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Dedicated Subsystem WorkbenchPlatform Gen: 1994–2026

2023 Harley-Davidson Road King / Road King Special (FLHR / FLHRC / FLHRXS) Charging System, Stator AC Output & Battery Health

Stator 3-phase AC voltage at 5,000 RPM, coil resistance, regulated DC voltage, battery code YTX30L-BS / H-D 66010-97D, CCA rating, and multimeter charging diagnostic steps for 2023 Harley-Davidson Road King / Road King Special (FLHR / FLHRC / FLHRXS).

Technical PassportOEM VERIFIED
Engine
1868cc
Cooling
Air / Oil-Cooled with Rubber-Isolated Frame Mounts
Final Drive
Belt Drive
Engine Oil
4.70 L (5.00 US qt)
Spark Plug
H-D 6R10 / 6R12
Front Tire
130/60B19 61H (Special) / 130/80B17 65H (Standard)
Gen 1994–2026

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 1994 through 2026.

SPECS-TO-CART BUNDLESFactory Direct-Fit Maintenance Bundles Available
1-Click verified Motul engine oil service kits, race filters, spark plugs, and brake fluid pre-measured for this 2023 Harley-Davidson Road King / Road King Special (FLHR / FLHRC / FLHRXS).
Configure Service Bundles→
Select Model Year:(Active: 2023)
33 Production Years (1994–2026)
Suggested Items3 Verified Workshop Consumables Available for this Job
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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 YTX30L-BS / H-D 66010-97D Batteries
OEM Battery Code
YTX30L-BS / H-D 66010-97D
Cold Cranking Rating
Not Available
Capacity (10HR Rate)
Not Available
Regulated Output Spec
Key-OFF Parasitic Limit
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: •

Harley-Davidson Diagnostic Fault Codes & Multimeter Bench Testing

FI & OBD2 Decoder
Authentic factory ECU fault codes, sensor resistance specifications, and harness pinout troubleshooting.
Launch Full Harley-Davidson DTC Engine→
Code P0107Manifold Absolute Pressure (MAP)
MAP sensor input low/open (< 0.20V DC) during key-on or running.
Test: 5.0V VRef at Pin 2; 4.5-5.0V signal key-on engine-off; Pin 1 ground < 0.1V.
Code P0374Crankshaft Position (CKP) Sensor
Zero sync pulses detected from CKP sensor during starter turnover.
Test: Measure 800-1,100 Ω across CKP pins; must generate ≥ 1.0V AC while cranking.
Code P1510Electronic Throttle Control (ETC)
EFI Limited Performance Mode (Limp Mode locked to 20-30% throttle).
Test: Inspect 6-pin throttle body connector for terminal fretting / backprobe TGS 5V sum.
Code B2161Body Control Module (BCM)
Brake Lamp Output open circuit detected when front or rear brake applied.
Test: Test 12V at Blue/Red wire at tail lamp socket; check front brake switch plunger.
Looking for other error codes, sensor pinouts, or OBD2/Euro 5 codes?

Official NHTSA Safety Recalls & Technical Bulletins

3 Active Campaigns
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 3 safety recall campaigns associated with this platform. Independent repair shops and riders should confirm that authorized dealership warranty remedies have been applied.
NHTSA #18V734000POWER TRAIN:CLUTCH ASSEMBLY
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Defect Description

Harley Safety Recall 0173: Secondary clutch actuator piston seal tear on 2017–2018 Road King and Road King Special models.

Safety Hazard / Consequence

Clutch disengagement failure when stopped in gear creates unintended motion hazard.

Factory Remedy & Repair Action

Dealers install upgraded secondary clutch actuator assembly (Kit #91500093).

NHTSA #16V471000POWER TRAIN:CLUTCH ASSEMBLY
▼
NHTSA #18V076000SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ABS
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OEM Workshop Archives

Official Factory Service Bulletins & Field Updates

3 Documented Bulletins
Bulletin #HD-0173Safety Recall Bulletin 0173 / NHTSA 18V-734: Touring & Softail Secondary Hydraulic Clutch Actuator Piston Assembly (Kit #91500093)
Source: RCMN-18V734-8825.pdf
Mandated Torques:Torque: 10–12 N·m (88–106 in-lb) (Transmission Side Cover Bolts - Cross Pattern)Torque: 26–30 N·m (19–22 lb-ft) (Hydraulic Clutch Line Banjo Bolt)Torque: 10–12 N·m (88–106 in-lb) (Secondary Actuator Bleeder Screw)
Consumable Specs:Harley-Davidson DOT 4 Platinum Brake FluidTransmission Side Cover Gasket
Genuine Part Numbers:9150009337200131A25700445
Bulletin #HD-0169Safety Recall Bulletin 0169 / NHTSA 16V-471: Hydraulic Clutch Master Cylinder Disengagement Inspection & Seal Flush
Source: RCRIT-16V471-6645.pdf
Mandated Torques:Torque: 8.0–10.2 N·m (70–90 in-lb) (Handlebar Clutch Master Cylinder Clamp Screws)Torque: 26–30 N·m (19–22 lb-ft) (Clutch Master Banjo Bolt)
Consumable Specs:Harley-Davidson DOT 4 Platinum Hydraulic FluidPurge Tubing & Catch Bottle
Genuine Part Numbers:37200025C41800041
Recalls 0169 & 0173 • NHTSA 16V-471 & 18V-734

