APRILIA Tuono 660 2021 Guide

SERVICE STATION MANUAL
2Q000453
RS 660 - Tuono 660

SERVICE STATION
MANUAL
RS 660 - Tuono 660
THE VALUE OF SERVICE
Due to continuous updates and technical training programmes specific to aprilia products, only Aprilia
Official Network mechanics know this vehicle fully and have the specific tools necessary to carry out
maintenance and repair operations correctly.
Thereliabilityofthevehiclealsodependsonitsmechanicalconditions.Checkingthevehiclebeforeriding
it, performing maintenance correctly and using only original Aprilia spare parts are essential factors
for the reliability of your vehicle!
For information on the nearest Official Dealer and/or Service Centre consult our website:
www.aprilia.com
Only by requesting original aprilia spare parts can you be of purchasing products that were developed
andtested duringthe designand developmentof thevehicle itself.All Apriliaoriginal spareparts undergo
quality control procedures to guarantee reliability and durability.
The descriptions and images in this publication are given for illustrative purposes only.
While the basic features as described and illustrated in this manual remain unchanged, Piaggio & C.
S.p.A. reserves the right, at any time and without being required to update this publication beforehand,
to make any changes to components, parts or accessory supplies which it deems necessary to improve
the product, or which are required for manufacturing or commercial reasons.
Notallversions/modelsshowninthispublicationareavailableinallcountries.Theavailabilityofindividual
versions/models should be confirmed with the official Aprilia sales network.
The Aprilia trademark is the property of Piaggio & C. S.p.A.
© Copyright 2021 - Piaggio & C. S.p.A. All rights reserved. Reproduction of this publication in whole or
in part is prohibited.
Piaggio & C. S.p.A. Viale Rinaldo Piaggio, 25 - 56025 PONTEDERA (PI), Italy
www.piaggio.com

SERVICE STATION MANUAL
RS 660 - Tuono 660
This manual provides the main information to carry out regular maintenance operations on your vehicle.
This manual is intended to Aprilia Dealers and their qualified mechanics; several concepts have been
deliberately omitted as they are considered unnecessary. As it is not possible to include complete
mechanical notions in this manual, users should have basic mechanical knowledge or minimum
knowledge about the procedures involved when repairing scooters. Without this knowledge, repairing or
checking the vehicle may be inefficient or even dangerous. As the vehicle repair and check procedures
are not described in detail, be extremely cautious so as not to damage components or injure individuals.
In order to optimise customer satisfaction when using our vehicles, Piaggio & C. S.p.a. commits itself
to continually improve its products and the relative documentation. The main technical modifications and
changes in repair procedures are communicated to all Aprilia Sales Outlets and its International
Subsidiaries. These changes will be introduced in the subsequent editions of the manual. In case of
need or further queries on repair and check procedures, consult Aprilia CUSTOMER DEPARTMENT,
which will be prepared to provide any information on the subject and any further communications on
updates and technical changes related to the vehicle.
NOTE Provides key information to make the procedure easier to understand and carry out.
CAUTION Refers to specific procedures to carry out for preventing damages to the vehicle.
WARNING Refers to specific procedures to carry out to prevent injuries to the repairer.
Personal safety Failure to completely observe these instructions will result in serious risk of personal
injury.
Safeguarding the environment Sectionsmarked with this symbol indicate the correctuse of thevehicle
to prevent damaging the environment.
Vehicle intactness The incomplete or non-observance of these regulations leads to the risk of serious
damage to the vehicle and sometimes even the invalidity of the guarantee

INDEX OF TOPICS
PRE-DELIVERY PRE DE
CHARACTERISTICS CHAR
SPECIAL TOOLS S-TOOLS
MAINTENANCE MAIN
ELECTRICAL SYSTEM ELE SYS
ENGINE ENG
POWER SUPPLY P SUPP
SUSPENSIONS SUSP
CHASSIS CHAS
BRAKING SYSTEM BRAK SYS
COOLING SYSTEM COOL SYS
BODYWORK BODYW

