We are pleased to release this workshop manual for the new generation of Royal Enfield
Motorcycles fitted with unit construction engine, electronically controlled “Engine Management
System” and fuel injection technology.
We have endeavoured to make this manual user friendly. However, we welcome your valuable
suggestions for improvements which you may write to us or email us at vvikram@royalenfield.com.
All Rights Reserved. No part of this Service technical manual shall be copied,
distributed or otherwise dealt, without the express permission in written from Eicher
Motors Limited, Unit Royal Enfield, who remains the sole owner of this manual .”
Part No.597451 / Qty. 500 / May ‘09
01-1
FOREWFOREW
FOREW
FOREWFOREW
ORDORD
ORD
ORDORD
PREPARATION FOR SERVICE
Good preparation is very important for carrying out correct service job. The motorcycle should be
cleaned well before starting a repair job. Cleaning will occasionally uncover sources of trouble.
Availability of tools, measuring instruments and parts should be ensured before commensing an
overhaul, since Interruption to locate tools or parts can cause distraction and needless delay. Use of
special tools will ensure a quality service.
USE OF GENUINE SPARE PARTS
Use only genuine Royal Enfield spares whenever replacing parts. Use of non genuine parts can
seriously affect motorcycle performance and may result in costly rework, vehicle down time and
above all customer dissatisfaction.
NOTE :
Proper service and repair is important for the safe and reliable operation of all mechanical products.
The service procedures recommended and detailed in this manual will help to carry out correct repairs.
SAFETY
Every care is taken to ensure that the information given in this manual is correct at the time of going to
print. However, Royal Enfield does not assume responsibility for any damage, loss or injury caused to
the vehicle or to the person carrying out repairs, due to errors or omissions in this manual.
IMPORTANT NOTICE
All images shown are only for reference to explain and may not be exactly the same on the motorcycle.
Technical specifications are subject to change without prior notice.
Because of changes that may occur in the manufacturing process, since this manual was printed, it
is possible some instructions or illustrations found within this manual may differ from those found on
the vehicle. However the technical information found within this manual is correct at the time, when it
was approved for printing.
Future modifications, improvements etc will be communicated to our Authorised Distributors / Importers
as and when changes are done to the motorcycle.
01-2
HOHO
W W
TT
HO
W
HOHO
W W
SERSER
SER
SERSER
Pictorial presentation of various activities, make
this manual easy to understand and user friendly.
This service manual is divided into 10 Sections
01 to 10. Page numbers for each section starts
with 01. Thus, page 05-10 indicates 10th page
of section 5.
O USE O USE
T
O USE
TT
O USE O USE
VICE MANUVICE MANU
VICE MANU
VICE MANUVICE MANU
YY
OUROUR
Y
OUR
YY
OUROUR
ALAL
AL
ALAL
Engine breather System
Clutch System
Inlet manifold & Throttle body
Blow up Charts.
SECTION FIVE 05SECTION FIVE 05
SECTION FIVE 05
SECTION FIVE 05SECTION FIVE 05
ENGINE DISMANTLINGENGINE DISMANTLING
The sections are subdivided into subjects and
presented in the following order.
SECTION ONE O1SECTION ONE O1
SECTION ONE O1
SECTION ONE O1SECTION ONE O1
INTRODUCTIONINTRODUCTION
INTRODUCTION
INTRODUCTIONINTRODUCTION
The manual and its arrangements
SECTION TWO 02SECTION TWO 02
SECTION TWO 02
SECTION TWO 02SECTION TWO 02
GENERALGENERAL
GENERAL
GENERALGENERAL
Salient features of the Unit construction engine
& engine management system
Four stroke cycle operation
Basic terminology of automobiles
Technical specifications
Identification of Chassis No., Engine No.,
List of special tools and its applications
Control cables and wiring harness routing.
