GAS GAS MC 85 2023 User Manual (English)

Questions and Answers:

L
Lisa BryanAug 7, 2025
Why does my GAS GAS Motorcycle engine overheat?
- A
  Alexander ThomasAug 7, 2025
  Your GAS GAS Motorcycle engine may be overheating due to several reasons: there might be too little coolant in the cooling system, indicating a need to check for leaks and the coolant level; insufficient air stream, suggesting you should switch off the engine when standing; dirty radiator fins, which you can resolve by cleaning them; foam formation in the cooling system, requiring you to drain and refill the coolant; a damaged cylinder head or cylinder head gasket, which should be checked; a bent radiator hose, which you should change; or an incorrect ignition point due to a loose stator, meaning you should adjust the ignition system.
S
Samantha MontgomeryAug 17, 2025
What to do if gear oil exits at the vent hose on my GAS GAS MC 85 2023?
- A
  Amanda DavisAug 18, 2025
  If gear oil is coming out of the vent hose on your GAS GAS Motorcycle, it's likely that too much gear oil was added. You should check the gear oil level.
R
rcarterAug 27, 2025
Why is my GAS GAS MC 85 2023 Motorcycle emitting white smoke?
- D
  Darius GarciaAug 27, 2025
  White smoke (steam) from the exhaust of your GAS GAS Motorcycle usually indicates a damaged cylinder head or cylinder head gasket. You should check these parts.

GAS GAS MC 85 2023 Specifications

General

Engine Type	Single-cylinder, 2-stroke
Displacement	84.9 cc
Starter	Kickstarter
Transmission	6-speed
Clutch	Wet multi-disc
Cooling System	Liquid cooled
Frame	Steel
Rear Suspension	Monoshock
Front Brake	Disc brake
Rear Brake	Disc brake

Summary

OWNER'S MANUAL 2023

MEANS OF REPRESENTATION

Symbols Used

Defines symbols indicating expected reactions, expert work, and information types.

Formats Used

Explains typographical formats like proprietary names and underlined terms.

SAFETY ADVICE

Intended Use

Defines the proper use of the vehicle for racing and closed-off areas.

Misuse

Warns against improper use and non-specified fluids.

Degrees of Risk and Symbols

Explains danger, warning, caution, and note symbols.

Safe Operation

Outlines conditions for safe operation, including rider fitness and technical condition.

Protective Clothing

Stresses the importance of appropriate protective gear for riders.

Owner's Manual

Highlights the importance of reading the manual for operation and safety.

IMPORTANT NOTES

Manufacturer Warranty

Explains warranty conditions and voiding clauses.

Spare Parts and Accessories

Recommends using approved parts and installation by authorized workshops.

Service

Emphasizes proper service for operation and wear prevention.

VIEW OF VEHICLE

Vehicle View - Front Left

Shows a diagram of the motorcycle's front left side with labeled parts.

Vehicle View - Rear Right

Displays a diagram of the motorcycle's rear right side with labeled parts.

SERIAL NUMBERS

Vehicle Identification Number

Specifies the location of the VIN on the steering head.

Engine Number

Identifies the engine number's location on the engine sprocket area.

Shock Absorber Article Number

Shows where the shock absorber article number is stamped.

CONTROLS

Clutch Lever

Describes the hydraulic clutch lever on the left handlebar.

Hand Brake Lever

Details the front brake lever on the right handlebar.

Throttle Grip

Identifies the throttle grip on the right handlebar.

Stop Button

Explains the function and possible states of the engine stop button.

Fuel Tap

Explains the operation of the fuel tap to control fuel supply.

Shift Lever

Locates the shift lever on the left side of the engine.

PREPARING FOR USE

Advice on First Use

Offers essential advice for initial preparation, rider readiness, and safety.

Running In the Engine

Provides guidelines for the engine break-in period to ensure longevity.

Preparing for Difficult Conditions

Details preparations for operating the vehicle in challenging environments like sand or mud.

Preparing for Dry Sand

Outlines specific checks for riding on dry sandy terrain.

RIDING INSTRUCTIONS

Pre-Ride Checks

Lists critical checks and maintenance measures before riding.

Starting the Vehicle

Explains the procedure for safely starting the motorcycle engine.

Shifting and Riding

Details techniques for shifting gears and general riding practices.

Braking

Provides essential information and warnings about braking procedures.

Stopping and Parking

Explains the correct procedure for stopping and parking the motorcycle safely.

Refueling

Covers safety precautions and procedures for refueling the vehicle.

SERVICE SCHEDULE

Required Work

Lists mandatory maintenance tasks with their service intervals.

Recommended Work

Suggests additional maintenance tasks for optimal performance and longevity.

TUNING THE CHASSIS

Adjusting Fork Air Pressure

Provides instructions for adjusting the air pressure in the front fork suspension.

Adjusting Spring Preload of Shock Absorber

Details the steps for adjusting the spring preload on the shock absorber.