Harley-Davidson Road King & Touring Secondary Hydraulic Clutch Actuator Architecture

Secondary clutch actuator cylinder piston seal inspection, DOT 4 Platinum purge, and transmission side cover torque.

TRANSMISSION RIGHT-SIDE ACTUATOR COVERSECONDARY CYLINDER BOREPISTONCUP SEALSTO CLUTCH PACKBANJO BOLT: 26-30 N·m(19-22 lb-ft • DOT 4 PLATINUM)BLEEDER: 10-12 N·mSIDE COVER BOLTS: 10-12 N·m (88-106 in-lb)RECALL 0173 REMEDY & SPECS:• Actuator Kit: Install OEM Recall Kit #91500093.• Seal Integrity: Inspect cylinder bore for scoring.• Fluid Spec: Harley DOT 4 Platinum Brake Fluid.• Master Cylinder Banjo: 26–30 N·m (19–22 lb-ft).• Actuator Bleeder Screw: 10–12 N·m (88–106 in-lb).• Side Cover Fasteners: 10–12 N·m in cross pattern.• Clutch Master Clamp: 8.0–10.2 N·m (70–90 in-lb).• Lever Freeplay: Verify positive disengagement.• Road King Front Axle: 102 N·m (75 lb-ft).• Road King Rear Axle: 129–142 N·m (95–105 lb-ft).• Brembo Reflex Calipers: 38–52 N·m (28–38 lb-ft).• Spark Plugs (4x M8): 16–24 N·m (Gap 0.8–0.9 mm).
Hydraulic Banjo Bolt26–30 N·m (19–22 lb-ft)
Actuator Bleeder Screw10–12 N·m (88–106 in-lb)
Side Cover Screws10–12 N·m (Cross Pattern)
Mandated Hydraulic FluidHarley DOT 4 Platinum
Bulletin #HD-0171Safety Recall Bulletin 0171 / NHTSA 18V-076: VRSC V-Rod & Touring ABS Hydraulic Control Unit (HCU) Valve Solenoid Flush
Source: RCRIT-18V076-3366.pdf
Mandated Torques:Torque: 26–30 N·m (19–22 lb-ft) (Front & Rear Master Cylinder Banjo Bolts)Torque: 10–12 N·m (88–106 in-lb) (Caliper Bleeder Screws)Torque: 38–52 N·m (28–38 lb-ft) (Front Caliper Mount Bolts)
Consumable Specs:Harley-Davidson DOT 4 Platinum Brake Fluid (Part #99953-99)Moisture Tester / Boiling Point Analyzer (< 3% moisture limit)
Genuine Part Numbers:99953-9942865-06B41800041

Explore Other Subsystems for this 2023 Harley-Davidson Road King / Road King Special (FLHR / FLHRC / FLHRXS)

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Subsystem Guide/torques

Fastener Torques

Engine drain plug, axle spindles, caliper mounts, triple clamp pinch bolts & thread lubrication derating guide.

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Subsystem Guide/fluids

Fluids & Capacities

Oil: 4.70 L (5.00 US qt) • Coolant: Not Applicable (Air / Oil Cooled) • Brake: N/A

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Subsystem Guide/fuses-relays

Fuses & Relays

Main: N/A • Location: N/A

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Subsystem Guide/compression

Compression & Leakdown

Ratio: N/A

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Subsystem Guide/valves

Valve Clearances

Intake: N/A mm • Exhaust: N/A mm

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Subsystem Guide/fuel-delivery

Fuel Delivery & TB Sync

Idle: N/A • Rail Pressure: N/A • Vacuum: N/A

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Subsystem Guide/tires

Tires & Gearing

Front: 130/60B19 61H (Special) / 130/80B17 65H (Standard) • Rear: 180/55B18 80H (Special) / 180/65B16 81H (Standard)

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Subsystem Guide/suspension

Suspension & Sag

Front Travel: N/A • Rear Travel: N/A

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Subsystem Guide/maintenance

Maintenance Schedule

Oil: N/A • Valves: N/A • Plugs: N/A

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