SECTION THREE 03SECTION THREE 03
SECTION THREE 03
SECTION THREE 03SECTION THREE 03
SERSER
SER
SERSER
VICE DVICE D
VICE D
VICE DVICE D
AA
A
AA
TT
T
TT
AA
A
AA
Engine dismantling procedure
Vital parts - Description
Unidirectional fittings list
Engine assembling procedure
SECTION EIGHT 08SECTION EIGHT 08
SUSPENSION ANDSUSPENSION AND
SUSPENSION AND
SUSPENSION ANDSUSPENSION AND
STEERINGSTEERING
STEERING
STEERINGSTEERING
- Relay starter
- Starter motor
- IC Flasher
Front fork working principle
Front fork removal & reassembly
Steering stem removal & reassembly
Gas filled shock absorber
- Working principle
- Removal and assembly
- Adjustment of shock absorber
- Recharging of shock absorber
Swing Arm
- Removal
- Bush lubrication / replacement
- Reassembly
Centre Stand Removal & Reassembly
SECTION NINE 9SECTION NINE 9
SECTION NINE 9
SECTION NINE 9SECTION NINE 9
ELECTRICALSELECTRICALS
ELECTRICALS
ELECTRICALSELECTRICALS
Electrical symbols
Battery
- Precautions
- Charging
- RR Unit
- TPS Unit
Electrical parts Inspection
- Clutch switch
- Starter switch
- Switch modules LH & RH
Do’s and Dont’s
Wiring Diagrams
- Ignition circuit
- Starter and charging
- Complete Wiring diagram
Trouble shooting
SECTION TEN 10SECTION TEN 10
SECTION TEN 10
SECTION TEN 10SECTION TEN 10
TRTR
OUBLE SHOOOUBLE SHOO
TR
OUBLE SHOO
TRTR
OUBLE SHOOOUBLE SHOO
SAFETY DEFINITIONSSAFETY DEFINITIONS
SAFETY DEFINITIONS
SAFETY DEFINITIONSSAFETY DEFINITIONS
Important aspects to be noted are given as
follows in the manual.
TINGTING
TING
TINGTING
- Maintenance
Spark plug maintenance & Inspecton
Checking procedure of electrical
components:
- Starter coil
- Pulsar coil
- Ignition coil
- Suppressor Cap
- Battery
- Horn
NOTE
Provides important information that will have to
be adhered to while carrying out repairs.
CAUTION
Indicates activities that are important to be
noted. Non-adherance may result in breakage
and or functional failures of the assembly.
SPECIAL TOOLS
Contains details of the special tools and its
usage, These tools have been specially designed
for a specific purpose.
01-4
SECTIONSECTION
SECTION
SECTIONSECTION
TWO 02TWO 02
TWO 02
TWO 02TWO 02
GENERALGENERAL
GENERAL
GENERALGENERAL
SALIENT FEASALIENT FEA
SALIENT FEA
SALIENT FEASALIENT FEA
ENGINE & ENGINE MANENGINE & ENGINE MAN
ENGINE & ENGINE MAN
ENGINE & ENGINE MANENGINE & ENGINE MAN
TURES OF TURES OF
TURES OF
TURES OF TURES OF
THE UNIT CONSTRTHE UNIT CONSTR
THE UNIT CONSTR
THE UNIT CONSTRTHE UNIT CONSTR
AA
GEMENT SYGEMENT SY
A
GEMENT SY
AA
GEMENT SYGEMENT SY
STEMSTEM
STEM
STEMSTEM
UCTIONUCTION
UCTION
UCTIONUCTION
•HIGH TORQUE ENGINE
•ENHANCED POWER DELIVERY
•HYDRAULIC TAPPETS
•AUTO DECOMPRESSOR
•AUTO CHAIN TENSIONER FOR
PRIMARY CHAIN
•HIGH CAPACITY TRACHOIDAL OIL
PUMP FOR BETTER LUBRICATION
FOUR STRFOUR STR
FOUR STR
FOUR STRFOUR STR
SUCTIONCOMPRESSIONPOWEREXHAUST
STROKE
Inlet ValveOpenClosedClosedClosed
OKE CYOKE CY
OKE CY
OKE CYOKE CY
STROKESTROKESTROKE
•IMPROVED ACCELERATION & HIGH
SPEED CRUISING
•EXCELLENT COLD STARTING
ABILITY
•ACCURATELY CONTROLLED, AIR
FUEL MIXTURE & IGNITION TIMING
BY THE ENGINE CONTROL UNIT
•IMPROVED PERFORMANCE AND
FUEL EFFICIENCY THRO FUEL
INJECTION SYSTEM.
