into the outlet. The indicator light on the top of the
charger ill illuminate hen the charger is orking properly. Refer to the
sticker on the charger for actual status light indication.
6. Insert the Plug into the charger port on the bike being sure the charger
plug is fully seated in the charger port. The light should be solid red or
blinking green to indicate charging ho ever you ill need to refer to the
sticker on the charger for actual status light indication.
7. Once the battery reaches full charge, the lights ill return the solid green
ho ever you ill need to refer to the sticker on the charger for actual status
light indication.
8. When charging is complete, unplug the charger from the all before
removing it from the charger port.
Charge, for the full time. If the battery still has not charged, you may need to
replace it.
Use only Yukon Trail Authorized SLA battery chargers with
bicycles equipped with SLA batteries.
Using any other charger will damage the batteries and void your warranty.
CAUTION
CHARG ONLY L AD ACID TYP R CHARG ABL BATT RY.RISK OF L CTRIC
SHOCK, DRY LOCATION US ONLY. S INSTRUCTION MANUAL FOR US .

DO NOT RETURN STORE. For questions regarding assembly and use, call Customer Service: 877-441-6999.
How to use the Li-ion battery charger
1. Red light means charging
2. Green light means charge-full
3. Input: AC100-240V ～ , 1.6A (Max) 50/60Hz
4. Output: 42.00V—2.0A
5. Plug the charger into the outlet and turn the charger “ON” via the s itch
on the black side. The red po er light on the front of the charger ill
illuminate hen the charger is orking properly.
6. Insert the XLR plug into the charger port on the bike being sure the charger
plug is fully seated in the charger port. The second light ill start to flash
orange for several seconds hile the charger is “seeking” the battery.
7. Once the charger has “found” the battery the blinking orange light ill
stop flashing and turn solid orange and cooling fan ill start. At this point the
charger process has begun.
8. Once the battery reaches full charger, the orange light ill turn solid
green.
9. When charging is complete, unplug the charger from the all before
removing it from the charger port.
Charge for the full time. If the battery still has not charged, you may need to
replace it.
Use only Yukon Trail Authorized Li-Ion chargers with bicycles
equipped with Li-Ion batteries.
Using any other charger will damage the batteries and void your warranty.
CAUTION
RISK OF L CTRIC SHOCK, DRY LOCATION US ONLY. S INSTRUCTION
MANUAL FOR US .