Tao Motor BULL 150 User manual

READ THIS MANUAL CAREFULLY! It
contains important safety and service
information.
Bull 150 Owner’s Manual

This vehicle should only be assembled and prepped by an
authorized Tao Motor Dealer or professional motorcycle mechanic.
You should never try or attempt assembly of this vehicle; it should
be done by professionals. Death or serious injury could result from
failure to follow these warnings and instructions.
Please read carefully before operating this vehicle!

THE BULL 150 IS INTENDED FOR USE BY OPERATORS 16 YEARS OF AGE AND OLDER. This ATV is not
a toy. Before you operate this ATV, you should understand the instructions and warnings in this
Owner’s Manual. Riders differ in skills, physical abilities and judgment, some adults may not be able
to operate an ATV safely.
As a new owner of this vehicle, the ATV owner/driver and immediate family of this vehicle
can enroll in a free hands-on training course. New purchasers of any new Tao Motor ATV models
by calling [phone].
TIP
The Bull 150 has multiple safety features including an adjustable speed limiter. We recommend that all beginners start with the
slowest setting first. The speed adjusting screw may be gradually adjusted as beginner becomes more familiar with operating this
ATV.
INTRODUCTION
Thank you for purchasing the Bull 150. 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 Bull 150, please contact your local Tao Motor dealer, visit www.taomotor.com or call Customer
Service at TEL: [phone].
AN IMPORTANT NOTE TO PARENTS:

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 specifications are subject to change without notice.
IMPORTANT NOTICE
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
The Bull 150 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 Bull 150 ATV.
This ATV should not be operated by anyone under 16 years of age.

WARNING & SAFETY LABELS
Please read and understand all of the labels on your Bull 150.
These labels contain important information for safe and proper operation. Never remove any labels from your ATV. If a label becomes
difficult to read or comes off, request a new replacement label from your local Tao Motor dealer.

Control Layout ............................................................................... 3
Main Switch ..................................................................................... 4
Getting To Know Your ATV .............................................. 30-40
Maintenance & Chart .......................................................... 42-47
Emission Control System Warranty ................................ 67-70
Speed Limiter .................................................................................. 6
Parking Brake .................................................................................. 7
Fuel Tank Capacity ......................................................................... 8
Fuel Tank Cap ................................................................................. 9
Fuel Cock/Fuel Valve .................................................................. 10
Seat .................................................................................................. 11
Battery ........................................................................................... 12
Battery Charging & Changing Fuse ....................................... 13
Pre-Ride Safety Checks ....................................................... 14-15
Front & Rear Brakes ...................................................................... 16
Tire Wear Limits and Chassis Fasteners .............................. 17
Starting Engine ............................................................................ 18
Engine Break-In ............................................................................ 19
Parking, Accessories & Modifications, Rear Cargo Rack .. 20
Throttle Cable & Throttle Cable Adjustment ..................... 22
Engine Idle Adjustment ........................................................... 27
Specification Chart ..................................................................... 41
Engine Oil .............................................................................. 48-49
Cleaning Air Filter Element .............................................. 51-52
Spark Plug ..................................................................................... 53
Drive Chain & Adjustment ............................................... 54-56
Cleaning Spark Arrester ............................................................ 61
Electrical Wiring Diagram ........................................................ 65
Transporting ................................................................................... 1
Description ..................................................................................... 2
Hydraulic Brake System ..................................................... 24-26
Commonly Asked Questions .................................................. 66
Instrument Cluster ........................................................................ 5
Gear Selector Lever ...................................................................... 21
Electrical Connector Wiring Diagram .................................. 64
TABLE OF CONTENTS
Adjusting Suspension Spring Preload.................................. 29
Checking Wheel Hub Bearings............................................... 57
Adjusting Steering Toe-In........................................................ 58
CVT Clutch & Belt Replacement ...................................... 59-60
Vehicle Identification Location .............................................. 63
Fuel Drain ...................................................................................... 28
Gear Box Oil ................................................................................ 50
8BTIJOH7FIJDMF ......................................................................... 62
Front Brake .............................................................................. 23-24

NOTICE The ATV you purchased may differ slightly from the illustrations in this Owner’s Manual.
Please consult your local Tao Motor dealer with any questions not covered in this manual.
SAFETY INFORMATION
THE BULL 150 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.
ADULTS MAY NOT BE ABLE TO OPERATE THIS VEHICLE SAFELY DUE TO PHYSICAL OR MENTAL LIMITATION.

Always avoid operating an ATV on any paved surfaces, including sidewalks, driveways, parking lots and streets.
FOR OFF-ROAD USE ONLY.
Never operate an ATV on any public street, road or highway, even a dirt or gravel road. This ATV is designed and manufactured for
off Road use only no public roads.
Never operate an ATV without wearing an approved ATV/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.
Never consume alcohol or drugs before or while operating this ATV.
Never operate the ATV on hills too steep for the ATV or for your abilities. Practice on smaller hills before attempting larger hills.
Never modify an ATV through improper installation or use of accessories.
Never attempt wheelies, jumps, or other stunts.
Always conduct a pre-ride inspection and follow the proper maintenance schedule and procedures as shown in this manual.
Always keep both hands on the handlebars and both feet on the footrests of the ATV at all times when operation the vehicle.
Always 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.
Never let refueling be done by anyone other than an adult.
SAFETY INFORMATION

