Royal Enfield HIMALAYAN EURO IV 2017 User manual

EURO IV - HIMALAYAN VEHICLE SERVICE MANUAL
HIMALAYAN
HI

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
1
PREFACE
“
“
FIRST TIME RIGHT” is a very important element for enhancing Customer Satisfaction.
Royal Enfield is committed to upgrade the skills and knowledge of technicians so that they follow scientific repair
techniques to ensure “FIRST TIME RIGHT” practices and carry out repairs accurately so that customers will enjoy
trouble free performance at all times.
This manual will help in complete understanding of systematic procedures for dismantling, inspection, diagnosis and
reassembly for the new Royal Enfield
Himalayan
motorcycle, in a simple and scientific manner.
While this manual isupdated withlatestInformation and Specifications at the time of goingtoprint, due to continuous
improvementsbeing done to improve performance,some of the data,illustrationsetc., inthismanual maybe different
from some of the parts fitted in the motorcycle.
Please do feel free to write to us at
[e-mail]
, if you have any queries, clarification, suggestions or
feedback.
With warm regards
SERVICE HEAD QUARTERS
Royal Enfield, A Unit of Eicher Motors Limited,
Thiruvottiyur High Road, Thiruvottiyur, Chennai - 600 019.
E-mail: [e-mail]
Website: www.royalenfield.com
Part No: 1017122/A / Oct. ’17
01

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
2
HIMALAYAN – VEHICLE VIEWS
VEHICLE VIEW LH
02

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
3
VEHICLE VIEW RH
03

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
4
VEHICLE VIEW TOP
04

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
5
TABLE OF CONTENTS
SL.NO. DESCRIPTION PG.NO. SL.NO. DESCRIPTION PG.NO.
1. Technical Specifications ........................................ 6
2. Periodical Maintenance ......................................... 9
3. Special Tools Usage List ......................................... 11
4. Engine Dismantling from Frame & Reassembly . 12
5. Rider & Pillion Seat ................................................. 45
6. Control Cables ........................................................ 48
7. Air Filter.................................................................... 53
8. Pulse Air Valve ......................................................... 59
9. Fuel Tank .................................................................. 63
10. Exhaust Pipe & Silencer ......................................... 67
11. Front Suspension
11.1 Front Mudguard ............................................ 81
11.2 Front Wheel ................................................... 82
11.3 Front Fork ....................................................... 83
11.4 Handle Bar ...................................................... 86
11.5 Steering Stem ................................................. 87
12. Rear Suspension
12.1 Rear Wheel ..................................................... 109
12.2 Rear Sprocket / Drive Chain Adjustment .... 114
12.3 Rear Mudguard .............................................. 116
12.4 Mono Shockabsorber ................................... 117
12.5 Drag & Drop Links .......................................... 118
12.6 Swing Arm ...................................................... 119
12. ABS ......................................................................... 128
13. Hydraulic Disc Brakes - Front & Rear .................... 139
14. EVAP ......................................................................... 175
15. Engine Management System (EMS) ..................... 180
16. Electrical Components ........................................... 220
17. Electricals ................................................................. 229
18. NACS II Diagnosis .................................................... 251
19. Wiring Harness ........................................................ 270
20. Trouble Shooting
20.1 Vehicle Trouble Shooting ............................. 277
20.2 EMS Trouble Shooting .................................. 289
21. Notes ........................................................................ 291
05

