HYOSUNG RX125 Owner's Manual
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IMPORTANT
BREAK-IN INFORMATION FOR
YOUR MOTORCYCLE
The first 1,000km(600miles) are the most
important in the life of your motorcycle .
Proper break-in operation during this time will
help ensure maximum life and performance
from your new motorcycle.
Hyosung parts are manufactured of high quality
materials, and manufactured parts are finished
to close tolerances. Proper break-in operation
allows the machined surfaces to polish each
other and mate smoothly.
Motorcycle reliability and performance depend
on special care and restraint exercised during
the break-in period. It is especially important
that you avoid operating the engine in a man-
ner which could expose the engine parts to
excessive heat.
Please refer to the BREAK-IN section for spe-
cific break-in recommendations.
WARNING/CAUTION/NOTE
Please read this manual and follow its
instructions carefully. To emphasize special
informa
tion the words WARNING, CAUTION and
NOTE carry special meanings and should be
carefully reviewed.
▲WARNING
!
The personal safety of the rider may be
involved. Disregarding this information could
result in injury to the rider.
▲CAUTION
!
These instructions point out special service
procedures or precautions that must be fol-
lowed to avoid damaging the machine.
NOTE: This provides special information to
make maintenance easier or important instruc-
tions clearer.
1

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Summary of Contents for HYOSUNG RX125

  • Page 1 Proper break-in operation during this time will help ensure maximum life and performance ▲WARNING from your new motorcycle. Hyosung parts are manufactured of high quality The personal safety of the rider may be materials, and manufactured parts are finished involved. Disregarding this information could to close tolerances.
  • Page 2 FOREWORD THANK YOU for choosing Hyosung. We at All information, illustrations photographs and Hyosung have designed, tested and produced specifications contained in this manual are this motorcycle using the most modern tech- based on the latest product information avail- nology available to provide you with many able at the time of publication.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. CONSUMER INFORMATION 5. BREAK-IN ACCESSORY INSTALLATION AND PRECAUTION SAFETY TIPS 6. INSPECTION BEFORE RIDING SAFE RIDING RECOMMENDATION FOR MOTORCYCLE RIDERS 7. PERIODIC MAINTENANCE SERIAL NUMBER LOCATION LUBRICATION ENGINE 2. NAMES OF EACH PARTS CHASSIS 8. INSPECTION AND REPAIR 3.
  • Page 4: Consumer Information

    (5) Certain accessories displace the rider conditions. It is not possible for Hyosung to from his or her normal riding position. This test each accessory on the market or combi-...
  • Page 5: Serial Number Location

    WEAR A HELMET SERIAL NUMBER LOCATION Motorcycle safety equipment starts with a quality safety helmet. One of the most The frame and/or engine serial numbers are serious injuries that can happen is a head used to register the motorcycle. They are injury.
  • Page 6: Names Of Each Parts

    2.NAMES OF EACH PARTS ① Clutch lever ② Left handle switch ③ Instrument panel ④ Ignition switch ⑤ Right handle switch ⑥ Throttle grip ⑦ Front brake lever ⑧ Fuel cock ⑨ Gear shifting lever ⑩ Side stand ⑪ Rear brake pedal ⑫...
  • Page 7: Controls

    The meutral indicator lamp will come on when the transmission is in neutral. The lamp will go out when you shift into any gear other than neutral. HYOSUNG HYOSUNG ⑥ TURN SIGNAL INDICATOR LAMP When the turn signals are being operated either to the right or to the left, the indicator will flash at the same time.
  • Page 8: Left Handlebar Switch

    ▲CAUTION LEFT HANDLEBAR SWITCH Always use the turn signals when you intend to change lanes or make a turn. Always be sure to turn the turn signal switch to the “OFF”position after completing the turn or lane change. ④ CLUTCH LEVER Using to cut off dilivery power at rear wheel when starting engine or shifting gear.
  • Page 9: Supply Of Gasoline

    ② STARTER BUTTON To open the fuel tank cap, remove the end Push the electric starter button to rotate of vent tube from the vehicle body and turn the starter motor.The transmission is in fuel tank cap counter clockwise. To close neutral for safety during start and squeez- the fuel tank cap, turn it clockwise and ing clutch.
  • Page 10: Carburetor Choke Lever

    CARBURETOR CHOKE LEVER ◉ “OFF” Position Turn the lever to the “OFF”position whenever stopping the engine for more than a few minutes. After the engine starts next full com- l e t e l y t h e choke lever toward left, was returned the lever originally position as halfway.
  • Page 11: Rear Brake Pedal

    This motorcycle is equipped with a 5 ▲CAUTION speed constant mesh transmission switch operates as shown in the figure. After switching the fuelcock lever to the The shift lever is attached to a ratchet “RES”position, it is advisable that the tank be type mechanism in the transmission.
  • Page 12: Stand

