KYMCO People S 250 User manual

PEOPL E 25 0
C 2003 by KWANG YANG Motor Co., Ltd.
First Edition, Mar 2003
All rights reserved. Any reproduction or unauthorized
use without the written permission of KWANG YANG
Motor Co., Ltd.
is expressly prohibited.
4122-LLJ3-S00

PEOPL E 25 0
PREFACE
This Service Manual describes the
technical features and servicing
procedures for the KYMCO People 250.
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 13 give instructions
for disassembly, assembly and adjustment
of engine parts. Section 14 is the
removal/ installation of chassis. Section
16 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
1
EXHAUST MUFFLER/FRAME COVERS
2
INSPECTION/ADJUSTMENT
3
LUBRICATION SYSTEM
4
ENGINE REMOVAL/INSTALLATION
5
CYLINDER HEAD/VALVES
6
CYLINDER/PISTON
7
DRIVE AND DRIVEN PULLEYS/V-
BELT
8
FINAL REDUCTION
9
A.C. GENERATOR/STARTER CLUTCH
10
CRANKCASE/CRANKSHAFT
11
COOLING SYSTEM
12
FUEL SYSTEM/CARBURETOR/FUEL
PUMP FUEL TANK
13
STEERING HANDLEBAR/FRONT
WHEEL/FRONT BRAKE/FRONT
SHOCK ABSORBER/FRONT FORK
14
REAR BRAKE/REAR FORK/REAR
WHEEL/REAR SHOCK ABSORBER`
15
BATTERY/CHARGING SYSTEM
16
IGNITION SYSTEM
17
STARTING SYSTEM
18
SWITCHES/HORN/FUEL UNIT /
T HERMO-STATIC
SWITCH/TEMPERATURE
GAUGE/INSTRUMENTS/ LIGHTS
19
The information and contents included in
this manual may be different from the
motorcycle in case specifications are
changed.
CHASSIS EQUIPMENT
ENGINE

1. GENERAL INFORMATION
1-0
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1
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
GENERAL INFORMATION
__________________________________________________________________________________
SERIAL NUMBER -------------------------------------------------------- 1-1
SPECIFICATION---------------------------------------------------------- 1-2
SERVICE PRECAUTIONS----------------------------------------------- 1-3
TORQUE VALUES ------------------------------------------------------- 1-7
SPECIAL TOOLS --------------------------------------------------------- 1-8
LUBRICATION POINTS------------------------------------------------- 1-9
CABLE &HARNESS ROUTING-----------------------------------------1-11
WIRING DIAGRAM-------------------------------------------------------------------1-18
TROUBLESHOOTING --------------------------------------------------1-19
1

1. GENERAL INFORMATION
1-1
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SERIAL NUMBER
Location of Engine Serial Number
Location of Frame Serial Number

1. GENERAL INFORMATION
1-2
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SPECIFICATIONS
Name & Model No.
BC50AA
Motorcycle Name & Type
PEOPLE 250
Overall length
2219mm
Overall width
742mm
Overall height
1145mm
Wheel base
1515mm
Engine type
Water cooled 4-stroke,
OHC engine
Displacement
249.1cc
Fuel Used
92# nonleaded gasoline
1 person (55kg)
Front wheel
86
weight (kg)
Rear wheel
127
Total
213
2 person
(110kg)
Front wheel
93
weight(kg)
Rear wheel
175
Total
268
Front wheel
110/70-16 52P
Rear wheel
140/70-16 65P
Ground clearance
145mm
Perform
-
Braking distance (m)
4.0m/30km/hr
ance
Min. turning radius
2180mm
Starting system
Starting motor
Type
Gasoline, 4-stroke
Cylinder arrangement
Single cylinder
Combustion chamber type
Semi-sphere
Valve arrangement
O.H.C.
Bore x stroke (mm)
72.7 x 60
Compression ratio
10.3:1
Compression pressure
(kg/cm_)
15±2
Max. output (kw/rpm)
13.93/7000
Max. torque (kg.m/rpm)
2.0/5500
BTDC
-8°
Port
Intake
ABDC
42°
timin
g
BBDC
33°
Exhaust
ATDC
1°
Valve
Intake
0.1
clearance (cold)
Exhaust
0.1
Idle speed (rpm)
1700±100rpm
Lubrication type
Forced pressure &
Wet sump
Oil pump type
Inner/outer rotor
type
Oil filter type
Full-flow filtration
Oil capacity
1.1 liters
Air cleaner type & No
Paper element, wet
Fuel capacity
8.0 liters
Type
CVK
Piston dia.
30
Venturi dia.
30 equivalent
Throttle type
Butterfly type
Type
CDI
Ignition timing
Repeatedly
Contact breaker
Non-contact point
type
Spark plug
NGK
DPR7EA-9
Spark plug gap
0.7mm
Battery
Capacity
12V10AH
Clutch
Type
Dry multi-disc clutch
Type
Non-stage transmission
Operation
Automatic
centrifugal
Type
Type
Two-stage reduction
Reduction
1st
0.83~2.2
ratio
Final
8.72
Front
Caster angle
27°
Axle
Connecting rod
Front
1.75
Tire pressure
(kgf/cm_)
Rear
2.0
Turning
Left
45°
angle
Right
45°
Front
Disk brake
Brake system
type
Rear
Disk brake
Suspension
Front
Telescope
type
Rear
Double swing
Shock absorber
Front
Telescope
type
Rear
Double swing
Frame type
Under bone
Tires
Engine
System
Fuel System
Carburetor
Electrical
Ignition System
Power Drive System
Transmis- sion Gear Reduction
Gear
Moving Device Damping
Device