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
6
SECTION 01 - TECHNICAL SPECIFICATION
A
A. ENGINE
Engine Type SingleCylinder,4Stroke,SOHC,Aircooled,FuelInjection
Bore 78mm
Stroke 86mm
Displacement 411 cc
Compression ratio 9.5:1
Max Power 24.5 bhp (18.02 KW) @ 6500 rpm
Max Torque 32 Nm @ 4250+250 rpm
Idle rpm 1250+50 rpm
Starting System Electric Start
Air filter element Paper element
Lubrication Forced Lubrication, Wet sump
Engine oil capacity 2.3 L (Initial fill only), 2.0 L (Subsequent Refills)
Engine oil grade SAE 15W 50 API SL Grade JASO MA 2
Cooling Air cooled with Oil cooler
B. IGNITION SYSTEM
Ignition system Electronic ECU / Variable
Spark plug Bosch - UR5CC
Spark plug gap 0.7 to 0.8 mm
C. TRANSMISSION
Clutch Wet Multi Plate
Primary drive Gear
Primary ratio 2.312:1
Gear box 5 Speed, Constant Mesh
Gear Ratios
1st Gear 1
st
2.916:1
2nd Gear 2
nd
1.833:1
3rd Gear 3
rd
1.428:1
4th Gear 4
th
1.173:1
5th Gear 5
th
1:000:1
VEHICLE & VEHICLE SYSTEMS
06

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
7
VEHICLE & VEHICLE SYSTEMS
Secondary Drive 5/8” Chain & Sprocket
Secondary Ratio 2.533:1
Drive Chain links 110 links
D
D. CHASSIS
Frame Half duplex split cradle
Suspension Front Telescopic, Hydraulic Damping,
Front wheel travel: 200 mm
Rear Swing arm with Linkage type Hydraulic damping
Mono shock, Rear wheel travel: 180 mm
Brakes Brake system Dual channel ABS
Front Disc 300mm Dia disc.
Rear Disc 240mm Dia disc.
Tyre size Front 90 / 90 - 21
Rear 120 / 90 - 17
Tyre Pressures
Solo Front 25 PSI / 1.75 Kg/cm
2
Rear 32 PSI / 2.25 Kg/cm
2
With Pillion Front 27 PSI / 1.89 Kg/cm
2
Rear 34PSI / 2.39 Kg/cm
2
Steering lock In built
Fuel tank capacity* 15 + 0.5 litres approx *
Low fuel warning Fuel Gauge (Red zone) 5.5+0.5 lts.
Dead stock (unusable fuel) 0.5 litre approx.
E. ELECTRICALS
Flywheel magneto 221W @ 1500 rpm
Generation Alternator, III Phase
System 12V - DC
Battery 12V - 8 AH MF
Head lamp 12V, H4-60/55W - BULB
Tail lamp / Brake lamp 12V- 4/1W LED
Licence Plate illuminator 12V- LED
* The above values
are approximate
and the actual
capacity may
vary with each
fuel tank .
07

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
8
Front position lamp 12V - LED
Speedometer lamp 12V - LED
Hi beam indicator 12V - LED
Neutral lamp telltale 12V - LED
Turn signal telltale 12V - LED
Turn signal 12V, 10W * 4 Nos.
Horn 12V, 2.5 Amp.
Starter Motor 12V, 0.7 KW
Instrument Cluster Digital cluster with main
and compass LCD
Side Stand indicator LCD Indication
F
F. DIMENSIONS
Length 2190mm
Width 840 mm
Height 1360 mm
Wheel base 1465 mm
Ground clearance. 220mm
Saddle Height 800 mm
G. WEIGHTS
Kerb weight (90% fuel&oil) 191 kgs.
Max. Pay load 174 Kgs.
WARNING
Usingbulbs/electricalgadgets
other than specified rating
may lead to overloading/
eratic behaviour / premature
failure of electrical system.
Modifications or fitments
which are not approved by
Royal Enfield, will seriously
affect the performance of the
vehicle and will render the
warranty void.
Values / Dimensions
mentioned above are
for reference only.
In view of continuous
improvements being
done on our
motorcycles, the
specifications are
subject to change
without prior notice.
08
VEHICLE & VEHICLE SYSTEMS

