GMX GE-YX125 series User manual

ASSEMBLY MANUAL
Read and understand this entire manual before riding!
DO NOT RETURN TO STORE!
NOTE: Manual illustrations are for demonstration purposes only. Illustrations man not reflect exact appearance of actual procduct.
WWW.GMXMOTORBIKES.COM.AU
ATV OFF ROAD - GMX 125 BEAST

CONGRATULATIONS ON YOUR GMX PURCHASE!
This assembly guide covers basic step by step instructions to assist you with the assembly process.
Products are always subject to further improvement, which will cause some dierence between vehicle and this manual,
without further notice. We wish you happy riding.
UNPACKING
Please CAREFULLY remove all external box and metal frame packaging
TIP: These parts can be sharp so when unpacking the packaging hand with caution.
CHECK LOOSE PARTS
On most occasions your bike will come 90% assembled (depending on the model). Please go through all lose parts and check
packaging that has been taken out, to ensure no parts get thrown out so you can assemble your GMX Product.
READ MANUAL
Ensure that you read and go over the manual and UNDERSTAND before assembling product.
PLEASE NOTE: Minor assembly is required, but in the interest of safety it is recommended that you have this bike assembled
by a skilled bike mechanic.
TO DOWNLOAD YOUR COMPLETE OWNER’S MANUAL GUIDE PLEASE VISIT http://www.gmxmotorbikes.com.au/download-centre

YOU MUST CHECK
THAT THE FRONT
STEERING IS ADJUSTED
CORRECTLY PRIOR
TO RIDING.
CHECK BRAKES
ARE ADJUSTED
CORRECTLY PRIOR
TO RIDING.
YOU MUST CHECK
THAT THE CHAIN
IS ADJUSTED
CORRECTLY PRIOR
TO RIDING.
PLEASE READ AND UNDERSTAND ALL INSTRUCTIONS AND WARNINGS PRIOR TO ASSEMBLY AND OPERATING OF YOUR VEHICLE.
Swing tags have been placed on your vehicle for you to identify checks that are located within this manual. Once you have performed the
check required remove these swing tags and nylon loops attaching them to the vehicle.
MAKE SURE TO REMOVE THE SWING TAGS AND TAKE SPECIAL NOTICE TO REMOVE THE NYLON LOOP.
The tags and loops that need to be removed from this model: GMX 125cc The Beast Quad Bike
ONCE SWING TAGS AND NYLON LOOPS ARE REMOVED YOU ARE ACKNOWLEDGING THAT THESE
CHECKS HAVE BEEN PERFORMED
There may be a“Spare Parts Package”within the carton so please check all of the packaging
and DO NOT THROW OUT
WARNINGS
SWING TAG’S & WARNINGS
BRAKE ADJUSTMENT x3STEERING ADJUSTMENT x2 CHAIN ADJUSTMENT
ALWAYS LEAVE IN
THE OFF POSITION
WHEN NOT IN USE
OR REMOVE KEYS
KEY REMOVAL
WARNING
Please use unleaded fuel
90 Octane or above
UNLEADED FUEL ONLY
WARNING: This product is powered by a 4 stroke engine and comes with transport oil in the engine.
THE OIL NEEDS TO BE DRAINED AND REPLACED WITH MOTORCYCLE OIL 10W/40 or 10W/50 IS REQUIRED
IF THE OIL CHANGE IS NOT PERFORMED YOU MAY INTERNALLY DAMAGE THE ENGINE AND CLUTCH AND VOID YOUR WARRANTY
DO NOT USE MOTOR CAR OIL
DO NOT USE OIL WITH FRICTION MODIFIERS
OIL WILL NEED TO BE CHANGED EVERY 3 MONTHS IN A HOTTER CLIMATE OR THE NOTHERN HEMISPHERE
- There is an oil drain plug located underneath you quad/dirt bike and is highlighted with an oil drain plug sticker. This is a 14mm bolt.
- DO NOT remove the other bolt located under the engine.
- Place an oil receptacle under the drain hole, undo bolt and let oil drain from the vehicle. Please note: Dispose of oil correctly
- Tighten bolt back up, remove dipstick (oil ll point) and ll the vehicle with suggested correct amount of oil required. Tighten
TO AVOID DAMAGE TO GEARBOX AND
MOTOR. WHEN SELECTING GEAR AND
CHANGING GEARS, RELEASE THE
THROTTLE. DO NOT USE EXCESSIVE
FORCE ON GEAR LEVER.
GEAR LEVER