Adjusting Riding Sag

Guides on how to adjust the riding sag by selecting and mounting a suitable spring.

SERVICE WORK ON THE CHASSIS

Bleeding the Fork Legs

Describes the process of bleeding air from the fork legs.

Removing Fork Legs

Details the procedure for removing the front fork legs.

Installing Fork Legs

Explains the steps for correctly installing the front fork legs.

Removing Lower Triple Clamp

Guides on how to remove the lower triple clamp assembly.

Installing Lower Triple Clamp

Explains the procedure for installing the lower triple clamp assembly.

Checking Steering Head Bearing Play

Describes how to check for play in the steering head bearing.

Adjusting Steering Head Bearing Play

Details the process for adjusting the steering head bearing play.

Removing Shock Absorber

Explains how to remove the rear shock absorber.

Installing Shock Absorber

Guides on installing the rear shock absorber.

Cleaning Air Filter and Air Filter Box

Provides steps for cleaning the air filter and its box.

Cleaning the Chain

Provides steps for cleaning the drive chain.

Checking Chain Tension

Explains how to check the drive chain tension.

Adjusting Chain Tension

Details the process for adjusting the drive chain tension.

Checking Frame

Explains how to inspect the motorcycle frame for damage.

Checking Throttle Cable Routing

Details how to check the throttle cable routing for proper placement.

Adjusting Clutch Lever Position

Guides on adjusting the basic position of the clutch lever.

Checking Hydraulic Clutch Fluid Level

Describes how to check the fluid level in the hydraulic clutch system.

Changing Hydraulic Clutch Fluid

Details the procedure for changing the hydraulic clutch fluid.

BRAKE SYSTEM

Checking Hand Brake Lever Free Travel

Explains how to check and adjust the free travel of the front brake lever.

Checking Brake Discs

Guides on checking the thickness and condition of the brake discs.

Checking Front Brake Fluid Level

Explains how to check the front brake fluid level.

Adding Front Brake Fluid

Details the procedure for adding front brake fluid.

Changing Front Brake Linings

Details the procedure for changing the front brake linings.

Checking Rear Brake Fluid Level

Explains how to check the rear brake fluid level.

Adding Rear Brake Fluid

Details the procedure for adding rear brake fluid.

Checking Rear Brake Linings

Guides on checking the minimum thickness and condition of rear brake linings.

Changing Rear Brake Linings

Details the procedure for changing the rear brake linings.

WHEELS, TIRES

Removing Front Wheel

Explains how to remove the front wheel.

Installing Front Wheel

Details the procedure for installing the front wheel.

Removing Rear Wheel

Explains how to remove the rear wheel.

Installing Rear Wheel

Details the procedure for installing the rear wheel.

Checking Tire Condition

Guides on inspecting tires for damage, wear, and age.

Checking Tire Pressure

Explains how to check tire pressure when tires are cold.

Checking Spoke Tension

Describes how to check spoke tension for wheel integrity.

COOLING SYSTEM

Cooling System Overview

Explains the basic function of the cooling system and its components.

Radiator Cover

Discusses the radiator covers and their installation based on ambient temperature.

Checking Antifreeze and Coolant Level

Guides on checking antifreeze protection and coolant levels.

Draining the Coolant

Details the procedure for draining the cooling system.

Refilling with Coolant

Guides on refilling the cooling system with coolant.

TUNING THE ENGINE

Carburetor Tuning

Covers general principles and components of carburetor tuning.

Adjusting Idle Speed

Details how to adjust the engine's idle speed.

Changing Ignition Timing Map

Guides on switching between performance and soft ignition timing maps.

Adjusting Basic Shift Lever Position

Details the process for adjusting the shift lever's position.

SERVICE WORK ON THE ENGINE

Checking Gear Oil Level

Explains how to check the gear oil level.

Changing Gear Oil

Details the procedure for changing the gear oil.

Adding Gear Oil

Guides on how to add gear oil to the transmission.

CLEANING, CARE

Cleaning the Motorcycle

Outlines the proper steps and precautions for cleaning the motorcycle.

STORAGE

Storage Preparation

Details the steps to prepare the motorcycle for long-term storage.

Preparing for Use After Storage

Guides on how to prepare the motorcycle for use after it has been stored.

TROUBLESHOOTING

TECHNICAL DATA

Engine Specifications

Lists technical details about the engine, including dimensions and ratios.

Engine Tightening Torques

Provides torque specifications for various engine screws and nuts.

Carburetor Specifications

Lists details about the carburetor type and settings.

Chassis Specifications

Lists technical details about the motorcycle's chassis, frame, and suspension.

Chassis Tightening Torques

Provides torque specifications for various chassis components.

SUBSTANCES

Brake Fluid

Specifies recommended brake fluid types and standards.

Coolant

Provides guidelines for coolant and antifreeze protection.

Engine Oil, 2-Stroke

Details recommended 2-stroke engine oil types.

AUXILIARY SUBSTANCES

STANDARDS

LIST OF ABBREVIATIONS

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