INDEX OF TOPICS
PRE-DELIVERY PRE DE

Aesthetic inspection
- Paintwork
- Fitting of Plastic Parts
- Scratches
- Dirt
Tightening torques inspection
- Safety fasteners:
front and rear suspension unit
front and rear brake calliper retainer unit
front and rear wheel unit
engine - chassis retainers
steering assembly
- Plastic parts fixing screws
Electrical system
- Main switch
- Headlamps: high beam lights, low beam lights, taillights (front and rear) and relevant warning lights
- Headlight adjustment according to regulations in force
- Rear brake light push-button
- Turn indicators and their warning lights
- Instrument cluster
- Instrument cluster warning lights
- Horn
- Electric starter
- Engine stop via emergency stop switch and side stand
- Through the diagnostic tool, check that the last mapping version is present in the control unit/s and,
if required, program the control unit/s again: consult the technical service website to know about avail-
able upgrades and details regarding the operation.
CAUTION
TO ENSURE MAXIMUM PERFORMANCE, THE BATTERY MUST BE CHARGED BEFORE USE.
THE LACK OF AN ADEQUATE BATTERY CHARGE BEFORE THE FIRST USE WILL CAUSE A
PREMATURE FAILURE OF THE BATTERY.
CAUTION
RS 660 - Tuono 660 Pre-delivery
PRE DE - 7

WHEN INSTALLING THE BATTERY, ATTACH THE POSITIVE LEAD FIRST AND THEN THE NEG-
ATIVE ONE, AND PERFORM THE REVERSE OPERATION DURING REMOVAL.
CAUTION
NEVER USE FUSES WITH A CAPACITY HIGHER THAN THAT RECOMMENDED. THE USE OF A
FUSE OF UNSUITABLE CAPACITY MAY RESULT IN SERIOUS DAMAGES TO THE WHOLE VE-
HICLE OR EVEN CAUSE A FIRE.
- Check the battery charge by holding down the
TEST button on the BATTERY CAPACITY INDI-
CATOR located between the terminals on the top
of the battery.
Depending on the present indication and consult-
ing the table, if necessary charge the battery.
CHARGE LEVEL
ACTION NUMBER OF BARS
Ready for use 5 - 6
Charging recommended 3 - 4
Charging necessary 1 - 2
Fault 0
RECHARGE
- Always use a specific charger for lithium batteries to recharge the battery.
- To avoid damage to the battery, the charging voltage must NEVER be higher than 15 volts.
- Do not charge the battery with a charger with automatic DESULPHATION MODE using a voltage
higher than 15 volts.
- Always remove the battery from the vehicle before connecting it to the charger.
-Stopcharging if thebatteryfeels warmtothetouch. Allowthebatteryto coolbeforeresumingcharging.
- After recharging the battery, leave it to stand for 1 hour before pressing the TEST button on the
BATTERY CAPACITY INDICATOR. If the indicator is between 1 and 4 notches, the battery should be
further charged.
CHARGE MODES
Normal recharge
- Electric current: 2,0 A
- Time: 2 hours
Quick charge
- Electric current: 8 A
- Time: 0,5 hours
WARNING
THE CHARGE VOLTAGE MUST NEVER EXCEED 15V.
WARNINGS
Pre-delivery RS 660 - Tuono 660
PRE DE - 8

- Do not knock, throw or subject the battery to violent shocks.
- Do not carry the battery together with flammable, explosive or sharp objects.
- NEVER attempt to open the battery.
- Keep the connecting poles clean and firmly secured at all times.
- Do not immerse the battery in water, or leave it exposed to moisture.
- Do not connect the battery directly to wall outlets.
- Do not subject the battery to short circuit by connecting cables or other metallic objects to the positive
and negative terminals.
- Do not pierce the battery casing with nails or other sharp objects, do not try to forcibly open it or step
on it.
- Do not perform welds on the battery terminals.
- Do not use the battery in combination with primary batteries (such as dry batteries) or batteries of
different capacity, type and brand.
-Donotusethebatteryifitemitsastrangeodour,emitsheat,changescolouror deforms, or ifit presents
any anomaly. Stop use immediately if the battery is in use or under charge.
THE BATTERY DOES NOT CONTAIN HARMFUL POLLUTANTS, CORROSIVE ACIDS OR TOXIC
HEAVY METALS
(IF AVAILABLE)
TRADITIONAL BATTERY ACTIVATION PRO-
CEDURE
•Place the battery on a flat surface.
•Remove the cell's protective sticker.
•Take the acid container.
•Remove the cap 1 of the container 2.
•Place the container upside down, per-
pendicularly above the battery, align-
ing the outlets with the battery cells.
•Apply pressure to the container to
break the seals. The liquid will begin to
flow into the cells.
RS 660 - Tuono 660 Pre-delivery
PRE DE - 9