GMX MOTORBIKES WARRANTY
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major
failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods
fail to be of acceptable quality and the failure does not amount to a major failure.
The manufacturer warrants this product to be free of manufacturing defects for a period of 12 months from date of purchase. This Limited Warranty does
not cover normal wear and tear( exclusions apply) or any damage, failure or loss caused by improper assembly, maintenance, or storage or use of the GMX
product. Some parts will have a limited warranty period, please see below. This warranty is a part replacement warranty.
3 Month Parts Replacement Parts
Electrical components, suspension, drive train and brakes/ttings.
30 Days Parts Replacement Parts
Bearings, tires, tubes, cables, clutches, brake pads, seats
Minor assembly is required and in the interest of safety and warranty it is recommended that you have this product assembled by a qualied, skilled small
engine mechanic.
You may need to provide proof of being assembled by a skilled mechanic if not a report from a small engine mechanic advising of the issues to process
your warranty claims.
The warranty is a parts replacement warranty and labor is not included, defective parts may need to be sent back for inspection.
This Limited Warranty will be void if the product is ever;
- Used in a manner other than for recreation or transportation
- Modied in anyway
- Rented or commercial use.
The manufacturer is not liable for incidental or consequential loss or damage due directly or indirectly to the use of this product.
Always adhere to the maximum load of the product, over loading the product will void the warranty.
How a claim is made
When making a claim, you will need to provide proof of purchase, condition photos of the item. This information is required to be submitted via the
support center and communication is made through the support center. When the claim is created, the customer will receive the claim number and the
customer support team should reply within 48 hours.

SAFETY PRECAUTIONS
RIDING PRACTICES
ASSEMBLY
HANDLEBARS .3
FRONT END .4
BRAKES CHECK .5
BRAKE HOSES .5
FRONT WHEELS .6
REAR WHEELS .6
REAR WHEELS .7
FRONT BUMPER BAR .7
REAR FOOTWELLS .8
REAR FOOTWELLS .9
STEERING ALIGNMENT .9
CONNECTING BATTERY .10
CHECKING OIL IN ENGINE .10
CHECK OVER BIKE .10
GOVERNOR CHECK .11
STARTING .11
START USING YOUR GMX BIKE .11
.1
.2
TROUBLE SHOOTING .12/13
CONTENT

Please read these warnings carefully.
PARENTS/SUPERVISING ADULTS MUST TEACH CHILDREN HOW TO RIDE
THIS PRODUCT.
If the rider does not use common sense and heed these warnings, there
is an increased risk of damage, serious injury or possibly death.
Riding this product presents potential risks.
Like any OFF ROAD riding product, riding this product can be hazardous
(e.g., falling o or riding into a hazardous situation).
These items are meant to move and it is therefore possible for a rider to
lose control or otherwise get into dangerous situations.
Persons responsible for supervising the rider must recognize that if such
things occur, a rider can be seriously injured or possibly die, even when
using safetyequipment and taking other safety precautions.
SAFETY PRECAUTIONS
USE PRODUCTS AT YOUR OWN RISK AND USE COMMON SENSE
Parents and adult responsibility and supervision are necessary for any o
road vehicle.
This product can be hazardous and not always appropriate for every age
or size user - age recommendations are found on these items that should
reect the nature of the hazards and the expected mental or physical ability,
or both, of a
rider to be able to handle the hazards. Persons that are supervising need
to select themselves the appropriate product for the age of the user that
is riding and need to take care to prevent any user who may be too
immature or not experienced for a products. characteristics to endanger
themselves around it.
Any rider unable to t comfortable on the product should not attempt to
ride it. It’s a parent’s decision to allow the user to ride this o road vehicle
product, which should be based on the user’s maturity, skill and ability to
follow rules.
Keep this product away from small children and remember that it is
intended for use only by person who are, at the age requirement,
completely comfortable and competent while riding.
Persons with any mental or physical conditions that may make them
susceptible to injury impair their physical dexterity or mental capabilities
to recognise, understand, and follow safety instructions inherent to use of
this product, should not use or are permitted to use products inappropriate
for their ability.
Persons with heart conditions, head, back or neck ailments (or prior
surgeries to these areas of the body), or pregnant women, should be
cautioned not to operate such products.
1.