CLE OPERACLE OPERA
CLE OPERA
CLE OPERACLE OPERA
TIONTION
TION
TIONTION
Exhaust ValveClosedClosedClosedOpen
Piston MovementTDC to BDCBDC to TDCTDC to BDCBDC to TDC
Gas FlowAir PetrolAir PetrolAir petrol mixtureExhaust gas
mixture ismixture getsburns, gas
expands.flows out.
drawn intocompressed.Piston is
cylinderFew degrees beforepushed down.
BTDC, spark plug
produces spark.
02-1
BASIC BASIC
BASIC
BASIC BASIC
TERMINOLTERMINOL
TERMINOL
TERMINOLTERMINOL
OGY OF OGY OF
OGY OF
OGY OF OGY OF
ENGINE :
The Engine helps to convert Chemical energy
availbale in petrol into heat energy then to
mechanical energy for motion. It is the heart of
the vehicle in which power is generated for
moving the vehicle.
BORE :
Bore is the inside diameter of the cyclinder block
in which Piston moves up and down.
TDC :
TDC stands for Top Dead Center. It is the top
most position to which the piston can travel in
the cylinder barrel.
BDC :
AUTAUT
AUT
AUTAUT
Fuel
Air
OMOBILESOMOBILES
OMOBILES
OMOBILESOMOBILES
Power
BDC stands for Bottom Dead Center. It is the
bottom most position to which the piston can
travel in the cylinder barrel.
STROKE :
It is a distance travelled by piston from TDC to
BDC or Vice Versa.
CUBIC CAPACITY / DISPLACEMENT :
It is a volume generated by piston when it travels from TDC to BDC. It is measured as Cubic Centimeter
(CC). It can be mathematically arrived at with the radious of the piston and the stroke of the engine.
(πr²× l, when ‘r’ is the radius of the piston and ‘l’ is the length of the stroke). It is also known as Swept
Volume or Displacement volume.
CLEARANCE VOLUME :
It is the nominal volume of the space above the
piston in the combustion chamber when piston
is at the topmost position (TDC).
02-2
TOTAL VOLUME :
It is the sum of the swept voume (Displacement volume) and Clearance volume.
Total Volume = Swept volume + Clerance volume.
COMPRESSION RATIO :
It is a ratio between total volume in the engine to the clearance volume available at the end of
compression stroke.
Compression ratio =
Total volume of air fuel mixture
Clearance volume
VOLUMETRIC EFFICIENCY :
Volumetric efficiency is the ratio between the volume of air fuel mixture that actually enters the cylinder
and Swept volume.
Volumetric Efficiency
= Volume of air fuel mixture inhaled during suction stroke
Swept volume
HORSE POWER (HP OR PS) :
HP : Horse Power
PS : PFERDESTARKE is German unit of power. Horse Power is the ability of the engine to do a
certain amount of work in a given time.
One Horse power is the power required for lifting a weight of 75 Kg. through vertical distance of one
meter in one second.
Conversion :
1PS = 0.986 HP = 0.735 KW
1 HP = 1.014 PS = 0.744 KW
1KW = 1.360 PS = 1.340 HP
02-3
IHP :
IHP stands for Indicated Horse Power. Indicated
Horse Power is the power actually developed
inside the engine cylinder by combustion process.
It is utilised to drive the piston.
1HP (Horse
Power Available
after explosion)
FHP :
FHP (Frictional
Losses)
FHP stands for Frictionl Horse Power.
