Rival Mudhawk 6 User manual

READ THIS MANUAL CAREFULLY! It contains
important safety and service information.
Mudhawk 6 Owner’s Manual

INTRODUCTION
Thank you for purchasing the MudHawk 6. This ATV is designed for years of reliable use and family fun.
This manual will provide you with a good basic understanding of the features and operation of this ATV.
This manual includes important safety information. It also includes general riding techniques, maintenance
and inspection procedures. If you have any questions regarding the MudHawk 6, please contact your local Rival
Motorsports dealer, visit rivalmotor.com or call Customer Service at 214-635-3980.
AN IMPORTANT NOTE TO PARENTS:
THE MUDHAWK 6 IS INTENDED FOR USE BY OPERATORS 6 YEARS OF AGE ND OLDER.
This ATV is not a toy. Before you let your child operate this ATV, you should understand
the instructions and warnings in this Owner’s Manual. Then be sure your child
understands and will follow them. Children differ in skills, physical abilities and judgment.
Some children may not be able operate an ATV safely. Parents should supervise their
child’s use of the ATV at all times. Parents should permit continued use only if they
determine that the child has the ability to operate this ATV safely.
The MudHawk 6 has multiple safety features including an adjustable speed limiter. We recommend that all beginners
start with the slowest setting rst. The speed adjusting screw may be gradually turned out as the beginner becomes
more familiar with operating this ATV. Parents should decide when to adjust for more power and speed as the rider’s
riding skills improve.
If your child is a beginner or is inexperienced, he or she should take a training course
free of charge. The free training course is available to purchasers of new MudHawk 6 by
calling [phone].
TIP

IMPORTANT MANUAL INFORMATION
FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN
SERIOUS INJURY OR DEATH.
Important information is distinguished in this manual by the following notations:
Product and specications are subject to change without notice.
IMPORTANT NOTICE
The MudHawk 6 ATV is designed and manufactured for off-road use only. It is illegal and
unsafe to operate this ATV on any public street, road or highway.
This ATV complies with all applicable off-road noise level and spark arrester laws and
regulations. Please check your local riding laws and regulations before operating the
MudHawk 6 ATV.
This ATV should not be operated by anyone under 6 years of age.
This ATV should only be assembled and prepped by an authorized Rival Motorsports Dealer. You should never
to try to attempt assembly of this ATV yourself. Death or serious injury could result from failure to follow these
warnings and instructions.
This is the safety alert
symbol. It is used to alert
you to potential personal
injury hazards. Obey all
safety messages that
follow this symbol to avoid
possible injury or death.
A NOTICE indicates special
precautions that must be taken
to avoid damage to the vehicle
or other property.
A TIP provides key information
to make procedures easier
or clearer.
A WARNING indicates a
hazardous situation which, if
not avoided, could result in
death or serious injury.
TIP
NOTICE
NOTICE

TABLE OF CONTENTS
Location of Safety Labels ........................................................... 1
Safety Information ....................................................................... 2
Engine Stop, Lanyard Cord & Remote .................................... 4
Aftermarket Accessories & Modications ............................ 5
Description ...................................................................................... 7
Control Layout ................................................................................ 8
Controls & Functions ................................................................... 8
Pre-ride Safety Checks ................................................................ 14
Getting to know your ATV ........................................................... 20
Maintenance .................................................................................... 32
Emission Control System Warranty ........................................ 36

1
LOCATION OF SAFETY LABELS
SAFETY INFORMATION
Please read and understand all of the labels on your MudHawk 6
ATV. These labels contain important information for safe and proper
operation. Never remove any labels from your ATV. If a label becomes
difcult to read or comes off, request a new replacement label from
your local Rival Motorsports dealer.
THE MUDHAWK 6 ATV IS NOT A TOY AND CAN BE HAZARDOUS TO OPERATE.
MAKE SURE YOU UNDERSTAND ALL INSTRUCTIONS.
PAY CLOSE ATTENTION TO THE WARNING AND CAUTION LABELS ON THE ATV.
NEVER OPERATE THIS ATV WITHOUT PROPER TRAINING OR INSTRUCTION.
CHILDREN MAY NOT BE ABLE TO OPERATE THIS VEHICLE SAFELY DUE TO PHYSICAL OR MENTAL LIMITATION.
The ATV you purchased may differ slightly from the illustrations in this Owner’s Manual.
Please consult your local Rival Motorsports dealer with any questions not covered in
this manual.
NOTICE

