Dedicated Subsystem WorkbenchPlatform Gen: 1990–2026

2022 Harley-Davidson Fat Boy / Fat Boy 114 (FLSTF / FLFB / FLFBS) Charging System, Stator AC Output & Battery Health

Stator 3-phase AC voltage at 5,000 RPM, coil resistance, regulated DC voltage, battery code YTX20HL-BS / H-D 65989-97E, CCA rating, and multimeter charging diagnostic steps for 2022 Harley-Davidson Fat Boy / Fat Boy 114 (FLSTF / FLFB / FLFBS).

Technical PassportOEM VERIFIED

Engine

1868cc

Cooling

Air / Oil-Cooled with Dual Internal Counterbalancers

Final Drive

Belt Drive

Engine Oil

4.70 L (5.00 US qt)

Spark Plug

H-D 6R10 / 6R12

Front Tire

160/60R18 70V

Gen 1990–2026

Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 1990 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 2022 Harley-Davidson Fat Boy / Fat Boy 114 (FLSTF / FLFB / FLFBS).

Configure Service Bundles→

Select Model Year:(Active: 2022)
37 Production Years (1990–2026)

1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 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 YTX20HL-BS / H-D 65989-97E Batteries

OEM Battery Code

YTX20HL-BS / H-D 65989-97E

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

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?

View All 68 Multi-Brand Diagnostic Trouble 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 #25V375000SUSPENSION:REAR:SHOCK ABSORBER

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Defect Description

Harley Safety Recall 0188: 2018–2024 Softail rear shock pre-load adjuster mounting tab can fracture under vibration, potentially allowing adjuster to contact rear tire.

Safety Hazard / Consequence

Contact between adjuster body and rear tire can cause tire damage, sudden loss of tire pressure, and loss of vehicle control.

Factory Remedy & Repair Action

Dealers install a reinforced retention bracket kit free of charge.

NHTSA #23V591000SUSPENSION:REAR:SHOCK ABSORBER

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NHTSA #18V734000POWER TRAIN:CLUTCH ASSEMBLY

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OEM Workshop Archives

Official Factory Service Bulletins & Field Updates

2 Documented Bulletins

Bulletin #HD-0181Safety Recall Bulletin 0181 & 0182 / NHTSA 23V-591: Softail Rear Shock Absorber Pre-Load Fastener Rear Tire Contact

Source: RCLRPT-23V591-6615.PDF

Mandated Torques:Torque: 12–15 N·m (106–133 in-lb) (Pre-load Adjuster Bracket Mounting Screw)Torque: 95–108 N·m (70–80 lb-ft) (Upper & Lower Shock Eye Mount Bolts)Torque: 136–149 N·m (100–110 lb-ft) (Rear Axle Cone Nut)

Consumable Specs:Loctite 243 Medium Strength Blue ThreadlockerIsopropyl Alcohol Surface Cleaner

Genuine Part Numbers:102008499150010454000142

Recalls 0181 & 0188 • NHTSA 23V-591 & 25V-375

Harley-Davidson Softail Mono-Shock Pre-Load Adjuster & Tire Clearance Architecture

Fast adjuster bracket reinforcement, tire clearance inspection (≥ 10 mm), and 95–108 N·m shock mounting torques.

Shock Mounting Bolts95–108 N·m (70–80 lb-ft)

Adjuster Bracket Screw12–15 N·m (106–133 in-lb)

Chemical ThreadlockerLoctite 243 (Medium Blue)

Dynamic Tire Clearance≥ 10.0 mm (0.39 in)

Bulletin #HD-TSB-21-04Technical Service Bulletin TSB-21-04: Fat Boy Solid Lakester Wheel Hub, 240mm Rear Tire & Pulley Torques

Source: H-D_TSB_21-04_Lakester_Hub.pdf

Mandated Torques:Torque: 75–88 N·m (55–65 lb-ft) + 45°–50° Turn (Rear Driven Pulley Bolts - Loctite 262 Red)Torque: 41–47 N·m (30–35 lb-ft) (Front & Rear Brake Rotor Torx Screws - Loctite 243 Blue)Torque: 136–149 N·m (100–110 lb-ft) (Rear Axle Cone Washer & Nut)Torque: 102 N·m (75 lb-ft) (Front Axle)Torque: 24–27 N·m (18–20 lb-ft) (Front Axle Pinch Bolts)

Consumable Specs:Loctite 262 High-Strength Red Threadlocker (Pulley Bolts)Loctite 243 Medium-Strength Blue Threadlocker (Rotor Screws)Anti-Seize Lubricant (Axle Shafts)

Genuine Part Numbers:410003913700021441500147

Fat Boy Icon • Lakester Solid Disc Driveline