RIDING PRACTICES
This product is designed for o road use. Follow all rules applicable in the
area of intended use.
Ride defensively to avoid dangers that may enter your path.
Always check and obey local laws or regulations which may aect where
the item can be used. Keep safely away from motor vehicles and trac at
all times and only used where allowed and with caution. Watch out for
potential obstacles
The product is intended for use on at, dry surfaces such as concrete or
level ground, without loose debris such as sand, leaves, rocks or gravel.
Riding on wet, slick, bumpy uneven or rough surfaces may give less
traction and in turn increase the risk of accidents.
Watch out for obstacles that could stop or catch your wheel or make you
swerve suddenly or lose control.
Do not ride indoors
Never use near steps or swimming pools.
Do not use the brake and accelerator at the same time as the brake may
make the brakes hot and to fail.
Always have your hands on the handlebars and hold them at all times
when riding.
Do not touch the motor or brakes whilst riding or directly after riding as
they can become hot.
Avoid high speeds on downhill slopes where you might lose control.
Do not ride at night or when visibility is low.
Do not attempt to do stunts or tricks on your item.
It is not strong enough to withstand use such as jumping or any other
types of stunts.
Never carry a passenger on an ATV.
Do not allow hands, feet, hair, body parts, clothing or similar articles
come in contact with moving parts, wheels or drive train.
Never use headphones or a mobile phone/s whilst riding.
Do not use under the inuence of drugs and alcohol.
Always wear protective gear, such as an approved safety helmet, gloves,
goggles, boots and protective clothing.
A long sleeve shirt, long pants and gloves are recommended.
Never ride barefoot or in thongs.
Never modify an ATV through improper installation or use of accessories.
Never exceed the stated load capacity for an ATV.
Do not tow a trailer, the vehicle is not designed for such use.
Turn o vehicle after each ride and make sure keys are placed out of reach
of children.
Always ware an Australian standard Motorcross helmet when riding an
o road vehicle.
2.

ASSEMBLY
HANDLEBARS
1a. Handlebars are found generally on the side of the quad attached by the cables.
1b. Locate 4x handlebar xtures and bolts in pack.
1c. Place two of the xtures on the on top of the steering column lining up with the bolt holes, place handlebars on top, then the
two remaining xtures then bolt down and tighten.
STEP .1 STEP .2 STEP .3
*TIP: Be careful not to pinch cables
3.

ASSEMBLY
FRONT END
Front Suspension and Steering
Before installing please make sure all wheel are at the correct tyre pressure which is located on the wall of the tyre.
Lift bottom swing arm
into place at bottom of
shock absorber.
Insert bolt and attach
swing arm to shock
with bolt and nut
provided, tighten bolt
and nut.
Place lower front axle
steering bracket on lower
ball joint and fasten with
small castle nut, tighten
castle nut and insert split
and bend around castle nut.
THIS WILL BE REQUIRED ON BOTH SIDES LEFT AND RIGHT.
Place upper front axle
steering bracket on
upper ball joint and
fasten with small
castle nut, tighten
castle nut and insert
split and bend around
castle nut
1. 2.
3. 4.
4.