1. GENERAL INFORMATION
1-3
PEOPL E 25 0
SERVICE PRECAUTIONS
nMake sure to install new gaskets, O-rings,
circlips, cotter pins, etc. when
reassembling.
nWhen tightening bolts or nuts, begin with
larger-diameter to smaller ones at several
times, and tighten to the specified torque
diagonally.
nUse genuine parts and lubricants.
nWhen servicing the motorcycle, be sure to
use special tools for removal and
installation.
nAfter disassembly, clean removed parts.
Lubricate sliding surfaces with engine oil
before reassembly.
nApply or add designated greases and
lubricants to the specified lubrication
points.
nAfter reassembly, check all parts for
proper tightening and operation.
nWhen two persons work together, pay
attention to the mutual working safety.
nDisconnect the battery negative (-) terminal
before operation.
nWhen using a spanner or other tools, make
sure not to damage the motorcycle surface.
nAfter operation, check all connecting
points, fasteners, and lines for proper
connection and installation.
nWhen connecting the battery, the positive
(+) terminal must be connected first.
nAfter connection, apply grease to the
battery terminals.
nTerminal caps shall be installed securely.

1. GENERAL INFORMATION
1-4
PEOPL E 25 0
nIf the fuse is burned out, find the cause and
repair it. Replace it with a new one
according to the specified capacity.
nAfter operation, terminal caps shall be
installed securely.
nWhen taking out the connector, the lock on
the connector shall be released before
operation.
nHold the connector body when connecting
or disconnecting it.
nDo not pull the connector wire.
nCheck if any connector terminal is bending,
protruding or loose.
nThe connector shall be inserted
completely.
nIf the double connector has a lock, lock
it at the correct position.
nCheck if there is any loose wire.
nBefore connecting a terminal, check for
damaged terminal cover or loose negative
terminal.
nCheck the double connector cover for
proper coverage and installation.
nInsert the terminal completely.
nCheck the terminal cover for proper
coverage.
nDo not make the terminal cover opening
face up.
nSecure 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.
Confirm
Capacity

1. GENERAL INFORMATION
1-5
PEOPL E 25 0
nAfter clamping, check each wire to make
sure it is secure.
nDo not squeeze wires against the weld or
its clamp.
nAfter clamping, check each harness to make
sure that it is not interfering with any
moving or sliding parts.
nWhen fixing the wire harnesses, do not
make it contact the parts which will
generate high heat.
nRoute wire harnesses to avoid sharp edges
or corners. Avoid the projected ends of
bolts and screws.
nRoute wire harnesses passing through the
side of bolts and screws. Avoid the
projected ends of bolts and screws.
nRoute harnesses so they are neither
pulled tight nor have excessive slack.
nProtect wires and harnesses with electrical
tape or tube if they contact a sharp edge or
corner.
nWhen rubber protecting cover is used to
protect the wire harnesses, it shall be
installed securely.
nDo not break the sheath of wire.
nIf a wire or harness is with a broken sheath,
repair by wrapping it with protective tape
or replace it.
nWhen installing other parts, do not press or
squeeze the wires.
Do not pull
too tightð
No Contact
Do not press
or squeeze the
wire