2
lAlways avoid operating an ATV on any paved surfaces, including sidewalks, driveways, parking lots
and streets.
lThis ATV is designed for operation by a single person at least 6 years of age, without passengers.
lNever operate an ATV on any public street, road or highway, even a dirt or gravel road. This ATV is designed
and manufactured for use only off public roads.
lNever operate an ATV without wearing an approved motorcycle helmet that ts properly. You should also
wear eye protection (goggles or face shield), gloves, boots, a long-sleeved shirt or a jacket, and long pants.
lNever consume alcohol or drugs before or while operating this ATV.
lNever operate the ATV on hills too steep for the ATV or for your abilities. Practice on smaller hills before
attempting larger hills.
lNever modify an ATV through improper installation or use of accessories.
lNever attempt wheelies, jumps, or other stunts.
lAlways inspect your ATV before you ride. Make sure it is in safe operating condition. Always follow the
inspection and maintenance procedures and schedules described in this manual.
lAlways keep both hands on the handlebars and both feet on the footrests of the ATV
during operation.
lAlways follow proper procedures for turning as described in this manual. Practice turning at low speeds
before attempting to turn faster speeds and never turn at excessive speeds.
lNever let refueling be done by anyone other than an adult.
SAFETY INFORMATION

3
lNever permit anyone other than an adult to start the ATV.
lDrain gasoline form the fuel tank and carburetor prior to transporting the ATV.
lCaution the child and others near the vehicle not to get close to or touch any moving parts or any heated areas
such as the engine and exhaust pipe.
lDo not allow the vehicle to be operated at night, because this vehicle is not equipped with a headlight.
lNever let your child operate an ATV without close adult supervision (a child under 6 should not operate this
ATV even with adult supervision).
lPromptly correct your child if he or she begins to ride beyond his or her abilities and, if necessary, intervene by
pulling the cord (lanyard) to stop the engine.
lIf the child rides beyond his or her abilities, or rides in terrain that is too difcult, he or she may lose control of
the ATV, causing an accident.
lIntroduce new riding situations slowly and make sure the riding areas do not exceed your child’s skill level.
SAFETY INFORMATION (continued)

4
ENGINE STOP LANYARD CORD & REMOTE
The MudHawk6 has two emergency-stop engine switches. The primary emergency engine shut off witch is the lanyard
cord and the secondary is the wireless engine shut off key fob.
The wireless engine shut off key fob has a limited range that varies in different conditions
DO NOT RELY solely on the key fob as the emergency engine shut off switch, especially
during operator training.
LANYARD CORD:
The lanyard cord is designed for use by an adult supervising the child operating the ATV. When using the engine
stop switch cord, be sure the speed limiter on the handlebar is adjusted and the engine speed limits the ATV to a
walking speed.
1. Install the cap on the end of the engine stop switch cord onto the engine shut-off switch
(white button).
2. Put your ngers in the loop at the other end of the cord.
3. As your child is riding, walk behind the ATV, closely watching his or her actions as well
as the path ahead.
4. If there is a potential hazard ahead or if your child is not riding correctly, pull rmly on the cord (lanyard) to
stop the engine. Because the ATV will continue to roll for some distance,
allow extra time and distance to pull the cord before a potentially hazardous situation
might be encountered.
The ATV will not start without the cap in place.
KEY FOB:
The wireless engine shut-off is designed for use by an adult supervising the child operating the ATV. The wireless
engine shut-off will work in the range of 50ft. If outside the range of the remote the remote will not stop the engine.

