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Suzuki GSX-S 125 2018–2020 Service Repair Manual – PDF Download
Suzuki GSX-S 125 2018–2020 Service Repair Manual – PDF Download
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🛠️ Suzuki GSX-S 125 2018–2020 Service Repair Manual – PDF Download
🧰 OEM Factory Workshop Manual – Covers the Suzuki GSX-S 125 naked street motorcycle with 124cc EFI engine, ABS system, and 6-speed transmission
📲 Instant PDF Download – Compatible with Windows, macOS, iOS, Android, and Linux
🔧 Trusted by Suzuki dealerships and motorcycle repair professionals worldwide
🔍 Model Background
The Suzuki GSX-S125 (2018–2020) was a lightweight naked sportbike designed for urban riders, learners, and commuters seeking a mix of sporty styling, agile handling, and class-leading performance in the 125cc category. Built on the same platform as the GSX-R125, the GSX-S125 offered a more upright riding position and everyday comfort with aggressive streetfighter looks.
At its heart was a 124cc liquid-cooled DOHC 4-stroke single-cylinder engine tuned for responsive throttle, high revs, and best-in-class power-to-weight ratio. Mated to a 6-speed manual transmission, the GSX-S125 delivered quick acceleration and strong top-end performance for a learner-legal bike.
The chassis featured a lightweight steel frame, sporty suspension, and front disc brake with Bosch ABS for confident braking. With a wet weight of just 133 kg and a low seat height, it was highly maneuverable and beginner-friendly—perfect for city navigation or twisty backroads.
Produced from 2018 to 2020, the Suzuki GSX-S125 remains a top choice in the lightweight sport category for its sharp styling, impressive performance, and everyday rideability—offering big-bike attitude in a small-displacement package.
📆 Model Years Covered:
- Suzuki GSX-S 125 – 2018
- Suzuki GSX-S 125 – 2019
- Suzuki GSX-S 125 – 2020
📘 Manual Details:
- Model: GSX-S 125
- Engine: 124cc, 4-stroke, DOHC, single-cylinder, liquid-cooled
- Fuel System: Electronic Fuel Injection (EFI)
- Transmission: 6-speed constant mesh
- Brakes: Front and rear disc brakes with ABS (region dependent)
- Language: English
- Pages: 550+ with diagnostics, wiring diagrams, and service charts
📚 Manual Sections Include:
- General Information
- VIN decoding, model ID, special tools, torque specifications
- Scheduled Maintenance
- Oil and filter, spark plugs, valve clearance, coolant, chain adjustment
- Engine Repair
- Cylinder head, piston, crankshaft, camshaft, lubrication system
- EFI & Emissions
- Throttle body, injectors, fuel pump, PAIR system, EVAP, SDS-II diagnostics
- Transmission & Clutch
- Clutch inspection, gear shifting system, gearbox teardown
- Cooling & Exhaust
- Radiator, thermostat, water pump, muffler and catalytic system
- Suspension & Chassis
- Front forks, rear shock, frame geometry, swingarm maintenance
- Braking System
- ABS unit, calipers, brake pad replacement, master cylinder bleeding
- Electrical System
- Ignition, charging system, sensors, starter motor, lights, fuses
- Wiring Diagrams
- Factory schematics with labeled connectors and routing paths
💾 Format & Compatibility:
- File Format: PDF (Digital Download)
- Searchable & Bookmarked: ✅ Yes
- Printable: ✅ Yes – Entire manual or selected chapters
- Compatible With: Phones, tablets, laptops, desktops
🔍 Keywords:
Suzuki GSX-S 125 service manual PDF, 2018–2020 motorcycle repair guide, 124cc engine rebuild, EFI diagnostics, ABS troubleshooting, clutch service, wiring diagrams
❓ Mini FAQ:
Q: Is this the factory service manual for the GSX-S 125?
A: Yes – this is the official OEM repair manual used by Suzuki-authorized workshops and dealerships.
Q: Does it include electronic diagnostics and valve service?
A: Absolutely – covers EFI diagnostics, SDS-II scanning, valve clearance, and electrical schematics.
Q: Can I use it on a mobile phone or tablet?
A: Yes – the PDF format is fully compatible with all modern devices.
🧭 Helpful Resources for Suzuki Motorcycle Owners
- Why Every Motorcycle Owner Should Own a Service Manual – Find out how a downloadable repair manual can simplify maintenance and help you troubleshoot common problems on your own.
- Motorcycle Troubleshooter – Not sure what’s wrong with your Suzuki motorcycle? Our free tool lists common issues and DIY fixes across all major motorcycle brands.
🔧 Browse More Suzuki Motorcycle Manuals
Note: While our manuals are designed for DIY use, they do not replace professional mechanical training. If you're unsure about a repair or your motorcycle shows serious issues, we strongly recommend visiting a certified mechanic. These guides are best suited for owners with basic to moderate mechanical experience.
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