2009 Derbi GPR 125 4-Stroke Workshop Manual – Complete Service & Repair PDF
Original price was: $24.95.$14.95Current price is: $14.95.
Complete factory-style workshop manual for the 2009 Derbi GPR 125 4-stroke, covering full engine rebuild, chassis, fuel, electrical and torque specs. Instant PDF download.
Description
2009 Derbi GPR 125 4-Stroke Workshop Manual – Complete Service & Repair PDF
This 2009 Derbi GPR 125 4-Stroke Workshop Manual is the full 247-page service publication produced by Nacional Motor, S.A.U. for DERBI dealer and sub-agency workshops working on the GPR 125 4T. It is written for anyone with a basic grounding in mechanics who needs correct, step-by-step procedures for installation, extraction, dismantling, assembly, repair and checking of every major system on this single-cylinder, liquid-cooled machine.
- Manual type: Factory-style workshop/service manual
- Brand/Model: Derbi GPR 125 4-stroke (GPR 125 4T)
- Language: English
- Page count: 247 pages
- File format: Digital PDF download
- Publisher: Nacional Motor, S.A.U.
- Copyright date: 2009
Chapters Covered in this GPR 125 4-Stroke Workshop Manual
- General Information
- Safety Regulations
- Maintenance Regulations
- Special Tools for the Engine
- Special Tools – Chassis
- Technical Data
- Tightening Torques
- PDI (Pre-Delivery Inspection)
- Maintenance
- Location of Elements
- Removing Bodywork Elements
- Periodical Maintenance Table
- Lubrication Points
- Inspection and Maintenance
- Maintenance Pieces
- Engine
- Identification of Sets
- Removing the Engine from the Frame
- Dismantling the Engine
- Inspecting the Engine Elements
- Assembling the Engine
- Fitting the Engine into the Frame
- Fuel Supply System
- Dismantling the Carburettor
- Assembling the Carburettor
- Checking Level of the Float Chamber
- Checking the Vacuum Valve and Tapered Needle
- Checking the Automatic Choke
- Cooling System
- Diagram of the System
- Description of the System and Checking of Elements
- Renewing the Water Pump Oil Seal
- Lubrication System
- Diagram of the System
- Description of the Lubrication System
- Chassis
- Inspecting the Wheels
- Front Wheel
- Front Suspension
- Rear Wheel
- Rear Suspension
- Braking System
- Front Brake
- Rear Brake
- Electrical System
- General Indications
- Locating Electrical Components
- Wiring Diagram
- Charging System
- Ignition System
- Starter Motor System
- Instrument Panel
- Lighting and Indicating
- Fitting New Components
- Inspecting the Battery and Fuses
Taken together, this workshop manual takes a technician from initial inspection all the way through a complete engine-out rebuild, carburettor service, cooling and lubrication system work, chassis and brake maintenance, and full electrical diagnosis – all organized step by step exactly as Derbi’s own workshops used it.
Technical Data at a Glance
The GPR 125 4T is fitted with a single-cylinder, 4-stroke, 4-valve, DOHC engine of 124.2 cm³ (58 mm x 47 mm bore/stroke), rated at 15 HP at 9,250 rpm, with a 12:1 compression ratio, liquid cooling and a 6-speed manual gearbox driving a chain final transmission. This 2009 Derbi GPR 125 workshop manual documents the exact factory tolerances behind that spec sheet – piston and cylinder diameters by size category, valve clearances, camshaft warp limits, crankshaft and connecting rod play, clutch disk thickness, and Keihin CVK30 carburettor jetting – along with a full torque chart for both standard fasteners and every major engine fixing (cylinder head, crankshaft sprocket, timing sprockets, clutch bell housing and more).
IMAGES PREVIEW
Electrical and Chassis Detail
The electrical system section includes the complete wiring diagram for the GPR 125 4T, charging and ignition system resistance values, spark plug gap, ignition timing advance by rpm, and fuse and bulb ratings. Chassis chapters cover the 41 mm inverted front forks and single rear shock absorber, front and rear brake disk thickness and wear limits, and wheel and tyre specifications for the 100/80×17 front and 130/70×17 rear Pirelli-fitted wheels.
Why This Manual Matters for Your GPR 125
With this Derbi GPR 125 4-stroke workshop manual on hand, you can diagnose and correct faults using the manufacturer’s own procedures and tolerances rather than guesswork – protecting the engine, cooling system and electrical components from damage caused by incorrect clearances or torque values. Whether you’re doing routine periodical maintenance, a full engine rebuild, carburettor rebuild, or chasing down an electrical fault, this workshop manual gives you the reference the original Derbi workshops relied on. It downloads instantly as a PDF after purchase, works on any phone, tablet, laptop or desktop, and can be printed at home for garage use – no shipping wait, no missing pages.
Reviews
There are no reviews yet.