5
1. Test the range by turning on the ATV and walk 50 feet away and press the shut-off button on
the wireless remote. The engine should stop running, if the engine continues to run, you may
need to get closer or make sure there are no obstructions between the ATV and you.
2. Before using the wireless engine shut-off switch make sure the batteries in the remote are
new and have a full charge. Low or dead batteries in the wireless remote can prevent the it
from working properly.
3. The wireless engine shut-off key fob should not be used as a full-time engine stop switch by
the operator.
Supervising adults can use the wireless engine shut-off switch to turn the
engine off if the operator is riding recklessly or beyond his or her skill level. Once
corrective instructions have been given, the adult can restart the engine using the wireless
remote switch.
AFTERMARKET PARTS, ACCESSORIES
& MODIFICATIONS
lModications performed to your vehicle that change any of the vehicle’s design or operation characteristics
can put you and others at greater risk of serious injury or death. Never install accessories that would impair
the performance/function of your ATV. Carefully inspect the accessory before using it to make sure that it
does not in any way reduce ground clearance, limit suspension travel, steering travel or control operation.
lUse caution when adding electrical accessories. If electrical accessories exceed the capacity of the ATV’s
electrical system, an electric failure could result, which could cause a dangerous loss of electrical system or
engine power.
Installing aftermarket parts and/or accessories could void your Rival Motorsports factory
warranty. See a Rival Motorsports dealer for details.
TIP
NOTICE

6
Avoid Carbon Monoxide Poisoning! All engine exhaust contains carbon monoxide, a
deadly gas. Breathing carbon monoxide can cause headaches, dizziness, drowsiness,
nausea, confusion, and eventually death. Carbon Monoxide is a colorless, odorless
tasteless gas which may be present even if you do not see or smell any engine exhaust.
Deadly levels of carbon monoxide can collect rapidly and you can quickly be overcome
and unable to save yourself. Also, deadly levels of carbon monoxide can linger for hours
or days in enclosed or poorly ventilated areas.
If you experience any symptoms of carbon monoxide poisoning, leave the area
Immediately, get fresh air, and SEEK MEDICAL TREATMENT.
Do not run engine indoors. Even if you try to ventilate engine exhaust with fans or open
windows and doors, carbon monoxide can rapidly reach dangerous levels.
When transporting the ATV in another vehicle, be sure it is kept upright and that the fuel
valve is in the off position. Fuel may leak out of the carburetor or fuel tank cap.
Fuel Valve OFF

7
DESCRIPTION
LEFT SIDE RIGHT SIDE
Front Shock
Fuel Cap
Rear Cargo
Rack
Mufer
Rear Shock
Gear Shifter
Fuel On/Off Valve
Front Bumper
Cover
Air Filter
Fuse 15Amp
Spark Arrester
Engine Oil
Dip Stick
Foot Rest
Spark Plug

8
CONTROL LAYOUT
CONTROLS & FUNCTIONS
IGNITION SWITCH
The positions of the main switch are as follows.
Ignition ON All electrical systems are supplied with power, and the
engine can be started. The key cannot be removed.
Ignition OFF All electrical systems are off. The key can be removed.
Ignition OFF Ignition ON
Rear Brake Lever
Speed Limiter
Front Brake Lever
Throttle Lever
Main Switch
Choke Lever
Parking Brake Lock Button

MAIN SWITCH
Engine Start/Stop switch
() Use this switch to stop the engine in an emergency situation.
The engine will not start when this switch is set to this position.
() Set this switch to “()” run position before starting the engine.
START BUTTON
Push start button to crank the engine with starter. See the starting
instructions on page 21 before stating the engine.
ENGINE STOP SWITCH WITH LANYARD
Lanyard cap must be pushed in all the way for the engine to start.
THROTTLE
Once the engine is running, push the throttle lever to increase the engine speed. Regulate the speed of
the ATV by varying the throttle position. The throttle lever is spring-loaded to return to the start position when let go.
Before starting the engine, make sure the throttle lever is smooth in operation and will return to the start position. If
throttle lever is not smooth in operation or will not return to start position do not start engine.
SPEED LIMITER
The MudHawk 6 is equipped vehicle speed limiter adjusting screw. Beginning riders should start with the red
speed limiter screw for operation below 10 mph (slowest setting) to learn how to control this vehicle. Once
the operator has demonstrated mastery of the ATV, the supervising adult can exchange the red screw for
the adjustable (black) speed limiter screw included with the MudHawk 6. The vehicle speed limiter keeps the
throttle from fully opening, even when the throttle lever is pushed to the maximum. The adjusting screw may
be gradually turned out as the beginner becomes more familiar with operating this ATV.
9
Engine Stop
Choke
Start Button
Engine Run
NOTICE