It is the amount of horse power used or lost to
overcome the friction between various engine
components.
BHP :
BHP stands for Brake Horse Power
BHP (Horse
Power Avaiable at
Crankshaft)
Brake Horse Power is the amount of Power actually available at the crankshaft or output shaft. It
is calculated by using dynamometer.
BHP = IHP - FHP
MECHANICAL EFFICIENCY :
Mechanical Efficiency is the ratio between Brake horsepower and Indicated horse power.
Brake horsepower = BHP
Indicated Horse power IHP
TORQUE :
Torque is a twisting or turning force or effort. It is the
product of a distance and force in circular motion.
In the picture shown the torque-applied is the product
of distance (distance between the center of the bolt
and point where force is acting) and the amount of
force applied.
With the same force, if the distance is increased,
the torque will also increase and if distance is
reduced, torque applied will also be reduced.
Ignition timing is the timing at which spark
commences so that the spark from the spark
plug can ignite the mixture in the combusion
chamber at the end of TDC during compression
stroke.
If spark occurs earlier than specified ignition
timing, it is called “Advance” timing.
If spark occurs after the specified ignition timing,
it is called “Retard” timing.
IDLING SPEED :
It is the speed of the crankshaft (i.e. RPM) of the
engine when the throttle is in closed pisition.
GEAR RATIO :
The relative rotation between “Driven Gear” and
“Driving Gear” is known as the “Gear Ratio”. It is
determined by number of teeth on the respective
gears.
TDC Position
Ignition Timing
Position
Ignition Timing in
Degrees
Gear Ratio =
No. of teeth of Driven Gear
No. of teeth of Driving Gear
In Fig. 1, the Gear ratio is 20 ÷ 10 = 2 : 1
In Fig. 2, the Gear ratio is 20 ÷ 20 = 1 : 1
Gear ratios multiply the engine torque to fulfil
various demands for pulling the vehicle like.
-More effort is required during initial
movement of the vehicle.
-More effort is required to climb an elevation.
-More effort is required while driving in
muddy or sandy surfaces.
FINAL DRIVE RATIO :
It is a relative rotation between the engine
sprocket and the sprocket on the rear wheel.
Both the sprockets are connected through drive
chain.
Final drive ratio further multiplies the torque
available at the output shaft.
2.In view of continuous improvements, specifications are likely to change without
notice
02-8
IDENTIFICAIDENTIFICA
IDENTIFICA
IDENTIFICAIDENTIFICA
TION OF CHASSIS NOTION OF CHASSIS NO
TION OF CHASSIS NO
TION OF CHASSIS NOTION OF CHASSIS NO
.,.,
ENGINE NO ENGINE NO
.,
ENGINE NO
.,.,
ENGINE NO ENGINE NO
,,
,
,,
CHASSIS NO.
ENGINENO.
02-9
LIST OF SPECIAL LIST OF SPECIAL
LIST OF SPECIAL
LIST OF SPECIAL LIST OF SPECIAL
ST 25128-2
Magneto Puller for TCI
TT
OOLS OOLS
T
OOLS
TT
OOLS OOLS
Application :Removal of magneto assembly
AND ITS AND ITS
AND ITS
AND ITS AND ITS
APPLICAAPPLICA
APPLICA
APPLICAAPPLICA
TIONTION
TION
TIONTION
ST 25151-4
Chain case outer puller (TCI)
ST-25594-4
Clutch spring assy.
Application :To remove Crank case LH cover
Application : To compress clutch springs while
removing & refitting Clutch plates.
02-10
LIST OF SPECIAL LIST OF SPECIAL
LIST OF SPECIAL
LIST OF SPECIAL LIST OF SPECIAL
ST-25591-4
Clutch centre nut
TT
OOLS OOLS
T
OOLS
TT
OOLS OOLS
Application : To hold Clutch Sprocket while removing / tightening
the Clutch & Sprag Sprocket Nut.