Never permit anyone other than an adult to start the ATV.
Drain gasoline from the fuel tank and carburetor prior to transporting the ATV, also for storage over 48hrs.
The fuel tank and carburetor should be drained for any long periods of storage and for winter storage of the vehicle.
Caution 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.
Never let your child operate this ATV.
SAFETY INFORMATION (continued)

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.
Drain gasoline from the fuel tank and carburetor prior to transporting the ATV. Also for storage over 48hrs.
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
Off
TRANSPORTING THE ATV
1

DESCRIPTION
RIGHT SIDE
Air Filter
Fuse 10 Amp
Spark Arrester
Dip Stick
Foot Rest Spark Plug
Front Shock Fuel Cap Rear Cargo Rack
Muffler
Rear Shock
Front Bumper
LEFT SIDE
Battery
(Under
The Seat)
Front Cargo Rack
Engine Oil
Gear Shift Lever
(Under The Seat)
Fuel On/Off Valve
2

CONTROL LAYOUT
Ignition OFF Ignition ON
Front Brake Lever
Throttle Lever
Main Switch Assembly
Engine Start / Stop Switch Start Button
CONTROLS & FUNCTIONS
IGNITION SWITCH
The positions of the ignition 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.
Instrument Cluster Speed Limiter
3

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.
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.
MAIN SWITCH
Engine Start/Stop Switch
START BUTTON
Push start button to crank the engine with starter. See the starting instructions on page 18 before
starting the engine.
HEADLIGHTS
This Bull 150 ATV is equipped with High, Low, headlight features.
When ignition key is set to the " On " potion press the headlight switch to turn on headlights and to
toggle through modes.
Never operate this ATV with headlights set to "Low" mode. Always
ride this ATV with the headlights set in the "High" position.
1. Headlight Hi/Low Switch
2. Headlight On/Off Switch
3. Engine Run/Stop Switch
4. Engine Start Button
4

INSTRUMENT CLUSTER
The Instrument cluster displays important information about the ATV. Make sure the rider is familiar with all the
information displayed before riding ATV.
Instrument cluster icons
Gear indicator D,N,R
When “D” is displayed on the instrument panel the forward gear in engaged.
When “R” is displayed on the instrument panel the reverse gear in engaged.
When “N” is displayed on the instrument panel the neutral gear in engaged.
NOTICE
The ignition switch must be set to the "ON" position for the instrument cluster to display
any icons.
5

The 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.
NOTICE
SPEED LIMITER
ADJUSTMENT 1. Locknut
2. Adjustment
Screw
3. Adjustment
Range
Adults should always limit maximum restricted
speed within the ability and capacity of the
operator to operate the ATV safely. Never allow
children to adjust the speed limiter screw.
To increase top speed
SPEED LIMITER
The Bull 150 ATV is equipped with a vehicle speed limiter adjusting screw. Beginning riders should start with
slowest setting to learn how to control this vehicle. Once the operator has demonstrated mastery of the ATV,
the supervising adult can adjust speed limiter screw to increase the top speed . 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.
1. Loosen locknut (#1).
2. To decrease the top speed of the ATV turn the adjustment screw clockwise. (#2).
3. Tighten the locknut to set adjustment screw in desired position (#1).
1. Loosen locknut (#1).
2. To increase the top speed of the ATV turn the adjustment screw
counter clockwise (#2).
3. Tighten the locknut to set adjustment screw in desired position (#1).
To decrease top speed
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 HAND BRAKE LEVER
The rear brake lever is located on the right foot rest. To apply the rear brake, push the brake lever down towards the ground.
6

PARKING BRAKE
Use the parking brake before starting the engine or after parking the ATV, especially on a slope. This ATV is equipped with front axle
parking brake.
To set parking brake: Apply the front brake lever, push down the lock button and release brake lever to set parking brake.
To release parking brake: Apply the front brake lever to release the parking brake. The spring loaded parking brake button will return to
off position.
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.
1. Front Axle Parking Brake
7

Gasoline and gasoline vapors are extremely flammable. To avoid fires, explosions and to reduce the risk
of injury when refueling, follow these instructions.
FUEL TANK CAPACITY
If any fuel spills during fueling please wipe quickly, fuel may deteriorate plastic body.
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 flame, or other sources of ignition
such as the pilot light of water heaters and clothes dryers.
2. Do not overfill the fuel tank. When refueling, be sure to insert the pump nozzle into the fuel
tank filler hole. Stop filling when the fuel reaches the bottom of the filler tub. Because fuel
expands when it heats up, outside heat can cause fuel to expand and overflow fuel tank.
8

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-added fuel may lead to carburetor clogging due to the fuel’s sulfuric
content reacting with brass and aluminum components in the fuel system. Tao Motor
always recommends using a fuel stabilizer to help mitigate damaging corrosion. Visit
your dealer to purchase recommended stabilizers and lubricants.
FUEL TANK CAP
9

Fuel OFF Fuel ON
FUEL COCK/ FUEL VALVE
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 flow 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 flow to the carburetor.
STORAGE
Drain gasoline from the fuel tank and carburetor of the ATV if being stored for more than over 48hrs.
10

1. Seat Lock Lever 2. Frame 3. Seat Tab
SEAT
To Remove Seat
To remove the seat, pull the seat lock lever (#1) 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 tab (#3) on the front of the seat into the seat holder (#2) 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.
11