KYMCO BET & WIN 50 Manuale utente

BET &WIN 50

PREFACE

This Service Manual describes the

technical features and servicing

procedures for the KYMCO B&W 50.

Section 1 contains the precautions for

all operations stated in this manual.

Read them carefully before any

operation is started.

Section 2 is the removal/installation

procedures for the frame covers which

are subject to higher removal/installation

frequency during maintenance and

servicing operations.

Section 3 describes the inspection/

adjustment procedures, safety rules and

service information for each part, starting

from periodic maintenance.

Sections 5 through 12 give instructions

for disassembly, assembly and adjustment

of engine parts. Section 13 is the

removal/ installation of chassis. Section

15 states the testing and measuring

methods of electrical equipment.

Most sections start with an assembly or

system illustration and troubleshooting

for the section. The subsequent pages

give detailed procedures for the section.

KWANG YANG MOTOR CO., LTD.

OVERSEAS SALES DEPARTMENT

OVERSEAS SERVICE SECTION

TABLE OF CONTENTS

GENERAL INFORMATION

EXHAUST MUFFLER/FRAME COVERS

INSPECTION/ADJUSTMENT

LUBRICATION SYSTEM

ENGINE REMOVAL/INSTALLATION

CYLINDER HEAD/CYLINDER/PISTON

KICK STARTER/DRIVE PULLEY/

CLUTCH/DRIVEN PULLEY

FINAL REDUCTION

A.C. GENERATOR

CRANKCASE/CRANKSHAFT

COOLING SYSTEM

CARBURETOR

STEERING HANDLEBAR/FRONT

WHEEL/FRONT BRAKE/FRONT

SHOCK ABSORBER/FRONT FORK

REAR BRAKE/REAR BRAKE

DRUN/REAR SHOCK ABSORBER`

ELECTRICAL EQUIPMENT

INSTRUMENT/SWITCHES/LIGHTS

EVAPORATIVE/EXHAUST EMISSION

CONTROL SYSTEM

CHASSIS ELECTRICAL

EQUIPMENT

ENGINE

The information and contents included in

this manual may be different from the

motorcycle in case specifications are

changed.

°Ø

E/M

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1. GENERAL INFORMATION

1-0

BET &WIN 50

__________________________________________________________________________________

GENERAL INFORMATION

__________________________________________________________________________________

ENGINE SERIAL NUMBER------------------------------------------- 1- 1

SPECIFICATIONS ------------------------------------------------------ 1- 2

SERVICE PRECAUTIONS--------------------------------------------- 1- 3

TORQUE VALUES ----------------------------------------------------- 1-13

SPECIAL TOOLS ------------------------------------------------------- 1-14

LUBRICATION POINTS----------------------------------------------- 1-15

WIRING DIAGRAM ---------------------------------------------------- 1-21

TROUBLESHOOTING ------------------------------------------------- 1-22

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1. GENERAL INFORMATION

1-1

BET &WIN 50

ENGINE SERIAL NUMBER

Location of Engine Serial Number

Location of Frame Serial Number

Vehicle Identification Serial Number

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1. GENERAL INFORMATION

1-2

BET &WIN 50

SPECIFICATIONS

Name & Model No.

B&W50

Overall length

1940mm

Overall width

740mm

Overall height

1173mm

Wheel base

1352mm

Engine type

Water cooled 2-stroke

Displacement

49.4cc

Fuel Used

nonleaded gasoline

Front wheel

52.5

Net weight (kg)

Rear wheel

67.5

Total

120

Front wheel

Gross weight(kg)

Rear wheel

114

Total

193

Front wheel

120/70-12 56J

Rear wheel

130/70-12 59J

Ground clearance

155mm

Perform

Braking distance (m)

4.4m /30km/H

ance

Min. turning radius

2300mm

Starting system

Starting motor &

Kick starter

Type

Gasoline,2-stroke

Cylinder arrangement

Single cylinder

Combustion chamber type

Semi-sphere

Bore x stroke (mm)

39.0 x 41.4

Compression ratio

7.2:1

Compression pressure

(kg/cm_-rpm)

11.8

Max. output (kw/rpm)

3.09/6500

Max. torque (kg-m/rpm)

0.5/6000

Intake

Open

Port

(1mm)

timin

Exhaust

Open

(1mm)

Valve

Intake

clearance (cold)

Exhaust

Idle speed (rpm)

2000±100rpm

Lubrication type

Separate type

Oil pump type

Plunger type

Oil filter type

Full-flow filtration

Oil capacity

1.1 liters

Exchanging

capacity

0.9 liters

Cooling Type

Water cooling

Air cleaner type & No

Sponge wet

Gear oil capacity

0.12 liters

Fuel capacity

10 liters

Type

¢ﬁ¢–

Piston dia.