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
9
SECTION 02 - PERIODICAL MAINTENANCE
The Periodical maintenance schedule detailed below is based upon average riding conditions and indicates the
Intervalsatwhichregularinspections,adjustments,replacementsandlubricationsmustbecarriedoutto helpmaintain
your Himalayan motorcycle meticulously
If in case the motorcycle is used frequently in very dusty environment / severe climatic conditions / Poor Roads /
stagnant water etc., the maintenance will need to be done earlier as may be required.
Contact a nearest Royal Enfield Authorised Dealer / Service Center to carry out the periodical maintenance and for
any expert advice.
S
S.
No. DESCRIPTION
whicheveris earlier
PAID SERVICEFREE SERVICE
whicheveris earlier
NOTE:
For maintenance after 50,000 Kms. , please repeat same frequency specified above, in consultation with a Royal
Enfield Authorised Dealer / Service Center.
A : Ad j us t C : C l ea n I : I n s pe c t L : L u br i c at e R : R e p la c e
* Refer Service Manual. # Check every time after vehicle is used for off road riding
Kms (x 1000) 0.5 5 10 15 20 25 30 35 40 45 50
Months 1.5 6 12 18 24 30 36 42 48 54 60
1 EngineOil(Levelcheck/ Replace) RIRI R I RIRI R
Check level at every 1000 Kms or earlier as required
2 Oil Filter Element R R R R R R
3 Engine oil strainer on crankcase LH C C C C C C
4 Inlet/ ExhaustTappet setting I & A I & A I & A I & A I & A I & A I & A I & A I & A I & A I & A
5 Rubber hose, Inlet manifold * I I R I R I R I R I R
6 Oil cooler inlet & outlet pipes * I I I R I I R I I R I
7 Sparkplug C & A C & AC & A R C & A C & A R C & A C & A R C & A
8HTleadsforcrack IIIIIIRIII I
9 FuelHose I I I R I I R I I R I
10 Fuel Hose &Clip/ Injector ‘O’ring/ Seal Ring I I I R I I R I I R I
11 Fuel Pump Checkfor screwtightness in all services
CCRC R C RCRC R
12 Airfilterelement Clean/ Replace more frequently if motorcycle always used
industy / off Road conditions.
13 AcceleratorCable I I R I R I R I R I R
14 Rubber Hose, Air fitler to Throttle body I I R I R I R I R I R
15PAVpipes&Hoseclip IIII IRIIII R
16 Throttle body- Cleaning spray* Carbocleaner/ carb click/orFuellinecleanersprayevery
6000 Km or 6 monthswhicheveris earlier
17 Clutch Cable I I R I R I R I R I R
09

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
10
S
S.
No. DESCRIPTION
whicheveris earlier
PAID SERVICEFREE SERVICE
whicheveris earlier
Kms (x 1000) 0.5 5 10 15 20 25 30 35 40 45 50
Months 1.5 6 12 18 24 30 36 42 48 54 60
18 Clutch free play Adjust every1000 Kmsor earlieras required
19 Clutch no slippage I I I I I I I I I I I
20 Clutch Plates R R R
21 Cam Chain / Chain Pads / Auto chain Tensioner I I I I I I I I I I I& R
22 Inlet / Exhaust valveseating (compressiontest) * I I
23 Steeringheadbearings # I & A I & A L & A I & A L & A I & R I & A L & A I & A L & A I & R
24 FrontFork oil I I I R I I R I I R I
25 Fuel Pipe I I R I R I R I R I R
26Batteryterminals(applypetroleumjelly) CCCCCCCCCC C
27 Earthwireeyelet Tightness I I I I I
28 HydraulicBrakeFluid- Front&Rear# I I R I R I R I R I R
29 Hydraulicbrakehose& Washers-Front&Rear# I I I I R I I I R I I
30 BrakePads-Front&Rear# I I R I R I R I R I R
31 Tyrewear pattern (Front & Rear)#(1) I I I I I R I I I I R
32 Spokes tightness / Wheel rim run outfront & rear # I I I I I I I I I I I
33 Front& Rearwheelbearingsforplay # I I I I I I & R I I I I I& R
34 Swing arm Pivot bearings # I & L I& L I & L I & L I & L I & L I & L I & L I & L I & L I& R
35 Rear Suspension Linkages # I I & L I& L I& R I & L I & L I & R I& L I& L I& R I & L
36 Rear DriveChain # Clean, Lubricate & Adjust every1000 Kms orearlier as required
37 Drive chain& Sprocketsset# I I R I R I R I R I R
38 Rearwheelcush driverubbers # I I R I R I R I R I R
39 All Mounting Fasteners invehicle fortightness # I I I I I I I I I I I
40 Hand levers, side stand, Rider & Pillion foot rest Pivots Lubricateevery1000 Kms or earlier as required
41 Evaporative Emission Equipment rubber hoses * I I I R I I R I I R I
NOTE:
For maintenance after 50,000 Kms. , please repeat same frequency specified above, in consultation with a Royal
Enfield Authorised Dealer / Service Center.
A : A d j us t C : C l ea n I : I n s pe c t L : L u br i c at e R : R e p la c e
* Refer Service Manual. # Check every time after vehicle is used for off road riding