•Check that air bubbles come out of the
cells; let the liquid flow into the cells for
at least 20 minutes.
•If no air bubbles escape and the liquid
does not flow, tap lightly on the bottom
of the container until the liquid begins
to flow into the cells. Never remove the
container from the battery, pierce it or
cut it to facilitate the exit of the liquid.
•Make sure the liquid container is com-
pletely empty before removing it.
•Allow the battery to stand for at least 1
hour,beforestartingthe chargingproc-
ess, without closing the six cells. This
operation is extremely important in or-
der to have the best battery perform-
ance over time.
•Recharge the battery following the
specifications indicated on the battery
(see photo ) and using a suitable bat-
tery charger.
NOTE
IN THE SHOWN EXAMPLE IT IS IMPORTANT TO USE A
BATTERYCHARGERWITH1.2AMPERE (CHARGING TIME
5-10 HOURS) OR 5 AMPERE (CHARGING TIME 1 HOUR).
Levels check
- Hydraulic braking system fluid level
- Clutch system fluid level
- Engine coolant level
- Engine oil level
Road test
- Cold start
- Instrument panel operation
- Response to throttle control
- Stability when accelerating and braking
- Front and rear brake efficiency
- Front and rear suspension efficiency
Pre-delivery RS 660 - Tuono 660
PRE DE - 10

- Abnormal noise
Static test
Static control after the test drive:
- Restarting when warmed up
- Idling
- Uniform turning of the steering
- Possible leaks
- Radiator electric fans operation
Functional inspection
- Hydraulic braking system
- Brake and clutch lever travel
- Clutch - Check for correct operation
- Engine - Check for correct general operation and absence of abnormal noise
- Other
- Documentation check:
- Check the frame and engine numbers
Check included tools (where applicable)
- Licence plate fitting
- Locks checking
- Tyre pressure check
- Fitting of mirrors and possible accessories
NEVER EXCEED THE RECOMMENDED INFLATION PRESSURES SINCE THE TYRES MAY
BURST.
CAUTION
CHECK AND ADJUST TYRE PRESSURE WITH TYRES AT AMBIENT TEMPERATURE.
RS 660 - Tuono 660 Pre-delivery
PRE DE - 11

INDEX OF TOPICS
CHARACTERISTICS CHAR

Rules
Safety rules
Carbon monoxide
If you need to keep the engine running while working on the vehicle, please ensure that you do so in
an open or very well ventilated area. Never run the engine in an enclosed area. If you do work in an
enclosed area, make sure to use a fume extraction system.
CAUTION
EXHAUSTEMISSIONSCONTAINCARBONMONOXIDE,APOISONOUSGASWHICHCANCAUSE
LOSS OF CONSCIOUSNESS AND EVEN DEATH.
Fuel
CAUTION
FUEL USED TO DRIVE EXPLOSION ENGINES IS HIGHLY INFLAMMABLE AND CAN BECOME
EXPLOSIVE UNDER SPECIFIC CONDITIONS. IT IS THEREFORE RECOMMENDED TO CARRY
OUT REFUELLING AND MAINTENANCE PROCEDURES IN A VENTILATED AREA WITH THE EN-
GINE SWITCHED OFF. DO NOT SMOKE DURING REFUELLING OR NEAR FUEL VAPOUR. AVOID
ANY CONTACT WITH NAKED FLAME, SPARKS OR OTHER HEAT SOURCES WHICH MAY
CAUSE IGNITION OR EXPLOSION.
DO NOT ALLOW FUEL TO DISPERSE INTO THE ENVIRONMENT.
KEEP OUT OF THE REACH OF CHILDREN.
Hot parts
The engine and the exhaust system components get very hot and remain in this condition for a certain
time interval after the engine has been switched off. Before handling these components, make sure that
you are wearing insulating gloves or wait until the engine and the exhaust system have cooled down.
Coolant
The coolant contains ethylene glycol which, under certain conditions, can become flammable.
When it burns, ethylene glycol produces an invisible flame which however can cause burns.
CAUTION
TAKE PARTICULAR CARE NOT TO SPILL COOLANT ONTO HOT PARTS OR THE ENGINE AND
EXHAUST SYSTEM; THE FLUID MAY CATCH FIRE AND BURN WITH INVISIBLE FLAMES. WHEN
CARRYING OUT MAINTENANCE OPERATIONS, IT IS ADVISABLE TO WEAR LATEX GLOVES.
WHILE POISONOUS, COOLANT HAS A SWEET TASTE WHICH MAKES IT EXTREMELY AP-
PEALING TO ANIMALS. NEVER LEAVE COOLANT IN OPEN CONTAINERS WHERE IT MAY BE
REACHED AND DRUNK BY AN ANIMAL.
RS 660 - Tuono 660 Characteristics
CHAR - 13

