Operation Manual

ManualsBrandsSym ManualsScooterJet 4 - 50R

1.CONTENTS

1. Contents .................................................................................................................. 1

2. Control location ........................................................................................................ 3

3. Before riding ............................................................................................................ 4

4. Safe riding ............................................................................................................... 4

5. Driving ..................................................................................................................... 5

6. Use genuine spare parts .......................................................................................... 5

7. Use of each component ........................................................................................... 6

Gauges .................................................................................................................... 6

Operation of ignition switch ...................................................................................... 7

Operation of steering handle lock switch .................................................................. 7

Operation of seat open switch .................................................................................. 7

Use of buttons ......................................................................................................... 7

Storage box ................................................................................................................. 9

Safety helmet hook .................................................................................................... 10

Fuel tank cap ........................................................................................................... 10

Brake....................................................................................................................... 10

8. Important points and cautions for starting engine ................................................... 11

9. The best way to drive off ........................................................................................ 12

The control of throttle valve handle ......................................................................... 12

Parking method ..................................................................................................... 12

10.Inspection and maintenance before riding ............................................................... 13

Routine inspection ................................................................................................. 13

Engine oil inspection and change ........................................................................... 13

Fuel inspection ........................................................................................................ 14

Transmission oil inspection and change ................................................................... 14

Inspection and adjustment of brake free play .......................................................... 15

Disc brake inspection (depending on models) ......................................................... 16

Throttle valve handle clearance adjustment ............................................................ 17

Inspection and maintenance of battery ................................................................... 17

Tire inspection ....................................................................................................... 18

Steering handle front shock absorbers inspection ................................................... 18

Checking and changing fuses ................................................................................. 19

Checking the turn signal lights and horn ................................................................. 19

Checking the front and rear lights ........................................................................... 19

Checking the brake light ......................................................................................... 19

Summary of content (23 pages)