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
11
SECTION 03 - SPECIAL TOOLS USAGE LIST
ST-26461-2 Front Fork Assembling & To hold pipe seat inside fork main
Dismantling Tool tube for loosening / tightening of
Allen bolt on bottom tube.
ST-26485-3 Front Fork Oil Seal Driver To drive slide bushand fork oil seals into
bottom tube
ST-25244-4 Special spanner adjuster To adjust rear shock absorber spring
pre tension
PART NO. DESCRIPTION PHOTOS APPLICATION

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
12
SECTION 04 - ENGINE DISMANTLING FROM FRAME &
REASSEMBLY
EXPLODEDVIEWS
FRAME LH
S.NO. DESCRIPTION QTY. S.NO. DESCRIPTION QTY.
A1 GearShiftLeverKit 1
1 MainFrame-Black 1
2 Dummy cap- Frame 1
3 Utility Box 1
4 Seat Latch 1
5 Counter Sunk Screw M6 X 1 X 20 2
6 Flanged Hex Bolt M6 X 1 X 10 5
7 Hex Socket Head Screw M8X 1.25 X 25 4
8 Domed Cap Bolt 2
9 GrabRail Black 1
10 Philips pan head screwM6X6 2
11 Plate Seat Lock 1
12 Seat Lock 1
13 SaddleBagMtg -LH 1
14 FlangedHexBoltM6X 1X20 5
15 Plain Washer 4
16 Hex nut with nylon insert 4
17 Piece Mudguard 1
18 Grommet 1
19 STUD 2
20 CrossbarAssy 1
21 Dust Cap-Frame Top 1
22 Cap - Swing pivot 1
23 Toe Lever Comp 1
24 Pivot Pin - Gear Shifter 1
25 Sleeve,GearLever 1
26 Hex Nut 1
27 Link Rod 1
28 HexNut(LHThread) 1
29 Gear Shift Lever Comp-Short 1
30 HexSocHead Cap Screw– M5X 20 2
31 Switch-SideStand 1
32 Hex Socket Head Screw M8 X 1.25 X 35 1
33 Side Stand Assy 1
34 Hex Nylock Nut M8 X 9.5 1
35 Spring 1
36 BracketAssy-OilCooler 1
37 FlangedHexBoltM6 X1X 27 2
12
3
4
5
6
78
9
10 11 12 13
7
14
15
16
17
15
16
19
20
66
18
21
22
23
24
25
26
27
28
29
14
32
33
34
35
31
30
14
36 37

