Ducati ST4S ABS User manual

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Owner’s manual
DUCATIST4s ABS

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Hearty welcome among Ducati fans! Please accept our
best compliments for choosing a Ducati motorcycle. We
think you will ride your Ducati motorcycle for long
journeys as well as short daily trips. Ducati Motor Holding
S.p.A. wishes you smooth and enjoyable riding.
We are steadily doing our best to improve our “Technical
Assistance” service. For this reason, we recommend you
to strictly follow the indications given in this manual,
especially for motorcycle running-in. In this way, your
Ducati motorbike will surely give you unforgettable
emotions. For any servicing or suggestions you might
need, please contact our authorized service centers.
Enjoy your ride!
Note
Ducati Motor Holding S.p.A. declines any liability
whatsoever for any mistakes incurred in drawing up this
manual. The information contained herein is valid at the
time of going to print. Ducati Motor Holding S.p.A.
reserves the right to make any changes required by the
future development of the above-mentioned products.
For your safety, as well as to preserve the warranty,
reliability and worth of your motorcycle, use original
Ducati spare parts only.
Warning
This manual forms an integral part of the
motorcycle and - if the motorcycle is resold - must
always be handed over to the new owner.

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TABLE OF CONTENTS
General 6
Warranty 6
Symbols 6
Useful information for safe riding 7
Carrying the maximum load allowed 8
Identification data 10
Controls 11
Position of motorcycle controls 11
Instrument panel 12
Digital display 14
The immobilizer system 15
Keys 15
Code card 16
Operation 17
Duplicate keys 17
Key-operated ignition switch and steering lock 18
Left switch 19
Clutch lever 20
Cold start lever 21
Right switch 22
Throttle twistgrip 23
Front brake lever 23
Rear brake pedal 24
Gear change pedal 24
Setting the gear change and rear brake pedals 25
Main components and devices 27
Location 27
Tank filler plug 28
Seat catch and helmet hooks 29
Side stand 30
Lifting handgrip 31
Power outlet 31
Centre stand 32
Rear view mirrors 33
Front fork adjusters 34
Shock absorber adjusters 36
Directions for use 38
Running-in recommendations 38
Pre-ride checks 40
Starting the engine 41
Moving off 44
Braking 44
ABS system 44
Stopping the motorcycle 46
Parking 46
Refueling 47
Tool kit and accessories 48
Main maintenance operations 49
Removing the fairing 49
Side panniers 52

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Lifting the fuel tank 53
Cleaning and changing air filters 54
Checking the coolant level 55
Checking brake and clutch fluid level 56
Checking brake pads for wear 57
Lubricating cables and joints 58
Throttle cable adjustment 59
Charging the battery 60
Chain tensioning 61
Chain lubrication 62
Replacing bulbs 62
Beam setting 68
Tyres 70
Checking engine oil level 72
Cleaning and replacing the spark plugs 73
Cleaning the motorcycle 74
Storing the bike away 75
Important notes 75
Technical data 76
Overall dimensions 76
Weights 76
Top-ups 77
Engine 78
Timing system 78
Performance data 79
Spark plugs 79
Frame 79
Wheels 79
Tyres 79
Brakes 80
Transmission 81
Suspensions 82
Exhaust system 82
Available colours 82
Electric system 82
For United States of America version Only 87
Routine maintenance record 96

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GENERAL
Warranty
In your own interest, and in order to guarantee product
reliability, you are strongly advised to refer to our
authorized Dealers and workshops for any servicing
requiring particular technical expertise. Our highly skilled
staff have access to the implements required to perform
any servicing job at best, and use Ducati original spare
parts only as the best guarantee for full
interchangeability, smooth running and long life.
All Ducati motorcycles come with a “Warranty Card”.
However, warranty does not apply to the motorcycles
used in competitions or competitive trials. No motorcycle
part may be tampered with, altered, or replaced with
parts other than original Ducati spare parts during the
warranty period, or the warranty right will be
automatically invalidated.
Symbols
Ducati Motor Holding S.p.A. advises you to read this
booklet carefully so as to become familiar with your
motorcycle. In case of any doubts, please call a Ducati
dealer or authorized workshop. The information
contained herein will prove useful on your trips - and
Ducati Motor Holding S.p.A. wishes you smooth,
enjoyable riding - and will help you keep the performance
of your motorcycle unchanged for a long time.
This manual contains some special remarks:
Warning
Failure to comply with these instructions may put
you at risk and lead to severe injury or death.
Important
Possibility of damaging the motorcycle and/or its
components.
Note
Additional information concerning the job being
carried out.
The terms right and left are referred to the motorcycle
viewed from the riding position.