PAGE 1
.CONTENTS 1. 2. 3. 4. 5. 6. 7. Contents .................................................................................................................. Control location ........................................................................................................ Before riding ............................................................................................................ Safe riding ..................................................................................................
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1. CONTENTS Checking for fuel leakage ........................................................................................ 20 Checking the lubrication of body’s various mechanisms .......................................... 20 Checking the spark plug ......................................................................................... 20 Checking the air cleaner ......................................................................................... 20 11.
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2. CONTROL LOCATION MODEL: JD05W1-6/JD05W2-6/JD05W4-6 Helmet hook Engine start control switch Front turn signal light Air Cleaner Front light/ Position light Side stand Engine oil tank cap Storage box Engine number Kick starter pedal Fuel tank cap Frame number Ignition switch Tail/Stop light Fuses &C.D.
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3. BEFORE RIDING This manual describes the correct usage of this scooter including safety riding, simple inspection methods and so on. For a more comfortable and safety riding, please read this manual carefully. For your benefit, please ask your SANYANG dealer the operating manual and carefully read the following:  Correct use of the motorcycle.  Pre-delivery inspection and maintenance.
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. DRIVING      Keep the related parts of your body such as arms, palms, lumbar, and toes relax and ride with the most comfortable posture in order to be able to react quickly whenever it is necessary. Rider’s posture will greatly affect riding safety. Always keep your body’s gravity in the center of the saddle, if your body’s gravity is on the rear part of saddle, the front wheel load will be reduced, and this will cause the steering handle shaking.
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7. USE OF EACH COMPONENT (The following is SYM 2 stroke air-cooling 50 c.c. scooter’s basic operation, and they could vary from different individual models. Please consult the end of this manual.) §GAUGES § The panel figure for speedometer may vary from model to model, but the location usually are the same.
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§OPERATION OF IGNITION SWITCH § IGNITION SWITCH “ON” position:  Engine can be started in this position.  Ignition switch key can not be removed. “OFF” position:  Engine is shut off and can not be started in this position .  Ignition switch key can be removed. §OPERATION OF STEERING HANDLE LOCK SWITCH § “Steering handle lock” position  Turn the steering handle to left and insert the key into, press ignition switch key clockwise and then lightly turn it to left to the “lock” position.
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 Light Switches When the switch is turned to this position as the engine is being started, headlight, rear light, instrument panel light, and position light will come on. This is the high beam of headlight switching switch. When the switch is turned to this position as the engine is being started, rear light, instrument panel light, and position light will come on.  When the switch is turned to this position, all lights will go off.
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Engine start control switch  Engine start control switch The switch button position is under seat. “ON” position: Engine is locked and can not be started engine in this position. “OFF” position: When the ignition switch is “on” position, the start control switch is “off” position, press electrical starter button while holding the front or rear brake lever will start the engine.  Horn Switch Press this button down when ignition switch is in the “ON” position, the horn will sound.
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§SAFETY HELMET HOOK§  Stop the scooter, and hook the safety helmet chin belt the hook. Hook CAUTION:  Do not hang the safety helmet onto this hook when riding to avoid damaging motorcycle and loosing safety helmet’s function. §FUEL TANK CAP§ 1.Insert the key into the seat lock and open the seat, and turn the fuel cap anticlockwise, then the cap can be removed. 2. Do not fill above the fuel upper limit when refueling. 3.
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8. IMPORTANT POINTS AND CAUTIONS FOR STARTING ENGINE CAUTION:  Please check the oil and fuel volume are adequate or not before starting the engine.  To start the engine the main parking stand must be firmly on the ground and the brake is applied on the rear wheel to prevent the motorcycle from moving forward suddenly. 1.Turn ignition switch key to the ”ON” position. 2.Apply hand (foot) rear wheel brake. 3.Do not accelerate, press starter button when the brake is applied.
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9. THE BEST WAY TO DRIVE OFF  Turn on the turn signal light before moving, and make sure no vehicle is coming from behind. Then, drive off. §THE CONTROL OF THROTTLE VALVE HANDLE § Acceleration : To increase speed. When riding on an inclined road, turn the throttle valve handle slowly to allow the engine to output its power. Deceleration : To decrease speed. Deceleration Acceleration §PARKING METHOD §  When approaching the parking lot: 1.
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10. INSPECTION AND MAINTENANCE BEFORE RIDING §ROUTINE INSPECTION § Check Items Check Key Points Engine Oil Is there enough engine oil? Fuel Is it enough? Is it Octane 90 or above Front Braking condition? (Brake lever free play: 10~20mm) Rear Braking condition? (Brake lever free play: 10~20mm) Front Is tire pressure normal? 2 (Standard: 1.75kg/cm ) Rear Is tire pressure normal? 2 2 (Standard: 2.0 kg/cm for 1 person, 2.
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§INSPECTION AND REPLENISHMENT OF ENGINE OIL§ Inspection:  Turn the main switch to the “ON” position, if the oil warning light comes on continuously, this indicates the engine oil level is too low, add oil as required.  Check oil tank and oil lines for leakage.  To remind you:  To continue ride the scooter under low oil level condition will result in an engine seizure due to lack of lubrication of engine parts.
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§INSPECTION AND ADJUSTMENT OF BRAKE FREE PLAY§ INSPECTION: (Brake lever free play must checked with the engine shut off.)  Brake lever and pedal free play for front and rear wheels. ◆If checking the hand-braking lever for front wheels, its free play (the stroke of hand-braking lever from no braking to initial braking) should be 10~20mm. It is abnormal if the feel is spongy when holding the hand-braking lever forcefully.
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§DISK BRAKE INSPECTION§(Applicable for model equipped with disc brake.)  Visual check brake lines for leakage, or damage, check brake lines connections for looseness using a wrench or similar tool, and check whether steering handle vibration in driving, or any parts’ interference may have damage the brake lines. If so, bring your scooter to your SANYANG dealer for repairing or service.
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§THROTTLE VALVE HANDLE CLEARANCE ADJUSTMENT §   Correct clearance allows throttle vale handle to rotate 2~6mm. Loosen the lock nut first, then turn the adjust nut to adjust. Tighten the lock nut securely when finished. 2~6 mm Check Items: 1. Check throttle valve cable to see if it can be moved smoothly from a closed position to a wide open position. 2. Rotate steering handle from side to side to check if the throttle valve cable is interfered. 3.
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§TIRE INSPECTION §  Tires should be checked and inflated with the engine shut off.  If a tire’s ground contacting curve is abnormal, check it with an air pressure gauge and inflate it to the specified pressure.  Tires pressure must be checked with an air pressure gauge when cold. PLEASE REFER TO SPECIFICATIONS FOR STANDARD TIRE PRESSURE Foreign materials (nails or small stones)  Crack and damage  Tread wear indicator Visual check tires for frontal and lateral side walls for crack or damage.
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§CHECKING AND CHANGING FUSES § Turn off ignition switch, and check fuses if they are intact. Replace the blown fuse with a new one having the same specified amperage rating (10A). Using a fuse of more than (10A) amperes, a brass or iron wire to replace a blown fuse is strictly prohibited to avoid damaging the electrical system and the circuit.  Remove the storage box, and you’ll find the fuse holder near battery.  Open the fuse box cover, and pull out the fuse. Check it for damage or broken.
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§CHECKING FOR FUEL LEAKAGE§  Check fuel tank, fuel cup, fuel hose, carburetor for leakage. §CHECKING THE LUBRICATION OF BODY’S VARIOUS MECHANISMS§  Check the body’s pivot points if they have enough lubrication. (for example, the pivot points on the main stand, the side stand, and the brake lever…etc.). §CHECKING THE SPARK PLUG§  Remove the cap of spark plug cable (remove the spark plug using the spark plug wrench in the tool kit.  Check the electrode if it is dirty or fouled by carbon deposits.
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11. WHEN THERE IS AN ABNORMAL CONDITION OR A TROUBLE §DIAGNOSIS WHEN ENGINE DOES NOT START § (1). Has the ignition switch key been turned to the (2). Is there enough fuel in the fuel tank? “ON” position? For rear wheel For front wheel Turn Signal Switch Horn Switch (4). Turn the ignition switch key to the “ON” position, and press horn button down, if the horn does not sound, the fuse may have been blown.
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12.
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13. SPECIFICATION Model JET 4 R 50/ JET 4 R 50 Naked (JD05W Series) Item Specification Length 1900mm Width 665mm Height 1040mm Wheel base 1330mm Net Weight 113kg (Front:43.5kg Rear:69.5kg) Model Single cylinder,2- stroke, forced air cooled engine Fuel required Unleaded gasoline (octane 90 or higher) Displacement 49.5c.c. Compression ratio 12.2 :1 2.3kw/7500 rpm(Apply to model: Speed 1.84kw/8500 rpm(Apply to model: Speed limited:45km/h) limited:25 km/h) Maximum HP 1.84 kw/6500 rpm(Apply to model: Speed 2.