AND ITS AND ITS
AND ITS
AND ITS AND ITS
APPLICAAPPLICA
APPLICA
APPLICAAPPLICA
TIONTION
TION
TIONTION
Oil seal adopter
ST 25118-4
Cylinder head nut tightening tool
Application : Fitment of gear shaft oil seal on crank case
LH cover.
Application : To remove and tightening of cylinder
head nut.
02-11
LIST OF SPECIAL LIST OF SPECIAL
LIST OF SPECIAL
LIST OF SPECIAL LIST OF SPECIAL
ST 25123-1
Valve Spring compressor
TT
OOLS OOLS
T
OOLS
TT
OOLS OOLS
Application : To compress the valve spring for removal
AND ITS AND ITS
AND ITS
AND ITS AND ITS
and fitting of valve.
APPLICAAPPLICA
APPLICA
APPLICAAPPLICA
TIONTION
TION
TIONTION
ST 25153-4
Extractor for 5 Speed
Gear box Pivot Pin
ST 25
FD sprocket removal tool
Application : To remove Gear Rocker Shaft top pivot pin and Gear
Cam Plate pivot pin.
Application : To remove front drive sprocket
from Sleeve Gear.
02-12
LIST OF SPECIAL LIST OF SPECIAL
LIST OF SPECIAL
LIST OF SPECIAL LIST OF SPECIAL
ST
Front fork main tube spanner
TT
OOLS OOLS
T
OOLS
TT
OOLS OOLS
Application : Loosening and tightening of front fork main
AND ITS AND ITS
AND ITS
AND ITS AND ITS
tube with fork end
APPLICAAPPLICA
APPLICA
APPLICAAPPLICA
TIONTION
TION
TIONTION
ST 25112-4
Expander for front fork oil seal
ST 25114-4
Extractor for Fork oil seal
Application : Expander for oil seal while inserting main
tube into bottom tube of front fork
Application : Removal of oil seal in front fork bottom tube
02-13
LIST OF SPECIAL LIST OF SPECIAL
LIST OF SPECIAL
LIST OF SPECIAL LIST OF SPECIAL
ST 25113-4
Mandrel for oil seal
TT
OOLS OOLS
T
OOLS
TT
OOLS OOLS
Application : Fitment of oil seal in front fork bottom tube
AND ITS AND ITS
AND ITS
AND ITS AND ITS
APPLICAAPPLICA
APPLICA
APPLICAAPPLICA
TIONTION
TION
TIONTION
ST 25110-3
Gauge for tightening chain stay
ST 25244-4
Adjuster Special Spanner
Application : Alignment of Swing Arm while tightening
Application :To adjust gas filled shock absorber
02-14
CONTROL CABLES AND WIRING HARNESS ROUTINGCONTROL CABLES AND WIRING HARNESS ROUTING
CONTROL CABLES AND WIRING HARNESS ROUTING
CONTROL CABLES AND WIRING HARNESS ROUTINGCONTROL CABLES AND WIRING HARNESS ROUTING
ALL CONTROL CABLES & WIRING HARNESS ROUTING
UNDER TANK AND SEAT TOP VIEW
UNDER TANK LH VIEW
UNDER TANK RH VIEW
02-15
GENERAL GENERAL
GENERAL
GENERAL GENERAL
VEHICLE INFORMAVEHICLE INFORMA
VEHICLE INFORMA
VEHICLE INFORMAVEHICLE INFORMA
TIONTION
TION
TIONTION
HARNESS ROUTING STEERING RH
PLUG WIRE ROUTING
MAGNETO WIRES ROUTING
STARTER RELAY CABLE
ROUTING
02-16
GENERAL GENERAL
GENERAL
GENERAL GENERAL
VEHICLE INFORMAVEHICLE INFORMA
VEHICLE INFORMA
VEHICLE INFORMAVEHICLE INFORMA
TIONTION
TION
TIONTION
FUSE CARRIERS
ARRANGEMENT (E5 & G5)
FUSE CARRIERS
ARRANGEMENT (C5)
HORN WIRE ROUTING
HANDLE BAR WIRES ROUTING
02-17
GENERAL GENERAL
GENERAL
GENERAL GENERAL
VEHICLE INFORMAVEHICLE INFORMA
VEHICLE INFORMA