10
Either the non-adjustable or adjustable speed limiter screw must be installed for
operation. Failure to install a speed limiter screw may result in water or dirt ingestion and
potential damage to the vehicle.
SPEED LIMITER
1. Loosen lock locknut
2. To INCREASE the top speed of the ATV turn the adjustment screw counter clockwise.
3. Tighten the locknut to set adjustment screw in desired position.
SPEED LIMITER ADJUSTMENT
1. Loosen lock locknut
2. To DECREASE the top speed of the ATV turn the adjustment screw clockwise.
3. Tighten the locknut to set adjustment screw in desired position.
FRONT BRAKE LEVER
The front brake lever is located on the right handlebar. To apply the front brake, pull the brake lever toward the
handlebar grip.
REAR BRAKE LEVER
The rear brake lever is located on the left handlebar. To apply the rear brake, pull the brake lever toward the
handlebar grip.
PARKING BRAKE
Use the parking brake before starting the engine or after parking the ATV, especially on a slope. Apply the rear
brake lever and push down the lock button to apply the parking brake. Squeeze the rear brake lever to release the
parking brake.
NOTICE

11
Always set the parking brake before starting the engine. The ATV could start moving
unexpectedly if the parking brake is not applied. This could cause loss of control or a
collision. Always be sure you have released the parking brake before you begin riding.
The brakes could overheat if you ride the ATV without releasing the parking brake.
You could lose control or cause an accident.
CHOKE LEVER
Starting a cold engine requires a richer air-fuel mixture. Move the choke lever to the left when starting a cold engine.
Once the engine is warmed up return the choke lever all the way to the right in the running position.
Choke OFFChoke ON

12
FUEL TANK CAP
Gasoline and gasoline vapors are extremely ammable. To avoid res
and explosions and to reduce the risk of injury when refueling, follow
these instructions.
1. Before refueling, turn off the engine and be sure that no one is sitting on the
vehicle. Never refuel while smoking or while in the vicinity of sparks, open
ames, or other sources of ignition such as the pilot lights of water heaters and
clothes dryers.
2. Do not overll the fuel tank. When refueling, be sure to insert the pump nozzle
into the fuel tank ller hole. Stop lling when the fuel reaches the bottom of the
ller tube. Because fuel expands when it heats up, heat from the engine or the
sun can cause fuel to spill out of the fuel tank.
FUEL TANK CAPACITY
If any fuel spills during fueling please wipe quickly, fuel may deteriorate
plastic body.
Remove the fuel tank cap by turning it counter clockwise.
Turn the fuel tank cap fully clockwise to make sure it is securely closed
Your ATV’s engine has been designed to use regular unleaded gasoline with a pump
octane number of 91 or higher.
Using ethanol fuel may lead to carburetor clogging due to the fuel’s sulfuric
content reacting with brass and aluminum components in the fuel system. Rival
Motorsports recommends Rival/Maxima fuel stabilizer to help mitigate damaging
corrosion. Visit your Rival Motorsports dealer to purchase recommended stabilizers
and lubricants.
TIP
NOTICE

13
FUEL COCK/ FUEL VALVE
The fuel cock/valve supplies fuel from the tank to the carburetor.
The fuel cock/valve lever positions are explained as follows and shown in the illustrations.
FUEL OFF
Arrow mark positioned over “OFF” position. Fuel is off and fuel will not ow to the carburetor. Always turn the
fuel valve to the ‘OFF’ position and allow the engine to idle until it burns remaining fuel in the line when the ATV
is being stored. Once the fuel in the line has been cleared, drain the carburetor bowls. Following this procedure
will help reduce corrosion and carburetor damage.
FUEL ON
Arrow mark positioned over “On” position. Fuel is on and fuel will ow to the carburetor.
SEAT
To remove the seat, pull the seat lock lever backward and then pull up the seat. The seat lock is located under
the seat in the back of the ATV.
TO INSTALL SEAT
Insert the tabs on the front of the seat into the seat holders and push down on the seat at the rear. Make sure
that the seat is securely installed in place and will not move during operation.
ADJUSTING SUSPENSION SPRING PRELOAD
This ATV is equipped with 3 adjustable coil springs. The spring preload can be adjusted to suit the rider’s weight
and the riding conditions. Turn the spring preload adjusting ring to increase (stiffest= 5) or decrease (softest= 1)
the spring preload. Increased spring tension will stiffen the ride. Decreasing spring tension will soften the ride.
The suspension was pre-set at the factory, but can be adjusted with a special
suspension adjustment tool available for purchase at your Rival Motorsports dealer.
NOTICE

