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Notice

All instructions, warranties and other collateral  

documents are subject to change at the sole discretion  

of Horizon Hobby, Inc. For up-to-date product literature, 

visit http://www.horizonhobby.com and click on the 

support tab for this product.

Meaning of Special Language

The following terms are used throughout the product 

literature to indicate various levels of potential harm 

when operating this product:

NOTICE

Procedures, which if not properly followed, 

create a possibility of physical property damage 

AND a little or no possibility of injury.

CAUTION

:  Procedures, which if not properly followed, 

create the probability of physical property 

damage AND a possibility of serious injury.

WARNING

:  Procedures, which if not properly followed, 

create the probability of property damage, 

collateral damage, and serious injury OR create a 

high probability of superficial injury.

 

WARNING

: Read the ENTIRE instruction manual to 

become familiar with the features of the product before 

operating. Failure to operate the product correctly can result 

in damage to the product, personal property and cause 

serious injury. 
This is a sophisticated hobby product and NOT a toy. It must 

be operated with caution and common sense and requires 

some basic mechanical ability. Failure to operate this Product 

in a safe and responsible manner could result in injury or 

damage to the product or other property. This product is not 

intended for use by children without direct adult supervision. 

Do not attempt disassembly, use with incompatible 

components or augment product in any way without 

the approval of Horizon Hobby, Inc. This manual contains 

instructions for safety, operation and maintenance. It is 

essential to read and follow all the instructions and warnings 

in the manual, prior to assembly, setup or use, in order to 

operate correctly and avoid damage or serious injury.

Introduction

Thank you for choosing the 810. This is a highly developed 

RC model that features a sophisticated radio system and a 

nitro fuel-powered engine. It does require some mechanical 

experience and direct adult supervision. This guide contains 

the basic instructions and drawings needed to operate and 

maintain your new 810. Please take the time to read through 

these instructions completely before attempting to run your 

new model. In addition to the service information available 

in this operations guide, our online Support - Answer 

Center is available at www.losi.com for performance tips 

and troubleshooting questions. 

Your hobby dealer cannot 

under any circumstances accept a model for return or 

exchange that has been run.

 We are confident you will be 

satisfied with the high-speed performance in this durable and 

resilient vehicle. 
Understanding that you are anxiously wanting to get 

your 810 ready for the open road, it will be to your long 

term benefit to make the effort and read through the 

entire manual. In the following pages you will find all the 

information you will need to set up as well as operate your 

new 810 to its full potential.

If you are an experienced RC hobbyist, or new to 

RC vehicles, it will benefit you to read all enclosed 

information.

From everyone at Losi we would like to thank you again for 

choosing the 810. Our goal is helping people have fun and 

enjoy using our products.

Register your Losi Product Online

Register your 810 now and be the first to find out  

about the latest options parts, product updates and more.  

Log on to www.LOSI.com and follow the product registration 

link to stay connected.

Caution:

Age Recommendation: 14 years or over. 

This is not a toy. 

This product is not intended for use by children without 

direct adult supervision.
This vehicle is capable of extreme speed and careful attention 

and care must be used when operating the 810. 
When driving the 810 it is important that you take measures 

to avoid someone being hit by the vehicle. You may cause 

serious injury to another person, or to personal property 

should you make contact while running the 810. Before 

operating the 810 you must read and follow all of the 

following safety precautions and warnings.

Summary of Contents for 810

Page 1: ...ission of Bachmann Industries Inc Losi DSM and Nitrotane are trademarks or registered trademarks of Horizon Hobby Inc Not responsible for errors Losi a Division of Horizon Hobby Inc Before operating t...

Page 2: ...that features a sophisticated radio system and a nitro fuel powered engine It does require some mechanical experience and direct adult supervision This guide contains the basic instructions and drawi...

Page 3: ...stic stunts Warnings The 810 is powered by a special fuel containing flammable liquids and special care must be taken as noted below Model fuel is dangerous if handled carelessly Follow all directions...

Page 4: ...harger to meet your requirements Chargers can be of two primary types for their source of power a 100 240V wall charger or one which requires a 12V power supply Follow the charger manufacturer s instr...

Page 5: ...Linkage Throttle Servo Brake Linkage Air Cleaner On Off Switch Radio Box Steering Servo Front Camber Link Front Shocks Front Suspension Arm Fuel Line Steering Link Tie Rod Exhaust Pipe Fuel Filter Pr...

Page 6: ...6 810 Radio System with Callouts Throttle Servo Steering Servo Transmitter AUXILIARY STEERING THROTTLE BIND Receiver Bind Plug...

Page 7: ...batteries 12 Binding LED Blinks when binding solid indicates binding complete on reverse side Radio Operation It is important that you familiarize yourself with the radio system as this is your direc...

Page 8: ...e please repeat steps 1 6 Should this not correct the problem please call Horizon Service Repair for further assistance 8 The Bind process is complete Your vehicle s radio system should be ready for u...

Page 9: ...eed threaded needle valves The low speed needle is located in the front of the moving slide The high speed needle sticks straight up at the back of the carburetor Both feature a slotted head that is u...

Page 10: ...rning the high speed needle clockwise in one hour increments until it runs smoothly If the engine isn t smoking or starts to die after acceleration it is too lean and you must richen the mixture by tu...

Page 11: ...r running Make sure you use proper dirt tires if running off road Never run the model with old or discharged batteries especially dry cells in the model If the model gets stuck do not pull the throttl...

Page 12: ...ower The position can be easily adjusted by simply moving the top of the shock to another hole The standard location works best on most surfaces Moving the top of the shock inward a hole will slow ste...

Page 13: ...en changing shock locations on the arm it will be necessary to go down one spring rate when moving out on the arm Static Camber Having the same definition as for the front end and measured in the same...

Page 14: ...r 810 Many questions are the result of simple user errors or minor adjustments which are easily addressed If after reading below you cannot resolve your problem then please contact the appropriate pro...

Page 15: ...e threads on the end of the shock shaft and apply thread locker LOSA99202 to the threads 2 Install the small shock piston washer and shock piston using the 4 40 mini lock nut on the shock shaft to sec...

Page 16: ...exclusive remedies Horizon reserves the right to inspect any and all equipment involved in a warranty claim Repair or replacement decisions are at the sole discretion of Horizon This warranty does not...

Page 17: ...arranty consideration Be sure your name address and RMA number are clearly written on the outside of the shipping carton Notice Do not ship batteries to Horizon If you have any issue with a battery pl...

Page 18: ...U LV MT NL PL PT RO SE SI SK UK Declaration of Conformity in accordance with ISO IEC 17050 1 No HH20100823 Product s LOS 1 8 810 Buggy RTR Item Number s LOSB0021 Equipment class 2 The object of declar...

Page 19: ...LOSR2119 3 4 Heat Sink Orange 44 99 LOSR2121 3 4 Head Protector Screws 4 99 LOSR2123 3 4 Carburetor Complete 44 99 LOSR2124 3 4 Carb O Rings Bellows 4 99 LOSR2128 3 4 Screw Hardware Set 10 7 99 LOSR21...

Page 20: ...Center Grease Grease 1000mAh 3degrees 2degrees 32mm 1 5degrees 2spacersonbothsides 2 0mm 4holes 1mm 30wt 102 4mmCentertoCenter Position2 B Position2 Center Grease Losi3 4 Nitrotane20 Use1 6mmSwayBarf...

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