VEHICLE INFORMAVEHICLE INFORMA
TIONTION
TION
TIONTION
TAIL LAMP & TRAFFICATOR
WIRES ROUTING
ECU MOUNTING BULLET
ELECTRA EFI (E5 & G5)
THROTTLE BODY MOUNTING
WITH CABLES
ECU MOUNTING BULLET
CLASSIC EFI (C5)
02-18
SECTIONSECTION
SECTION
SECTIONSECTION
THREE 03THREE 03
THREE 03
THREE 03THREE 03
SERVICE DSERVICE D
SERVICE D
SERVICE DSERVICE D
AA
A
AA
TT
T
TT
AA
A
AA
SERSER
SER
SERSER
VICE LIMITS OF COMPONENTS VICE LIMITS OF COMPONENTS
VICE LIMITS OF COMPONENTS (All units in mm unless specified)
VICE LIMITS OF COMPONENTS VICE LIMITS OF COMPONENTS
WEAR LIMITS
Wear limits are given as new min, new max and service limits.
New components must be within the limits specified. Components within service limits may be reused
after careful inspection. Use of parts beyond service limit can reduce the operating life of the component
and may affect the motorcycle performance seriously.
Cylinder bore
New Min.
New Max.
Service Limit
Cylinder bore :
Point of measurement
A
B
C
84.045
84.075
84.190
Piston
Ring to groove clearance : Comp. Top rings
New Min.
New Max.
Service Limit
Ring to groove clearance comp rings - Middle
0.03
0.07
0.11
New Min.
New Max.
Service Limit
New Min.
New Max.
Service Limit
83.940
83.970
83.890
Piston to bore clearance
0.095
0.115
0.30
New Min.
New Max.
Service Limit
Ring to groove clearance : oil ring
New Min.
New Max.
Service Limit
0.03
0.07
0.15
0.06
0.15
0.21
03-1
Piston ring end gap : compression
From top1st2nd
New Min.0.200.35
New Max.0.350.50
Service Limit0.700.85
New Min.
New Max.
Service Limit
Piston Pin diameter
19.992
19.997
19.982
New Min.
New Max.
Service Limit
Piston ring end gap - Oil Ring
0.20
0.70
0.90
Small end bore inner diameter
New Min.
New Max.
Service Limit
Big end axial play
0.20
0.55
0.65
Crank shaft : Run out
New Min.
New Max.
Service Limit
20.007
20.016
20.046
New Min.
New Max.
Service Limit
0.00
0.04
0.08
03-2
Connecting rod bend
Valve stem OD (Inlet)
New Min.
New Max.
Service Limit
New Min.
New Max.
Service Limit
0.00
0.05
0.08
Cylinder Head warpage
0.00
0.05
0.07
New Min.
New Max.
Service Limit
New Min.
New Max.
Service Limit
6.965
6.980
6.955
Valve to guide (inlet) clearance
0.02
0.05
0.08
New Min.
New Max.
Service Limit
Valve guide bore
7.00
7.015
7.25
New Min.
New Max.
Service Limit
Valve stem OD (Exhaust)
6.945
6.960
6.935
03-3
Valve to guide (Exhaust) Clearance
Hydraulic Tappet OD
New Min.
New Max.
Service Limit
New Min.
New Max.
Service Limit
0.04
0.07
1.00
Valve Spring : length
42.80
44.80
41.50
New Min.
New Max.
Service Limit
New Min.
New Max.
Service Limit
21.387
21.405
21.380
Hydraulic Tappet guide bore
21.417
21.438
21.450
New Min.
New Max.
Service Limit
Push rod run out
0.00
0.02
0.05
Hydraulic tappet to guide clearance
New Min.
New Max.
Service Limit
0.012
0.051
0.060
03-4
Loading...
+ 190 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.