KEEP OUT OF THE REACH OF CHILDREN.
NEVER REMOVE THE RADIATOR CAP WHILE THE ENGINE IS STILL HOT. COOLANT IS UNDER
PRESSURE AND MAY CAUSE BURNS.
Used engine oil and transmission oil
CAUTION
WHEN CARRYING OUT MAINTENANCE OPERATIONS, IT IS ADVISABLE TO WEAR PROTEC-
TIVE IMPERMEABLE GLOVES.
THE ENGINE OR GEARBOX OIL MAY CAUSE SERIOUS INJURIES TO THE SKIN IF HANDLED
FOR PROLONGED PERIODS OF TIME AND ON A REGULAR BASIS.
WASH YOUR HANDS CAREFULLY AFTER HANDLING OIL.
HAND THE OIL OVER TO OR HAVE IT COLLECTED BY THE NEAREST USED OIL RECYCLING
COMPANY OR THE SUPPLIER.
DO NOT DISPOSE OF OIL IN THE ENVIRONMENT
KEEP OUT OF THE REACH OF CHILDREN.
BRAKE FLUID CAN DAMAGE PAINT FINISH, PLASTIC AND RUBBER. WHEN SERVICING THE
BRAKING SYSTEM, PROTECT THESE COMPONENTS WITH A CLEAN CLOTH. ALWAYS WEAR
PROTECTIVE EYEWEAR WHEN WORKING ON THE BRAKE SYSTEM. BRAKE FLUID IS EX-
TREMELY HARMFUL FOR THE EYES. IN THE EVENT OF ACCIDENTAL CONTACT WITH THE
EYES, RINSE THE EYES IMMEDIATELY WITH PLENTY OF COOL, CLEAN WATER AND SEEK
IMMEDIATE MEDICAL ATTENTION.
KEEP OUT OF THE REACH OF CHILDREN.
Battery electrolyte and hydrogen gas (WHERE REQUIRED)
CAUTION
THE BATTERY ELECTROLYTE IS TOXIC, CORROSIVE AND, AS IT CONTAINS SULPHURIC
ACID, MAY CAUSE BURNING IF IT COMES INTO CONTACT WITH THE SKIN. WHEN HANDLING
BATTERY ELECTROLYTE, WEAR TIGHT-FITTING GLOVES AND PROTECTIVE APPAREL. IN
THE EVENT OF SKIN CONTACT WITH THE ELECTROLYTIC FLUID, RINSE WELL WITH PLENTY
OF CLEAN WATER. IT IS PARTICULARLY IMPORTANT TO PROTECT YOUR EYES BECAUSE
EVEN TINY AMOUNTS OF BATTERY ACID MAY CAUSE BLINDNESS. IN THE EVENT OF CON-
TACT WITH THE EYES, RINSE WITH PLENTY OF WATER FOR FIFTEEN MINUTES AND CON-
SULT AN EYE SPECIALIST IMMEDIATELY. THE BATTERY RELEASES EXPLOSIVE GASES;
KEEP IT AWAY FROM FLAMES, SPARKS, CIGARETTES OR ANY OTHER HEAT SOURCES. EN-
SURE ADEQUATE VENTILATION WHEN SERVICING OR RECHARGING THE BATTERY.
KEEP OUT OF THE REACH OF CHILDREN.
BATTERY LIQUID IS CORROSIVE. DO NOT POUR OR SPILL ON PLASTIC COMPONENTS IN
PARTICULAR. ENSURE THAT THE ELECTROLYTIC ACID IS COMPATIBLE WITH THE BATTERY
BEING ACTIVATED.
Maintenance rules
GENERAL PRECAUTIONS AND INFORMATION
When repairs, disassembly and reassembly of the vehicle is carried out, follow the following recom-
mendations strictly.
BEFORE DISASSEMBLING COMPONENTS
Characteristics RS 660 - Tuono 660
CHAR - 14