ASSEMBLY
BEFORE ATTACHING WHEELS CHECK THE BRAKES
BRAKES CHECK
Check front and rear caliper bolts (Top and Bottom) and tighten.
BRAKE HOSES
DO NOT OVERTIGHTEN ANY OF THE BRAKE HOSE BOLTS!
Check and tighten the:
- Brake hose bolt attaching the brake hose to the caliper front-left/ right and rear.
- The “T” joint brake hoses.
- Both brake lever brake hoses on handlebars (if needed) (left and right)
Image showing left.
DO ON BOTH SIDES
5.

ASSEMBLY
FRONT WHEELS
Required left and right
Make sure the tyre tread pattern faces the correct direction.
REAR WHEELS
Required left and right
Make sure the tyre tread pattern faces the correct direction.
Attach hub cap.
Place wheel on the four hub bolts
and fasted with nuts provided,
tighten bolts.
Place rear wheel
spline on the
rear axle
Place washer on
axle, then hubcap
washer, then
castle nut.
6.

ASSEMBLY
Tighten castle nut, x with split pin and bend split pin around nut.
Attach hub cap.
FRONT BUMPER BAR
Place bumper in place aligning the
bolt holes.
Feed bolts through bumper into
frame and tighten.
Remove the four
bolts from the frame.
7.

ASSEMBLY
REAR FOOTWELLS
Required left and right.
Remove outside bolt
and nut from the
foot peg and keep to
the side
Remove the plastic footwell from the
footwell frame – This will make it easier
to attach to the quad frame.
Remove bolt that
attaches the footwell
from the frame and
keep to the side.
8.

ASSEMBLY
Attach footwell frame
to quad frame with
bolts and nuts placed
aside.
Re-attach plastic
footwell to the
footwell frame .
STEERING ALIGNMENT
Required left and right (if needed)
- The wheels may not be in the straight position so you may need to align these
- Have the handlebars in the straight position
- Look at the front wheels to make sure they are straight (with a slight toe in) if not you will need to.
DIAGRAM 1A
- Locate the steering arm (Display shows with wheel removed, will need to be done
with wheel attached)
- Loosen the two lock nuts at both ends of the tie rod arms arm so you can move the main steering arm.
* These will both have opposite threads
- Attach a spanner to the steering arm and move until the wheel is straight
- Tighten the lock nuts back up
9.
DIAGRAM .1A
Steering Arm

CONNECTING BATTERY
- Remove seat from quad bike by releasing clip under seat and lifting o
- Battery and terminals are located below the seat
ASSEMBLY
Make sure when placing terminals on battery that the correct polarities are followed.
- Red for positive (+ sign on battery) and black for negative (- sign on battery)
DO NOT allow positive terminal lead to touch the metal frame.
- Check fuse on positive battery lead to make sure is intact
CHECKING OIL IN ENGINE
Please check oil in engine for correct level before starting. If engine oil is required please add or replace with 4 stroke oil (15-w40 motor cycle oil)
CHECK OVER BIKE
- Check all pre-assembled nuts and bolts as these have been found to be loose. It is the buyer’s responsibility to check these are all secure
before using the product
- We recommend using lock tight and the nuts can become loose over time with the vibration. Regularly check and tighten nuts and bolts
- Lubricate chain
- Look over all wires and make sure all plugs are connected and check for irregularities
- Throttle cable is moving freely through throttle
10.