1. GENERAL INFORMATION
1-6
PEOPL E 25 0
nAfter routing, check that the wire harnesses
are not twisted or kinked.
nWire harnesses routed along with handlebar
should not be pulled tight, have excessive
slack or interfere with adjacent or
surrounding parts in all steering positions.
nWhen a testing device is used, make sure to
understand the operating methods
thoroughly and operate according to the
operating instructions.
nBe careful not to drop any parts.
nWhen rust is found on a terminal, remove
the rust with sand paper or equivalent
before connecting.
nSymbols:
The following symbols represent the
servicing methods and cautions included in
this service manual.
:Apply engine oil to the
specified points. (Use
designated engine oil for
lubrication.)
:Apply grease for lubrication.
:Transmission Gear Oil (90#)
:Use special tool.
: Caution
:Warning
Special
Engine Oil
Grease
Gear Oil
＊
Do you
understand the
instrument？
Remove
Rustð

1. GENERAL INFORMATION
1-7
PEOPL E 25 0
TORQUE VALUES
STANDARD TORQUE VALUES
Item
Torque (N-m)
Item
Torque (N-m)
5mm bolt, nut
6mm bolt, nut
8mm bolt, nut
10mm bolt, nut
12mm bolt, nut
4.5_6
8_12
18_25
30_40
50_60
5mm screw
6mm screw, SH bolt
6mm flange bolt, nut
8mm flange bolt, nut
10mm flange bolt, nut
3.5_5
7_11
10_14
24_30
35_45
Torque specifications listed below are for important fasteners.
ENGINE
Item
Q‘ty
Thread dia.(mm)
Torque (N-m)
Remarks
Cylinder head bolt A
Cylinder head bolt B
Oil filter screen cap
Cylinder head cap nut
Valve adjusting lock nut
Cam chain tensioner slipper bolt
Oil bolt
Clutch outer nut
Clutch drive plate nut
Flywheel nut
Oil pump bolt
Cylinder head cover bolt
Spark plug
Cam chain tensioner bolt
Water pump impeller
Drive face nut
Transmission case cover bolt
Gear oil check bolt
2
2
1
4
2
1
1
1
1
1
2
4
1
1
1
1
9
1
8
8
30
8
5
6
12
12
12
14
5
6
10
6
8
12
8
8
8.9
8.9
12.7
24.5
8.8
8.8
14.7
53.9
53.9
58.8
3.9
11.8
17.2
11.8
11.8
93
20
10
Double end bolt
Double end bolt
Apply oil to
threads

1. GENERAL INFORMATION
1-8
PEOPL E 25 0
FRAME
Item
Q‘ty
Thread dia.(mm)
Torque (N-m)
Remarks
Steering stem lock nut
Front axle
Rear axle nut
Rear shock absorber upper bolt
Rear shock absorber lower bolt
Front shock absorber lock bolt
Engine hanger bolt (frame side)
Engine hanger bolt (ENG. side)
Front caliper holder bolt
Rear caliper holder bolt
Master cylinder holder bolt
Exhaust muffler pipe nut
Exhaust muffler bolt
Rear fork bolt
1
1
1
2
2
4
2
1
2
2
4
2
3
2
10
14
16
10
10
8
12
10
8
8
6
8
8
8
40_50
29_35
110_130
35_45
35_45
29_35
45_55
45_55
29_35
29_35
10_14
18_22
32_38
29_35
SPECIAL TOOLS
Tool Name
Tool No.
Remarks
Ref. Page
Clutch spring compressor
E034
Clutch disassembly
Bearing puller 10,12,15,18mm
E037
Bearing removal
Valve spring compressor
E040
Valve removal
Oil seal & bearing installer
E014
Oil seal & bearing install
Tappet adjuster
E036
Tappet adjustment
Flywheel puller
E003
A.C. generator flywheel removal
Universal holder
E017
Holding clutch for removal
Flywheel holder
E021
A.C. generator flywheel holding
Lock nut socket wrench
F002
Steering stem removal or install
Float level gauge
Carburetor fuel level check

1. GENERAL INFORMATION
1-9
PEOPL E 25 0
LUBRICATION POINTS
ENGINE
Lubrication Points
Lubricant
Valve guide/valve stem movable part
Camshaft protruding surface
Valve rocker arm friction surface
Camshaft drive chain
Cylinder lock bolt and nut
Piston surroundings and piston ring grooves
Piston pin surroundings
Cylinder inside wall
Connecting rod/piston pin hole
Connecting rod big end
Crankshaft
Cranksahft one-way clutch movable part
Oil pump drive chain
Starter reduction gear engaging part
Countershaft gear engaging part
Final gear engaging part
Bearing movable part
O-ring face
Oil seal lip
•Genuine KYM CO Engine Oil (SAE15W-40)
•API SE, SF or SG Egnine Oil
Starter idle gear
Friction springmovable part/shaft movable part
Shaft movable grooved part
Starter spindle movable part
High-temperature resistant grease
Starter one-way clutch threads
Thread locking agent
A.C. generator connector
Transmission case breather tubee
Adhesive