•Remove the dirt, mud, dust and foreign objects from the vehicle before disassembling com-
ponents. Wherever required, use the special tools designed for this vehicle.
DISASSEMBLING COMPONENTS
•Do not loosen and/or tighten the screws and nuts using pliers or other tools, but always use
the specific wrench.
•Mark the positions on all the connection joints (hoses, cables, etc.) before separating them
and identify them with different distinctive marks.
•Each piece should be clearly marked in order to be identified during the installation phase.
•Carefully clean and wash the disassembled components with detergents with a low flam-
mability grade.
•Keep the coupled parts together because they have "adapted" to one another following
normal wear.
•Some components must be used together or replaced entirely.
•Keep away from heat sources.
REASSEMBLING THE COMPONENTS
CAUTION
THE BEARING MUST ROTATE FREELY, WITHOUT JAMMING AND/OR NOISE, OTHERWISE
THEY MUST BE REPLACED.
•Use only aprilia ORIGINAL SPARE PARTS.
•Always use the recommended lubricants and consumable material.
•Lubricate the parts (when possible) before reassembling them.
•Whentighteningscrewsandnuts,beginwiththelargerdiameterorinternalones,proceeding
diagonally. Tighten with subsequent steps before applying the prescribed torque.
•Always replace the locknuts, gaskets, seal rings, snap rings, O-Rings (OR), cotter pins and
screws if they have damaged thread, with new ones.
•When disassembling the bearings, lubricate them abundantly.
•Ensure that each component has been assembled correctly.
•After a repair or periodic maintenance operation, carry out the preliminary checks and test
the vehicle on private property or in an area with light traffic.
•Clean all coupling surfaces, oil seal rims and gaskets before refitting them. Smear a light
layer of lithium-based grease on the oil seal rims. Reassemble oil seals and bearings with
the brand or lot number facing outward (visible side).
ELECTRICAL CONNECTORS
The electrical connectors should be disconnected as follows. Failure to observe these procedures will
cause irreparable damage to the connector and the wiring:
If present, press on the specific safety catches.
•Grip the two connectors and unplug them, pulling them apart in opposite directions.
RS 660 - Tuono 660 Characteristics
CHAR - 15

•If there is dirt, rust, moisture, etc., carefully clean the inside of the connector using pressur-
ised air.
•Ensure that the cables make correct contact with the terminals inside the connectors.
•Then plug in the two connectors, ensuring correct coupling (if the specific catches are
present, you will hear a typical "click").
CAUTION
TO UNPLUG THE TWO CONNECTORS, DO NOT PULL ON THE CABLES.
NOTE
THE TWO CONNECTORS CAN BE PLUGGED IN ONLY IN ONE DIRECTION, THEREFORE JOIN
THEM TOGETHER IN THE RIGHT DIRECTION.
TIGHTENING TORQUE
CAUTION
IN THE EVENT THAT A SELFBRAKING NUT IS UNSCREWED, IT IS NECESSARY TO REPLACE
IT WITH A NEW ONE.
CAUTION
REMEMBER THAT THE TIGHTENING TORQUE FOR ALL THE FIXING ELEMENTS LOCATED ON
WHEELS, BRAKES, WHEEL AXLES AND OTHER SUSPENSION COMPONENTS PLAY A FUN-
DAMENTAL ROLE IN GUARANTEEING THE SAFETY OF THE VEHICLE AND MUST BE KEPT AT
THE PRESCRIBED VALUES. REGULARLY CHECK THE TIGHTENING TORQUE OF THE FIXING
ELEMENTS AND ALWAYS USE A TORQUE WRENCH WHEN REFITTING. IF THESE WARNINGS
ARE NOT OBSERVED, ONE OF THESE COMPONENTS COULD LOOSEN AND COME OFF,
BLOCKING A WHEEL OR CAUSING OTHER PROBLEMS THAT WOULD COMPROMISE MA-
NOEUVRABILITY, LEADING TO A CRASH WITH THE RISK OF SERIOUS INJURY OR EVEN
DEATH.
Running-in
Runningthe engine incorrectly is essentialfor ensuring enginelongevity and functionality.Twisty roads
and gradients are ideal for running in the engine, brakes and suspension effectively. Vary your riding
speed during the running in period. This ensures that components operate in "loaded" conditions and
then "unloaded" conditions, allowing the engine components to cool.
CAUTION
THE FULL PERFORMANCE OF THE VEHICLE IS ONLY AVAILABLE AFTER THE SERVICE AT
THE END OF THE RUNNING IN PERIOD.
Follow these guidelines:
•Do not fully open the throttle grip abruptly at low engine speeds, either during or after the
running in period.
•During the first 100 Km (62 miles) use the brakes gently, avoiding sudden or prolonged
braking. This allows the brake pad friction material to bed in correctly with the brake discs.
•Preferably do not exceed 7500 rpm during the first 1000 km (621 mi) and 9500 rpm from
1000 to 2000 km (1243 mi).
AFTER THE SPECIFIED MILEAGE, TAKE YOUR VEHICLE TO AN Official Aprilia Dealer FOR THE
CHECKS INDICATED IN THE "RECOMMENDED PRODUCTS" TABLE IN THE SCHEDULED MAIN-
Characteristics RS 660 - Tuono 660
CHAR - 16