GOVERNOR CHECK
Your 4 stroke GMX product can be governed down to the minimum (except 2 stroke as these require minimum of 80%)
STARTING
- Turn key barrel on and depress the brake lever to check if the brake light illuminates to make sure the electrical system is working.
- When starting your GMX quad you will need to hold down the brake caliper as this is a starting safety feature.
- Place fuel in fuel tanks and check for leak in all of the fuel system.
- Turn the fuel tap to the on position.
- Turn the key barrel to the on position.
- The carburetor will have a choke lever located on the side, when starting leave in the up position and after the quad has warmed up
(approx. 5-10 minutes) then place in the down position.
- Make sure the rear parking brake is on when starting your quad.
- Press the ignition button located on the left hand side of the handle bars and Ride Away .
START USING YOUR GMX BIKE
Once started, please let bike run 15-20 minutes prior to use.
ENJOY YOUR GMX BIKE!
If any questions or concerns please visit the link below
http://www.goeasyaustralia.com.au/support-centre
ASSEMBLY 11.

BRAKE ISSUE
Clean brake lines via compressed air if not resolved see below points.(Possibility air or not enough uid in lines)
- Air in your lines or not enough uid makes it almost impossible to generate hydraulic pressure so your brakes feel very soft.
- Check to see uid levers are low or not. If low, then add more uid.
- Grab a wrench and loosen the bleed bolt on your brakes just a tiny bit.
- Push down on your brakes until to start to feel some pressure and then hold on.
- Now loosen the bleed bolt and let the pressure take the air out before quickly tightening the bleed bolt again.
- Pump your brakes and hopefully you will have pressure. This whole process is called “bleeding your brakes”
If this doesn’t work the rst time, try again up to 4 times, if still no result your brakes make be out and need replacement
GOT NO SPARK
- Check spark plug for oil or residue, if found clean and dry and t plug
- Connect spark plug to coil and place on something metal. if spark plug is working this will create a spark. If no spark please try new
spark plug
If the replacement spark plug does not work, please see below points to eliminate the issue.
- Locate kill switch (front and rear), than remove kill switch and if sparks you have located issue, if not please see next point
CHECK STATOR
The rst indication that you have a dead stator or magento can be from a burnt smell or you can check with a multimeter. If resistance is
approximately 100 omhs, then the stator is ne. If it is more or less, then its on its way out. If it gives you nothing its dead.
If you have a mate who has a similar bike which is working, than ask if you could test the CDI or ignition coil on it. If you don’t, then take the item
to your local small engine mechanic to get them tested.
Please check all the wiring housing and cup lings are connected.
If none of the above resolves the issue, this is an indication that the product needs to be assessed by a small engine mechanic.
TROUBLE SHOOTING 12.

GOT SPARK BUT BIKE WON’T RUN
Common issue for this is your bike is running rich or lean
Remove spark plug and have a good look at the colour of the tip, if the colour is;
1. white/whitish –than you’re running lean (not enough fuel)
2. Black/Blackish –Then you’re running rich (too much fuel)
3. Brown – Should indicate a healthy carburetor (not too lean or rich, just right)
-make sure that the carby manifold is tightened correctly with no air or gaps, if so please tighten.
-try spraying aero start in the air lter, than try starting the bike. If this starts the issue is resolved, if dies out please see below.
TEST IF BIKE IS RUNNING RICH OR LEAN.
1. Make sure your spark plug is clean
2. Take your bike for a 5 to 10 minute hard spin
3. Take the spark plug out and see what colour it is.
The carburetor needle could be too high or low, which could cause the bike to run rich or lean. If the bike is running rich, than you might want to
lower the needle one notch and visa versa if it’s running too lean.
OTHER COMMON ISSUES
- Retire old fuel
- Fuel does get old, it is recommended to drain fuel and replace with fresh fuel as fuel life expectancy is 1 month for 4 stroke.
- Knicked fuel line
- Fuel line knicked is due to the line being to short, replace with longer fuel line
CHOKE IN UPRIGHT POSITION
- If product is spluttered or stall this is generally because choke is in the upright position. Please only keep choke in the up position
when warming up and then place down while riding.
CUTTING IN AND OUT
- Please remove air lter and give a good clean and place back in.
BIKE EXCESSIVELY WET?
-Ensure after each ride that the product is dried around all electrical components.
(Hint) Water replacement (DW40) spray on cup lings can help remove water)
TROUBLE SHOOTING 13.