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
13
EXPLODEDVIEWS
FRAME RH
S.NO. DESCRIPTION QTY. S.NO. DESCRIPTION QTY.
1 MainFrame-Black 1
2 Connector Complete Black 1
3 FlangedHex.BoltM10X1.25X66 3
4 Flanged HexBolt, M10 X 1.25 X 75 1
5 Flange HexBoltM10 X 1.25X 165 1
6 Flange U Nut M10X 1.25 6
7CradleFrame 1
8 FlangeHexBoltM10X1.25X 183 3
9 Clutch Clamp 1
10 FlangedHexnut M10X1.25 1
11 Flanged Hex Bolt M8X 1.25X 16 1
12 Flanged Hex.BoltM8X 1.25X 45 1
13 Flanged Hex.NutM8X1.25 1
14 SteadyBracketBlack 1
15 Flanged Hex.NutM8X1.25 2
16 Brake Pedal Comp - RH 1
17 Pivot Pin-Brake Pedal 1
18 Spring-Pedal Return 1
19 Cap-Swing pivot 1
20 Hex Soc Head Cap Screw– M6 X 16 2
21 Dust Cap-Frame Top 1
22 Hex.Socket Button Head Screw M6 X 1 X 16 1
23 Plain Washer 1
24 Flanged HexBoltM6X 1X20 1
25 Bracket Assy-Airfilter 1
26 Saddle Bag Mtg- RH 1
27 Hex Socket Head Screw M8 X 1.25 X 25 2
28 Philips pan head screwM6X6 2
29 Flanged HexBoltM6X 1X10 4
30 Bracket Assy- Solenoid Valve 1
31 Bracket Assy- Roll Over Sensor 1
32 Dummy cap- Frame 1
27
26
25
24
11
21
20
19
18
6
17
16 3
3
8
8
6
7
6
5
6
6
9
10
11
6
12
13
14
15
4
3
2
1
32
31
28
29
30
29
28
23
22
8

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
14
COMPONENTS DISMANTLING SEQUENCE TO REMOVE ENGINE FROM FRAME
Skid Plate onFrame bottom
Engine oil (Drain when warm. Remove drain plug /
oil strainer coveron crankcase LH &Oil filter on Cover
RH)
Oil Cooler along with inlet & outlet pipes.
Fuel hose & Pulse Air valve connections
Batteryconnections
Fuel pump / Injector / TPS / MAP / O2 Sensor / EOT /
Magneto/Gearposition/ Sidestandswitch: couplers
dismantle
Startermotor connections
Spark plugsuppressor cap
Enginesteady bracket
Control Cables (Clutch / Accelerator)
Throttle body
Exhaust pipe & Silencer
Gear shift linkage
Starter motor
CoverLH
Gear position indicator sensor
Magneto rotorassembly including Starter clutch
Starter idler gears withbush & spindles
RearChain (RemovefromFDsprocket)
FD sprocket nut (loosen )
Cover RH
Oil pump gears / Oil pump
Crank shaft Nut (LEFT HAND THREADED)
Balancer shaft Bolt
Clutch center nut &Clutch assembly
Gear shift shaft assembly (Remove circlip & washer
on shift shaft from LH crankcase side first)
Cam shaft covers/ Cylinderhead cover
Automatic chain tensioner
Cam shaft gear & cam shaft Assembly
Cylinder Head Sub Assembly
Chain Tensioner Pads
Cylinder BarrelSub Assembly
Cradle frame top mountings (with connector)
mounting to frame
Cradle frame bottom mounting LH& RH on frame
Rear top engine mounting on frame (support engine
from bottom suitably)
Four mounting studs of Engine to cradle frame






















ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
15
S.
No. Fastener, Size, Tool Usage, Precautions, Photos
Aggregate to Dismantle/
Instructions
4.1 S
Skid plate
Loosen & remove 6
Flanged Hex screws (2 in
front & 4 in bottom.
Flanged Hex Screw: M6
Socket Spanner: 10mm
NOTE:
Ensure the engine oil is
drained from the engine.
Remove the spacers and
washers between the
skid plate and frame.
4.2
Oil Cooler
Remove Inlet & Outlet
Banjo union bolts from
LH & RH Crankcase
respectively & allow oil
to drain.
Ensure the 4 washers
are removed from the oil
pipes / banjo Union
Remove 2 Hex flange
bolts securing oil cooler
to the frame
Remove oil cooler along
with inlet & outlet pipes
.
(Ensure the Oil pipe No 2
on RH side between
engine & frame is taken
out carefully, while
dismantling the oil
cooler.)
Banjo Union Bolts: M14
Socket spanner: 19mm
Flanged Hex bolts: M6
Socket spanner: 8mm.
ENGINE DISMANTLING FROM FRAME