TENANCE SECTION TO AVOID INJURING YOURSELF, OTHERS AND /OR DAMAGING THE
VEHICLE.
Vehicle identification
SERIAL NUMBER LOCATION
These numbers are necessary for vehicle registration.
NOTE
ALTERING IDENTIFICATION NUMBERS MAY BE SERIOUSLY PUNISHABLE BY LAW. IN PAR-
TICULAR, MODIFYING THE CHASSIS NUMBER IMMEDIATELY VOIDS THE WARRANTY.
This number consists of numbers and letters, as in the example shown below.
ZD4KSA000YSXXXXXX
KEY:
ZD4: WMI (World Manufacturer Identifier) code;
KS: model;
A00: Europe; UA0: USA
0: digit free;
Y: year of manufacture;
S: production plant (S= Scorzè);
XXXXXX: serial number (6 digits);
CHASSIS NUMBER
The chassis number is stamped on the RH side of
the headstock.
Chassis No. ....................
ENGINE NUMBER
The engine number is stamped on the engine
crankcase, at the rear near the shock absorber.
Engine No. ....................
RS 660 - Tuono 660 Characteristics
CHAR - 17

Dimensions and mass
DIMENSIONS AND MASS
Specification Desc./Quantity
Max. length 1995 mm (78.54 in)
Max. width (at handlebar) 745 mm (29.33 in)
Max. height (to top fairing) 1,150 mm (45.27 in)
Wheelbase 1370 mm (53.93 in)
Kerb weight 183 kg (403.44 lb)
Weight fully loaded 258 kg (568.79 lb)
Engine
ENGINE
Specification Desc./Quantity
Type 2 cylinder in line (transverse), 4 stroke, 4 valves per cylinder,
double overhead camshafts
Engine capacity 40.21 cu in (659 cc)
Bore / stroke 3.19 in / 2.52 in (81 mm / 63.93 mm)
Compression ratio 13.5 +/- 0.5: 1
Intake valve clearance 0.10 - 0.15 mm (0.0039 - 0.0059 in)
Exhaust valve clearance 0.10 - 0.20 mm (0.0039 - 0.0078 in)
Idle engine speed 1400 +/- 100 rpm
Engine revs at maximum speed 10500 +/- 100 rpm
Clutch Multi plate wet clutch with mechanical control lever on left side
of the handlebar. Anti-juddering and slipper clutch systems
Starting Electric
Timing system Morse chain on intake and exhaust camshafts, bucket tappets
and valve clearance adjustment with calibrated pads
Lubrication system Wet sump with heat exchanger coaxial with oil filter
Oil pump Trochoidal pump
Oil filter With external cartridge filter
Cooling Liquid
Cooling system 3-way thermostatic valve, cooling radiator with electric fan and
expansion tank
Coolant pump Centrifugal bearingless aspirating pump with integrated alumi-
nium gasket
Air filter Polyester
Transmission
DRIVE RATIOS
Specification Desc./Quantity
Primary drive ratio 39 / 80 (with gears)
Drive ratio, 1st gear 17 / 46 (secondary)
Drive ratio, 2nd gear 16 / 33 (secondary)
Drive ratio, 3rd gear 24 / 39 (secondary)
Drive ratio, 4th gear 19 / 26 (secondary)
Drive ratio, 5th gear 21 / 25 (secondary)
Drive ratio, 6th gear 22 / 23 (secondary)
Final drive ratio 17 / 43
ELECTRONIC CONTROL SYSTEMS
Specification Desc./Quantity
a-PRC system (Aprilia Performance Ride Control) which includes: AEM (en-
ginemap management system), AEB (enginebrake map man-
agement system), ABS (anti-lock braking system), ATC
(traction control), AWC (wheelie control), AQS (assisted shift
Characteristics RS 660 - Tuono 660
CHAR - 18

