Dedicated Subsystem WorkbenchPlatform Gen: 2021–2026

2023 Aprilia Tuono 660 / Factory Charging System, Stator AC Output & Battery Health

Stator 3-phase AC voltage at 5,000 RPM, coil resistance, regulated DC voltage, battery code YTX9-BS (12V 8Ah), CCA rating, and multimeter charging diagnostic steps for 2023 Aprilia Tuono 660 / Factory.

Technical PassportOEM VERIFIED

Engine

659cc

Cooling

Liquid-Cooled

Final Drive

520 Chain

Engine Oil

2.70 L (2.85 US qt)

Spark Plug

NGK MR9DE-9

Front Tire

120/70 ZR17 (Pirelli Diablo Rosso Corsa II)

Browse Flagship Teardowns →

Gen 2021–2026

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2021 through 2026.

Select Model Year:(Active: 2023)
6 Production Years (2021–2026)

2021 2022 2023 2024 2025 2026

Suggested Items3 Verified Workshop Consumables Available for this Job

View Suggested Items ↓

3-Phase Charging System & Battery Diagnostic Flowchart

Yuasa & OEM Standards

Multimeter troubleshooting protocols, cold cranking amps (CCA) ratings, 3-phase stator AC outputs, and regulator-rectifier health verification.

Shop YTX9-BS (12V 8Ah) Batteries

OEM Battery Code

YTX9-BS (12V 8Ah)

Cold Cranking Rating

Not Available

Capacity (10HR Rate)

Not Available

Regulated Output Spec

Key-OFF Parasitic Limit

Enter Multimeter DC Voltage Reading

V DC

Multimeter Test Diagnosis

Enter your multimeter terminal reading on the left to view instant diagnostic interpretations and recommended workshop actions.

OEM Factory AGM BatteryOEM Replacement

Dimensions: • Weight: Not Available. Pre-filled absorbed glass mat technology engineered for heavy vibration resistance.

Lithium LiFePO4 UpgradeUp to 70% Lighter

Features built-in RE-START jump starting reserve. Never stranded by dead lights: press the restart button on the top terminal to crank the motorcycle without jumper cables.

Smart Maintainer SpecBattery Life Extension

Standard Charge Rate: . Automated desulfation & float maintenance ensures full capacity retention during off-season winter storage.

Recommended Parts: •

Shop Smart Battery Chargers Find Direct-Fit Batteries

Aprilia Diagnostic Fault Codes & Multimeter Bench Testing

FI & OBD2 Decoder

Authentic factory ECU fault codes, sensor resistance specifications, and harness pinout troubleshooting.

Launch Full Aprilia DTC Engine→

Code P0105Manifold Absolute Pressure (MAP) Sensor

Intake air pressure sensor electrical fault or vacuum hose disconnected.

Test: Check 5.0V VRef and sensor output 2.5-3.0V at atmospheric pressure.

Code P0115Engine Coolant Temperature (ECT) Sensor

Coolant temperature sensor circuit open or shorted out of range.

Test: Measure NTC thermistor: ~2.5 kΩ at 20°C (68°F), 300 Ω at 80°C (176°F).

Code P0120Throttle Position Sensor (TPS / APS)

Ride-by-wire dual potentiometer track correlation fault.

Test: Measure APS Track 1 (0.8-4.2V) and Track 2 (0.4-2.1V); verify smooth 2:1 ratio.

Code P0335Crankshaft Position Pick-Up Sensor (CPS)

Zero timing pulses detected from VR sensor during engine cranking.

Test: Measure inductive pickup coil resistance: 560-680 Ω across 2-pin connector.

Code P0505Idle Speed Stepper Control

Idle air bypass stepper motor position error or vacuum leak.

Test: Clean stepper valve bore; perform Marelli / Bosch ECU adaptation reset.

Code P1600CAN Bus Line / Dashboard Comm Timeout

CAN communication lost between Magneti Marelli / Bosch ECU and APRC IMU / TFT Dash.

Test: Measure 60 Ω CAN termination resistance between CAN-H and CAN-L with ignition off.

Looking for other error codes, sensor pinouts, or OBD2/Euro 5 codes?

View All 68 Multi-Brand Diagnostic Trouble Codes →

Official NHTSA Safety Recalls & Technical Bulletins

1 Active Campaign

U.S. Department of Transportation compliance database (Title 49 U.S.C. Chapter 301).

Verify VIN on NHTSA.gov

The U.S. National Highway Traffic Safety Administration reports 1 safety recall campaign associated with this platform. Independent repair shops and riders should confirm that authorized dealership warranty remedies have been applied.

NHTSA #21V502000REMEDY UPDATEDENGINE AND ENGINE COOLING:ENGINE:CONNECTING ROD

Received: 06/28/2021▼

Defect Description

Piaggio Safety Recall PA2ZZQ2107: Connecting rod metallurgical fracture may cause catastrophic engine failure and oil leakage onto rear tire.

Safety Hazard / Consequence

Connecting rod breakage leads to engine seizure, loss of drive power, and potential fire hazard or crash.

Factory Remedy & Repair Action

Dealers will replace the engine, free of charge. Owner notification letters were mailed on July 9, 2021. Owners may contact Aprilia customer service at 1-212-380-4400. Aprilia's number for this recall is PA2ZZQ2107.

Manufacturer Notes: Piaggio Campaign Number PA2ZZQ2107. Pinion screw 50 N·m, exhaust manifold 20 N·m, oil drain 25 N·m.

OEM Workshop Archives

Official Factory Service Bulletins & Field Updates

1 Documented Bulletin

Bulletin #PA2ZZQ2107Safety Recall 21V-502 / PA2ZZQ2107: RS 660 & Tuono 660 Connecting Rod Breakage -> Complete Crated Engine Replacement

Source: RCRIT-21V502-0825.pdf

Mandated Torques:Engine Pinion / Countershaft Sprocket Screw (B043047): 50 N·m (37 lb-ft) (Loctite 243)Exhaust Manifold Flange Nuts (4x M8): 20 N·m (14.7 lb-ft) (new gaskets 852090)Engine Oil Drain Plug (831393): 25 N·m (18.5 lb-ft) (new crush washer)Coolant Discharge / Drain Screw (847239): 12 N·m (106 in-lb)Front & Rear Engine Hanger Frame Bolts (M10): 50 N·m (37 lb-ft)

Consumable Specs:Castrol POWER1 ULTIMATE 4T 10W-50 Synthetic Motorcycle Engine Oil (2.70 L)Castrol Radicool / ENI Antifreeze Spezial OAT Organic Coolant (1.80 L)Loctite 243 Medium-Strength Threadlocker2x Exhaust Header Gaskets (852090)

Genuine Part Numbers:CM2966115 (Factory Crated Replacement 659cc Long-Block Engine)1L006293C (Engine Replacement Installation Hardware & Gasket Kit)B043047 (Countershaft Sprocket Retaining Screw M10x1.25)852090 (Exhaust Manifold Header Gasket)

Safety Recall 21V-502 / PA2ZZQ2107Noale 660 Twin Platform