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
16
S.
No. Fastener, Size, Tool Usage, Precautions, Photos
Aggregate to Dismantle/
Instructions
4.3 W
Wind Shield
Assembly
Remove 4 Hex socket
head cap screws holding
the Wind shield
assembly to the top
frame.
Remove the 4 plastic
washers along with the
screws and remove wind
shield.
Hex Soc Hd. Cap Screw:
M5
Allen Key: 4mm
NOTE:
Hold the rubber mounted
nuts from behind while
loosening screws.
4.4
Trafficator front LH,
RH & cover cockpit
LH, RH
.
Disconnect Trafficator
wiring couplers below
headlamp.
Remove hex socket
head screw mounting
the trafficators to the
top frames on LH & RH
sides.
Gently pull out Cover
cockpitLH&RHfromthe
rubber grommets in the
top frame LH & RH.
NOTE:
Couplers are color coded as:
LH side: Green
RH side: Red
Hex socket hd. Screw: M5
Allen key: M4

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
17
S.
No. Fastener, Size, Tool Usage, Precautions, Photos
Aggregate to Dismantle/
Instructions
4.5 H
Headlamp
Assembly
Disconnect head lamp
wiring coupler below
head lamp.
Hex Socket Hd. screw:
M5
Allen Key: 6mm
Remove the dust caps
from the mounting
holes in top frame LH &
RH.
Remove 2 hex socket
head screws holding
headlamp assembly to
top frame LH & RH &
remove head lamp assy.
4.6
Top frame LH & RH
Remove 2 Flanged Hex
bolts holding the top
frame LH & RH to
Instrument cluster
bracket.
Remove the 2 dust caps
from the connector in
the frame.
Loosen 2 hex socket
head screw clamping
top frames LH & RH, to
connector tube.
Gently rotate & pull out
top frames LH & RH from
connector tube.
Flanged hex bolts: M8
Socket Spanner: 12mm
Hex Socket Hd. screws:
M6
Socket Spanner: 10mm
CAUTION
Take care not to damage
fuel tank while rotating &
removing the side support
brackets.

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
18
S.
No. Fastener, Size, Tool Usage, Precautions, Photos
Aggregate to Dismantle/
Instructions
4.7 P
Pillion & Rider Seat
Unlock pillion seat by
turning key clockwise &
lift pillion seat fromfront
end to release rear tab &
remove.
Lift rider seat from rear
end to release front tab
& remove.
4.8
Fuel Tank
Remove 2 Hex screws
from the rear end of fuel
tank.
Gently lift fuel tank at
the rear and low fuel
sensor.
Disconnect fuel pump
wiring coupler on right
sight of fuel tank.
Disconenct fuel hose
from fuel pump by
disconnecting the quick
fix adopter at fuel pump
end.
Disconnect rubber hose
from fuel tank to
cannister.
Slide fuel tank towards
rear to release front
clamp from frame
Remove tank along with
the overflow tube
carefully.
Flanged hex bolts: M6
Socket Spanner: 10mm

ROYAL ENFIELD HIMALAYAN EURO IV VEHICLE SERVICE MANUAL
19
S.
No. Fastener, Size, Tool Usage, Precautions, Photos
Aggregate to Dismantle/
Instructions
4.9 S
Steady Engine
Bracket
Hold U nutat the cylinder
head mounting area
with a double end
spanner and loosen Hex
bolt at the front of the
steady engine bracket.
Remove the bolt and
nut.
Support steady engine
bracket, Loosen &
remove the 2 Flanged
hex bolts at the rear end
of the bracket and
remove the bolts and
steady engine bracket.
Flanged hex bolt: M10
Socket Spanner: 12mm
Flanged hex nut: M10
Socket Spanner: 12mm
4.10
Throttle cable
Push rubber grommets
down and loosen hex
nuts completely.
Gently pull throttle cable
from bracket to release
the threaded position
from the bracket.
Remove inner cable
from the throttle body
rotor eyelet.
Double End Spanner:
13mm