    STAND REAR SUSPENSION ① Side stand. The rear shock absorber spring preload is adjustable to compensate for rider, load, riding style and road conditions. ▲CAUTION Before starting off, check that the side stand i s r e t u r n e d t o f u l l y u p p o s i t i o n a n d i s n o t hanging down.
  • Page 13: Break-In

    OBSERVE YOUR FIRST, AND MOST proper break-in is to achieving maxi- 1,000km SERVICE The 1,000km (600miles) service is the mum life and performance from your new Hyosung. The following guidelines most important service your motorcycle explain proper break-in procedures. will receive.
  • Page 14: Inspection Before Riding

    During break-in procedures all of the � LUBRICATION engine components will have seated in. All adjustments will be restored, all fasten- First Every Every ers will be tightened, and the dirty oil and 1,000km 4,000km 8,000km oil filter will be replaced. Throttle cable Motor oil ←...
  • Page 15: Inspection And Repair

    8. INSPECTION AND REPAIR INSPECTION OF BATTERY SOLUTION LEVEL This motorcycle is used MF(Maintenance Free) battery of airtight type. TOOL Inspection or supplement of battery do unnecessary. To assist you in the performance of periodic maintenance, a tool kit is supplied and is located under the seat.
  • Page 16: Clean Of Air Cleaner

    ▲CAUTION FUEL HOSE ∙Keep the battery away from fires. ∙When disassemble the battery wire, take off � termminal first with the ignition switch “OFF” position. When assemble, � terminal first. ∙Fasten certainly the battery wires. CLEAN OF AIR CLEANER Replace the fuel hose every 4 years. 1.
  • Page 17: Engine Oil

    4,000km. be used, it is best to consult your The oil should always be changed when the Hyosung dealer before selecting an engine is hot so that the oil will drain alternate plug or heat range. The throughly from the engine.
  • Page 18: Carburetor

    (2) Remove the engine oil filter plug ①. (4) Remove the three nuts. Remove the filter cap ⑥, pull out the element and replace with a new oil filter element. (5) Before replacing the oil filter cap ⑥, check to be sure that the filter spring ④ and cap “O”...
  • Page 19: Throttle Cable Adjustment

    Start up the engine and let the engine ▲CAUTION run until it warms up fully. After engine has warmed up, turn the A f t e r c o m p l e t i n g t h r o t t l e c a b l e throttle valve stopper in or out so that a d j u s t m e n t , c h e c k t h a t h a n d l e b a r t h e e n g i n e m a y r u n a t 1 , 4 5 0 ~ 1 , 5 5 0...
  • Page 20: Drive Chain Adjustment

    ① The clutch lever play. ② The lock nut ③ The clutch lever adjuster ④ The rubber boot ⑤ The cable adjuster ⑥ The clutch cable adjuster lock nut. If you find the play of the clutch incorrect, adjust it in the following way : �...
  • Page 21: Drive Chain Cleaning And Oiling

    : a hot muffler can burn you. lower mark while holding the motorcycle upright, replenish with the proper brake fluid that meets Hyosung’ s requirements. As the brake pads wear, the fluid level will drop to compensate for the new position of DRIVE CHAIN CLEANING AND OILING barke pads.
  • Page 22 If a pad is worn to the grooved limit line it must be replaced with a new one by your authorized Hyosung dealer or qualified service machanic. �...
  • Page 23: Tire

    ③ If the extension line is beyond the range, 25 psi 25 psi have the brake shoe assembly replaced by 2.00 kg/㎠ 2.25 kg/㎠ your Hyosung dealer to ensure safe opera- REAR 197 kpa 221 kpa tion. 29 psi 32 psi ◉...
  • Page 24: Replace Of The Lamp

    ◉ TURN SIGNAL LAMP REPLACE OF THE LAMP Requirement electric power of the lamp is following the chart. When replace the damaged lamp, always use the equal capacity. The use of a lamp other than rules may cause to excessive at the electric system or to damage the lamp.
  • Page 25: When The Engine Refuses To Start

    “ON” could have a major electrical problem. switch. You should consult your Hyosung dealer ③ If the ignition system is operating or a qualified service mechanic immedi- properly, a blue spark should jump ately.
  • Page 26: When Keeping For Long Period

    ▲CAUTION Front brake Disc brake Rear brake Internal expanding drum When occur any trouble, the best way is to consult your Hyosung dealer for TANK CAPACITIES repairs. Fuel tank 8.0ℓ WHEN KEEPING FOR LONG PERIOD 1. Supply enough the fuel in the fuel tank.
  • Page 27 WARNING Noise Control System (muffler assembly) TAMPERING WITH NOISE CONTROL SYSTEM PROHIBITED Owners are warned that the law may prohibit : (a) The removal or rendering inoperative by any person other than for purpose of mainte- nance, repair or replacement, of any device or element of design incorporated into any new vehicle for the purpose of noise control prior to its any sale of delivery to the ulti- mate purchaser or while it is in use ;...
  • Page 28 Prepared by HYOSUNG MOTORS & MACHINERY INC. Overseas Technical 1st Ed. JAN. 1999 Printed in KOREA...

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