Specification Desc./Quantity
system for clutchless upshifts and downshifts), PIT (pit lane
speed limiter) (where applicable).
Capacities
CAPACITY
Specification Desc./Quantity
Fuel tank capacity (including reserve) 15 l (3.30 UK gal; 3.96 US gal)
Fuel tank reserve capacity 3.5 l (0.77 UK gal; 0.92 US gal)
Engine oil oil change and oil filter replacement: 2700 cc in (164.76 cu in)
Coolant 1.8 +/- 0.2 l (0.39 +/- 0.04 UK gal; 0.47 +/- 0.05 US gal)
Seats 2
Maximum weight limit 393 kg (866.41 lb)
Drive chain
DRIVE CHAIN
Specification Desc./Quantity
Type Regina 110 links
With sealed master link
Model 520 - 135 - ZRA
Electrical system
ELECTRICAL SYSTEM
Specification Desc./Quantity
Spark plugs NGK IR MR9DI-7
Electrode gap 0.7 - 0.8 mm (0.027 - 0.031 in)
Battery BS BATTERY BSLi-04 LITHIUM, 12V 48Wh 280A
Alternative solution:
YUASA YTZ10S, 12V 8.6 Ah
Coils Stick coil
Recharging system Flywheel with rare earth magnets
Alternator 360 W
Main fuses 30A
Secondary fuses 2A, 5A (5) - 7.5A (3) - 15A - 20A
INDICATOR LAMPS
Specification Desc./Quantity
Neutral LED
High beam light LED
Cruise control LED
ABS LED
MI LED
Turn indicators LED
Overspeed threshold/shift light LED
Immobilizer LED
Fuel reserve LED
a-PRC LED
General warning LED
DRL LED
Side stand LED
RS 660 - Tuono 660 Characteristics
CHAR - 19

Frame and suspensions
FRAME
Specification Desc./Quantity
Type Adjustable composite structure aluminium frame with cast el-
ements.
Steering rake angle 24.1° (measurements with respect to bare chassis)
SUSPENSIONS
Specification Desc./Quantity
Front fork Adjustable upside-down hydraulic fork with 41 mm (1.61 in)
stanchions
Front stroke 120 mm (4.72 in)
Rear shock absorber Piggyback shock absorber with adjustable spring pre-load,
length and hydraulic rebound damping.
Rear stroke 52 mm (2.05 in)
DIMENSIONS A AND B
Specification Desc./Quantity
Size "A" 655.5 mm (25.80 in) (measurements refer to the bare chassis)
Size "B" 337.5 mm (13.28 in) (measurements refer to the bare chassis)
Angle "C" 24.1° (measurements with respect to bare chassis)
Brakes
BRAKES
Specification Desc./Quantity
Front 320 mm (12.60 in) discs, four-piston callipers - with 32 mm
(1.26 in) pistons and 2 pads - radial master cylinder and steel
braided brake hose.
Rear 220 mm (8.66 in) disc, two-piston calliper - with 34 mm (1.34
in) pistons - master cylinder with integrated reservoir and steel
braided brake hose.
Tightening Torques
If the following tables do not expressly indicate the tightening torque values, refer to the table with the
generic torque values indicated below.
GENERAL TIGHTENING TORQUES
M4 M5 M6 M8 M10 M12
Metric tightening torque: TE - TEFL - SHC - TBEI
- TCC - TS 3 Nm (2.21 lb ft) 6 Nm (4.43 lb ft) 10 Nm (7.38 lb ft) 25 Nm (18.44lbft) 50 Nm (36.88lbft) 80 Nm (59.00lbft)
Characteristics RS 660 - Tuono 660
CHAR - 20