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HYOSUNG RT125D User Manual

HYOSUNG RT125D
73 pages
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Part No. 99011HM5411
APR. 2007.
Printed in KOREA
1st Ed.
This owner’s manual contains important safety information.
Please read it carefully.
WARNING
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HYOSUNG RT125D Specifications

General IconGeneral
Power11.5 hp
Max Power RPM8500 rpm
Fuel SystemCarburetor
Transmission5-Speed
Front SuspensionTelescopic Fork
Rear BrakeDrum
Seat Height780 mm
Engine TypeSingle Cylinder, 4-Stroke
Displacement124 cm³
Cooling SystemAir
Front BrakeDisc
Fuel Tank Capacity12.5 L

Summary

Foreword

Important: Break-in Information

Warning, Caution, and Note

Explains the meaning of signal words like WARNING, CAUTION, and NOTE.

Consumer Information

Safe Riding Recommendations

Provides precautions for safe motorcycle riding and operation.

Wear a Helmet

Emphasizes wearing a helmet and eye protection for safety.

Riding Apparel

Advises on choosing comfortable and safe riding apparel.

Familiarize Yourself with the Motorcycle

Encourages practicing to become familiar with the motorcycle's controls.

Inspection Before Riding

Accessory Installation and Safety Tips

Serial Number Location

Fuel and Oil Recommendation

Fuel

Details the type of unleaded gasoline to use.

Engine Oil

Specifies the grade and type of engine oil recommended.

Names of Each Parts

Controls

Ignition Switch

Explains the function and positions of the ignition switch.

Ignition Key

Details the motorcycle's ignition keys and their identification number.

Instrument Panel

Describes the motorcycle's instrument panel indicators and displays.

Left Handle Switches

Explains the function of switches located on the left handlebar.

Right Handle Switches

Explains the function of switches located on the right handlebar.

Throttle Grip

Describes how engine speed is controlled via the throttle grip.

Light Switch

Details the operation of the motorcycle's light switch.

Starter Switch

Explains how to use the starter switch to start the engine.

Carburetor Choke Lever

Describes the function and use of the choke lever for cold starts.

Fuel Cock

Explains the operation and positions of the fuel cock.

Rear Brake Pedal

Details the operation of the rear brake pedal.

Gearshift Lever

Explains how to shift gears using the gearshift lever.

Stand

Describes the operation and safety features of the side stand.

Seat Lock

Explains how to separate and assemble the seat.

Rear Suspension

Details how to adjust the rear suspension spring pre-load.

Supply of Gasoline and Engine Oil

Gasoline

Provides instructions on how to refuel the motorcycle safely.

Engine Oil

Explains how to check the engine oil level and capacity.

Riding Tips

Starting the Engine

Provides instructions for starting the engine, considering cold and warm conditions.

Starting Off

Offers safety advice and procedures for starting to ride the motorcycle.

Using the Transmission

Explains how to use the transmission for optimal operation and safety.

Riding on Hills

Provides guidance on riding the motorcycle on uphill and downhill slopes.

Stopping and Parking

Details the correct procedure for stopping and parking the motorcycle.

Break-in

Maximum Throttle Opening Recommendations

Recommends throttle opening limits during the initial break-in period.

Avoid Constant Low Speed

Warns against maintaining a constant low speed during break-in.

Vary the Engine Speed

Advises on varying engine speed for proper break-in of engine components.

Breaking in the New Tires

Guides on how to break in new tires for maximum performance and safety.

Allow Engine Oil to Circulate Before Riding

Emphasizes allowing engine oil to circulate before applying load.

Observe First 1,000km Service

Highlights the importance of the initial 1,000km service for the motorcycle.

Inspection Before Riding

Periodic Maintenance

Lubrication Points

Identifies key points requiring lubrication for smooth operation and longevity.

Inspection and Repair

Tool

Lists the tools supplied with the motorcycle for maintenance.

Front Fork

Details checks for the front fork for proper operation and assembly.

Rear Shock Absorber

Guides on inspecting the rear shock absorber for oil leakage and spring condition.

Battery

Explains maintenance-free battery inspection and care.

Clean of Battery Terminal

Provides steps for cleaning battery terminals and reconnecting the battery.

Air Cleaner

Explains how to clean and maintain the air cleaner element.

Spark Plug

Describes how to clean and adjust the spark plug gap.

Carburetor

Covers carburetor adjustments for idling speed and throttle cable play.

Throttle Cable Adjustment

Explains how to adjust the throttle cable play for proper engine response.

Clutch Adjustment

Guides on adjusting the clutch cable play for proper clutch operation.

Drive Chain

Covers inspection, adjustment, cleaning, and oiling of the drive chain.

Brakes

Front Brake

Discusses checking brake fluid level and inspecting brake pads.

Brake Pads

Details how to inspect front brake pads for wear and replacement.

Brake Disk Inspection

Guides on checking the brake disk for damage or cracks.

Front Brake Fluid Supply

Explains how to replenish brake fluid in the front brake master cylinder.

Front Brake Lamp Switch

Describes the location and adjustment of the front brake lamp switch.

Rear Brake

Covers rear brake adjustment and lining wear limit checks.

Brake Lining Wear Limit

Explains how to check brake shoe wear using indicators on the rear brakes.

Rear Brake Lamp Switch

Details the location and adjustment of the rear brake lamp switch.

Tire

Tire Pressure

Explains the importance of correct tire pressure for handling and safety.

Cracks and Cuts

Guides on checking tires for visible cracks, cuts, or foreign materials.

Tire Tread Condition

Details how to inspect tire tread depth using wear indicators.

Rear Axle Nut

Advises on inspecting the rear axle shaft and jointing nut for loosening.

Spoke Nipple

Explains how to inspect spoke nipples for looseness and retighten them.

Replacement of the Lamp

Head Lamp

Details the procedure for replacing the motorcycle's headlamp bulb.

Turn Signal Lamp

Explains how to replace the turn signal lamp bulb.

Brake / Tail Lamp

Provides instructions for replacing the brake and tail lamp bulbs.

Fuse

Explains the location of the fuse box and how to check fuses.

When the Engine Refuses to Start

Trouble Shooting

Outlines troubleshooting steps for engine starting issues.

When Keeping for Long Period

Cleaning Procedure

Washing Your Motorcycle

Guides on how to wash the motorcycle properly.

Inspection After Cleaning

Advises on post-cleaning inspection and lubrication.

Label

Specifications

Dimensions and Dry Mass

Lists the motorcycle's physical dimensions and dry mass.

Engine

Details the engine type, bore, stroke, and displacement.

Transmission

Provides details on the clutch, final reduction, and gear ratios.

Chassis

Lists specifications for suspension, steering, tires, and brakes.

Electrical

Details specifications for ignition, battery, fuses, and lamps.

Capacities

Lists the capacities for fuel tank and engine oil.

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