Venturi dia.

14 equivalent

Type

CDI

Ignition timing

13.5°±2°/2000rpm

Spark plug

NGK

BR8HSA

Spark plug gap

0.6_0.7mm

Battery

Capacity

12V4AH

Clutch

Type

Dry multi-disc clutch

Type

Non-stage transmission

Operation

Automatic

centrifugal

type

Type

Two-stage reduction

Reduction

1st

ratio

2nd

Front

Caster angle

Axle

Connecting rod

Tire pressure

Front

1.75

(kg/cm_)

Rear

2.25

Turning

Left

42.5°

angle

Right

42.5°

Brake system

Front

Disk brake

type

Rear

Drum brake

Suspension

Front

Telescope

type

Rear

Unit

Frame type

Under pipe

Tires

Engine

Fuel System

Carburetor

Electrical Power Drive System

Reduction

Gear

Moving Device Damping

Device

Ignition System

System

Transmis-

sion Gear

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1. GENERAL INFORMATION

1-3

BET &WIN 50

SERVICE PRECAUTIONS

Make sure to install new gaskets, O-

rings, circlips, cotter pins, etc. when

reassembling.

When tightening bolts or nuts, begin with

larger-diameter to smaller ones at several

times, and tighten to the specified torque

diagonally.

Use genuine parts and lubricants.

When servicing the motorcycle, be sure to

use special tools for removal and

installation.

After disassembly, clean removed parts.

Lubricate sliding surfaces with engine oil

before reassembly.

KYMCO

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1. GENERAL INFORMATION

1-4

BET &WIN 50

Apply or add designated greases and

lubricants to the specified lubrication

points.

After reassembly, check all parts for

proper tightening and operation.

When two persons work together, pay

attention to the mutual working safety.

Disconnect the battery negative (-)

terminal before operation.

When using a spanner or other tools,

make sure not to damage the motorcycle

surface.

After operation, check all connecting

points, fasteners, and lines for proper

connection and installation.

When connecting the battery, the positive

(+) terminal must be connected first.

After connection, apply grease to the

battery terminals.

Terminal caps shall be installed securely.

KYMCO

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1. GENERAL INFORMATION

1-5

BET &WIN 50

If the fuse is burned out, find the cause

and repair it. Replace it with a new one

according to the specified capacity.

After operation, terminal caps shall be

installed securely.

When taking out the connector, the lock

on the connector shall be released before

operation.

Hold the connector body when

connecting or disconnecting it.

Do not pull the connector wire.

Check if any connector terminal is

bending, protruding or loose.

Confirm

Capacity

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1. GENERAL INFORMATION

1-6

BET &WIN 50

The connector shall be inserted

completely.

If the double connector has a lock, lock

it at the correct position.

Check if there is any loose wire.

Before connecting a terminal, check for

damaged terminal cover or loose

negative terminal.

Check the double connector cover for

proper coverage and installation.

Insert the terminal completely.

Check the terminal cover for proper

coverage.

Do not make the terminal cover opening

face up.

Secure wire harnesses to the frame with

their respective wire bands at the

designated locations.

Tighten the bands so that only the insulated

surfaces contact the wire harnesses.

Snapping!

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1. GENERAL INFORMATION

1-7

BET &WIN 50

After clamping, check each wire to make

sure it is secure.

Do not squeeze wires against the weld or

its clamp.

After clamping, check each harness to

make sure that it is not interfering with

any moving or sliding parts.

When fixing the wire harnesses, do not

make it contact the parts which will

generate high heat.

Route wire harnesses to avoid sharp

edges or corners. Avoid the projected

ends of bolts and screws.

Route wire harnesses passing through the

side of bolts and screws. Avoid the

projected ends of bolts and screws.

No Contact !

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1. GENERAL INFORMATION

1-8

BET &WIN 50

Route harnesses so they are neither

pulled tight nor have excessive slack.

Protect wires and harnesses with

electrical tape or tube if they contact a

sharp edge or corner.

When rubber protecting cover is used to

protect the wire harnesses, it shall be

installed securely.

Do not break the sheath of wire.

If a wire or harness is with a broken

sheath, repair by wrapping it with

protective tape or replace it.

When installing other parts, do not press

or squeeze the wires.

Do not

pull too

tight!

Do not press or

squeeze the wire.

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