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Useful information for safe riding
Warning
Read this section before riding your motorcycle.
Accidents are frequently due to inexperience. Always
make sure you have your licence with you when riding;
you need a valid licence to be entitled to ride your
motorcycle.
Do not lend your motorcycle to inexperienced riders or
who do not hold a valid licence.
Both rider and pillion passenger must always wear a
safety helmet.
Wear proper clothing, with no loose items or accessories
that may become tangled in the controls or limit your
zone of vision.
Never start or run the engine indoors. Exhaust gases are
poisonous and may lead to loss of consciousness or even
death within a short time.
Both rider and pillion passenger should keep their feet on
the footpegs when the motorcycle is in motion.
Always hold the handlebars firmly with both hands so
you will be ready for sudden changes of direction or in
the road surface. The pillion passenger should always
hold on to the suitable rear handgrip with both hands.
Ride within the law and observe national and local rules.
Always respect speed limits where these are posted.
However, always adjust your speed to the visibility, road
and traffic conditions you are riding in.
Always signal your intention to turn or pull to the next
lane in good time using the suitable turn indicators.
Be sure you are clearly visible and do not ride within the
blind spot of vehicles ahead.
Be very careful when tackling road junctions, or when
riding in the areas near exits from private grounds, car
parks or on slip roads to access motorways.
Always turn off the engine when refueling.
Be extremely careful not to spill fuel on the engine or on
the exhaust pipe when refueling.
Do not smoke when refueling.
While refueling, you may inhale noxious fuel vapors.
Should any fuel drops be spilled on your skin or clothing,
immediately wash with soap and water and change your
clothing.
Always remove the key when you leave your motorcycle
unattended.
The engine, exhaust pipes, and mufflers stay hot for a
long time.
Warning
The exhaust system might be hot, even after
engine is switched off; pay particular attention not to
touch exhaust system with any body part and do not park
the vehicle next to inflammable material (wood, leaves
etc.).
Park your motorcycle where no one is likely to hit it and
use the side stand.
Never park on uneven or soft ground or your motorcycle
may fall over.

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Carrying the maximum load allowed
Your motorcycle is designed for long-distance riding,
carrying the maximum load allowed in full safety and
comfort.
Even weight distribution is critical to preserving these
safety features and avoiding trouble when performing
sudden manoeuvres or riding on bumpy roads.
When the side panniers are fitted, never exceed
130 Km/h.
Further reduce speed if tyres are worn down and when
riding on poor road surface or with poor visibility.
Information about carrying capacity
The total weight of the motorcycle in running order
including rider, pillion passenger, luggage and additional
accessories should not exceed 420 Kg.
The weight of luggage alone should never exceed 23 Kg
divided as follows (fig. 1):
max 9 kg for each side pannier;
max 5 kg for tank bag.
fig. 1

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Try to arrange your luggage or heavy accessories in the
lowest possible position and close to motorcycle centre.
Be sure to secure the luggage to the supports provided
on the motorcycle as firmly as possible. Improperly
secured luggage may affect stability.
Never fix bulky or heavy objects to the handlebar or to
the front mud guard as this would affect stability and
cause danger.
Do not insert any objects you may need to carry into the
gaps of the frame as these may foul moving parts.
If you install the side panniers (available from Ducati
Spare Parts Department):
sort luggage and accessories so to distribute weight
evenly and then arrange them in the panniers so that
they are well balanced; lock both side panniers using the
suitable key lock.
Make sure the tyres are inflated to the proper pressure
indicated at page 70 and that they are in good condition.

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Identification data
All Ducati motorcycles have two identification numbers,
for frame (fig. 2) and engine (fig. 3).
Frame number
Engine number
Note
These numbers identify the motorcycle model and
should always be indicated when ordering spare parts.
fig. 3
fig. 2