1. GENERAL INFORMATION
1-10
PEOPL E 25 0
FRAME
The following is the lubrication points for the frame.
Use general purpose grease for parts not listed.
Apply clean engine oil or grease to cables and movable parts not specified. This will avoid
abnormal noise and rise the durability of the motorcycle.
Seat Lock
Grease
Engine Oil
Grease
Front Brake Lever Pivot
Speedometer Gear/
Front Wheel Bearing
Grease
Rear Fork Bearing
Grease
Speedometer Cable
Throttle Cable

1. GENERAL INFORMATION
1-11
PEOPL E 25 0
CABLE & HARNESS ROUTING
Throttle Cable
Front Brake Fluid Tube
Speedometer Cable
Radiator Air
Ventilated Tube
(to Radiator)
Rear Brake Fluid Tube
Winker/Horn/DIM Wire
Fuel Tank Cap
Open Cable
Rear Brake Master Cylinder
Front Brake Master Cylinder
Horn
Radiator

1. GENERAL INFORMATION
1-12
PEOPL E 25 0
Front Brake Fluid Tube
Fuel Tank
Inlet Hose
Water Inlet Hose
Fuel Tank
Breather Tube
Radiator Cap
Winker/Horn/DIM Wire
Start/Light/ENG Stop/Passing Wire
Water Outlet Hose
Rear Brake Fluid Tube
Radiator Air
Ventilated Tube
Fuel Pump
Vacuum Tube
Fuel Hose (between the Fuel Tank and Fuel Filler)
Radiator Air
Ventilated Tube (to
Radiator Water Duct)
Radiator
Front Brake Caliper
Thermostatic Switch
Water Duct Hose
Fuel Pump
Fuel Pump
Outlet Tube
Fuel Tank Cap

1. GENERAL INFORMATION
1-13
PEOPL E 25 0
Throttle Cable
Speedometer Cable
Radiator Air Ventilated
Tube (to Raciator)
Rear Brake Fluid
Tube
Fuel Tank Inlet
Tube
Water Inlet Hose
Fuel Tank
Breather Tube
Wire Harness
Winker/Horn/DIM Wire
Start/Light/ENG Stop/Passing Wire
Front Brake Fluid Tube
Fuel Tank
Cap Open
Cable
Radiator Air
Ventilated Tube
Fan Motor Wire
Ignition Switch
Fuel Tank Cap

1. GENERAL INFORMATION
1-14
PEOPL E 25 0
Starter Relay
Battery (+) Cable
Ignition Coil
Thermosensor Wire
Thermostat
Air Inlet Hose (V-
belt Chamber)
A.C.G/Starter
Relay Wire
CDI Unit
Fuse Box
Fuel Tank Inlet
Tube
Secondary Air Vacuum Tube
Starter Motor wire
Wire Harness
Seat Open
Cable
Battery (-) Cable
Heater Wire
Wire Harness
Fuel Pump
Vacuum Tube
Battery

1. GENERAL INFORMATION
1-15
PEOPL E 25 0
Ignition Coil
Carburetor
Secondary Air
Inlet Tube
Fuel
Pump
Wire Harness
Fuel Unit
Starter Relay
Oil Vapor
Recovery Tube
Heater Control Unit
Side Stand Switch
Spark Cap

1. GENERAL INFORMATION
1-16
PEOPL E 25 0
Secondary Air Cleaner Fresh Air Outlet Hose
Ignition Coil
Regulator/
Rectifier
Fuse Box
Fuel Pump
Fuel Unit
Carburetor
Battery
Secondary Air Cleaner
Secondary Air
Cleaner Fresh
Air Inlet Hose
Starter Motor
Wire
Fuel Tube (Between Fuel Pump and Fuel Filler)

1. GENERAL INFORMATION
1-17
PEOPL E 25 0
Battery
Battery (-) Cable
CDI Unit
Ignition Coil
Throttle Cable
Wire Harness
Auto Bystarter
T.P.S
Spark Plug Cap
Thermosensor
Thermostat
Rear Brake Caliper
Carburetor
Rear Brake
Fluid Tube
Starter Relay
Fuse Box
Battery (+) Cable
Seat Open Cable
Radiator Air
Ventilated Tube