14
PRE-RIDE SAFETY CHECKS
Inspect the ATV prior to each use to ensure it is in a safe operating condition. Always follow the inspections, procedures
and schedules described in the Owner’s Manual.
Failure to inspect or maintain the vehicle properly increases the possibility of an accident
or equipment failure. Do not operate the vehicle if any problem is discovered. If a problem
cannot be corrected by the procedures described in this manual, have the vehicle
inspected by a Rival Motorsports dealer.
ITEM ROUTINE PAGE
Fuel • Check fuel level in fuel tank, and add recommended fuel if necessary. 19
(91 octane min.) • Add Rival/Maxima Fuel Stabilizer if using ethanol fuel.
• Check fuel line for leakage. Correct if necessary.
Engine Oil • Check oil level in engine, and add recommended oil to 19
(Rival/Maxima) specied level if necessary.
• Check ATV for oil leakage. Correct if necessary.
Transmission Oil • Check ATV for oil leakage. Correct if necessary. 19
Front Brake • Check operation, and correct if necessary. 20
• Lubricate cable if necessary.
• Check lever free play, and adjust if necessary.
Rear Brake • Check operation, and correct if necessary. 20
• Lubricate cable if necessary.
• Check lever free play, and adjust if necessary.

15
FUEL
Make sure that there is sufcient fuel in the tank.
ENGINE OIL
Make sure that the engine oil is at the specied level. Add oil as necessary.
TRANSMISSION OIL
Make sure that the transmission oil is at the specied level. Add oil as necessary.
ITEM ROUTINE PAGE
Throttle Lever • Make sure that operation is smooth. Lubricate cable and 20
lever housing if necessary.
• Check lever free play, and adjust if necessary.
Control Cables • Make sure that operation is smooth. Lubricate if necessary. 20
Drive Chain • Check chain slack, and adjust if necessary. 20
• Check chain condition. Lubricate if necessary.
Wheels & Tires • Check wheel condition, and replace if damaged. 20
• Check tire condition and tread depth. Replace if necessary.
• Check air pressure. Correct if necessary.
Brake Levers • Make sure that operation is smooth. Lubricate lever pivoting 20
points if necessary.
Chassis Fasteners • Make sure that all nuts, bolts and screws are properly tightened. 21
Instruments & Switches • Check operation, and correct if necessary. 20

16
FRONT & REAR BRAKES
BRAKE LEVER
Check for correct free play in the brake levers. If the free play is incorrect, adjust it. Check operation of the levers. They
should move smoothly and there should be a rm feeling when the brake is applied. If not, have the ATV checked by a
Rival Motorsports Dealer.
BRAKE OPERATION
Test the brakes at slow speed after starting out to make sure they are working properly. If the brakes do not provide
proper braking performance, check the brake shoes/pads for wear.
THROTTLE LEVER
Check the operation of the throttle lever. It must open smoothly and spring back to the idle position when released.
If throttle is not operating properly DO NOT START ENGINE. Have a Rival Motorsports dealer correct the issue before
operating this ATV.
SWITCHES
Check to ensure all switches are working properly before starting the engine.
DRIVE CHAIN
Check the condition of the drive chain and check the drive chain slack. Lubricate and adjust the drive chain as necessary.
TIRES
Check tire pressure before each ride to make sure it is at the recommended specications (10 PSI). Also check for
wear and damage. Adjust tire pressures when the tires are cold. Tire pressure must be the same per axle. This ATV is
equipped with tubeless tires with valves.
TIRE WEAR LIMIT
When the tire groove decreases to 3mm (0.12 in) due to wear, replace the tire. Never operate an ATV with worn tires, as
this may cause loss of control, increasing your risk of an accident or death.