Target Audience:
DIY enthusiasts, home mechanics, and professional technicians working on the Suzuki GS250 FWS.
Value Proposition:
Provides a highly complete and detailed resource for servicing and repairing the GS250 FWS, offering significant cost savings over dealership services.
Completeness:
Described as the most complete service manual compiled, covering all aspects of the motorcycle's maintenance and repair.
Instruction Quality:
Features high-quality diagrams and step-by-step instructions.
Download Benefit:
Instant download saves time and money on shipping and packaging.
Scope:
Comprehensive service, repair, and maintenance for the 1985-1990 Suzuki GS250 FWS motorcycle.
Estimated Pages:
High-quality diagrams and instructions suggest a detailed manual, likely exceeding 300 pages.
Type:
Service and Repair Manual
Format:
Digital Download (PDF)
Engine:
Disassembly, inspection, adjustment, and servicing of engine components, including cylinder head, pistons, crankshaft, lubrication system, and cooling system.
Fuel System:
Carburetor servicing and adjustment, fuel tank inspection, fuel pump operation, and fuel lines.
Electrical System:
Ignition system diagnostics and repair, lighting circuits, charging system (alternator, rectifier/regulator), starter motor, battery maintenance, and wiring diagrams.
Drivetrain:
Clutch inspection and adjustment, transmission disassembly and reassembly, gear shifting mechanisms, and final drive (chain and sprockets).
Suspension:
Front fork disassembly, servicing, and adjustment; rear shock absorber inspection and replacement.
Brakes:
Front and rear brake system inspection, adjustment, caliper servicing, master cylinder maintenance, and bleeding procedures.
Chassis And Bodywork:
Frame inspection, steering system maintenance, wheel bearing service, and body panel removal/installation.
Routine Maintenance:
Oil changes, filter replacements, spark plug inspection/replacement, air filter cleaning, chain lubrication and adjustment, tire pressure checks.
Troubleshooting:
Diagnosis of common problems related to engine performance, electrical systems, and other motorcycle functions.
Major Repairs:
Engine rebuilds, transmission overhauls, suspension overhauls, carburetor rebuilding, and electrical component replacement.
Adjustments:
Valve clearance adjustment, carburetor synchronization, clutch and brake lever adjustments, idle speed adjustment.
Depth:
Comprehensive, covering everything from basic inspections and adjustments to complete disassembly, repair, and reassembly of all major motorcycle systems.
Compatibility:
All versions of Windows & Mac
Requirements:
Adobe PDF Reader
Printability:
All pages are printable, allowing for physical reference.
Binding:
Not Applicable (Digital Download)
Paper:
Not Applicable (Digital Download)
Engine Type:
Air-cooled, 4-stroke, DOHC, parallel-twin
Displacement:
248 cc (approximate)
Bore X Stroke:
Specifications would be detailed in the manual (typical for this era, around 54mm x 54mm).
Compression Ratio:
Specifications would be detailed in the manual (typically around 9.2:1 to 9.5:1).
Cooling System:
Air-cooled
Horsepower:
Specifications would be detailed in the manual (typically in the 25-30 HP range).
Torque:
Specifications would be detailed in the manual (typically around 20-23 Nm).
Carburetion:
Dual Mikuni carburetors (likely VM series or similar), specific models detailed in manual.
Fuel Type:
Unleaded gasoline, octane rating as specified in the manual (likely 91 RON or higher).
Oil Type:
Engine oil specifications (e.g., 10W-40, API SG or higher) would be detailed.
Oil Capacity:
Oil capacity for engine oil change and with filter change would be specified in the manual.
Length:
Specifications not provided, detailed in manual.
Width:
Specifications not provided, detailed in manual.
Height:
Specifications not provided, detailed in manual.
Dry Weight:
Specifications not provided, detailed in manual (likely around 140-150 kg).
Wet Weight:
Specifications not provided, detailed in manual.
Fuel Tank Capacity:
Specifications not provided, detailed in manual (typical for this class, around 14-17 liters).
Safety Standards:
Adheres to applicable motorcycle safety standards of the era. Specific ratings not applicable in the same way as cars.
Braking System:
Front disc brake, rear drum brake (common for the era). Specific caliper and rotor details in manual.
Lighting:
Headlight, tail light, brake light, turn signals. Wiring diagrams in manual.
Frame Construction:
Steel tube frame, details on inspection and repair in manual.
Oil Change Interval:
Detailed in the manual (typically every 3,000-5,000 km or 6 months).
Valve Clearance Interval:
Detailed in the manual (often around 6,000-10,000 km).
Spark Plug Replacement:
Detailed in the manual (typically every 10,000-15,000 km).
Engine Oil Viscosity:
Recommended viscosity grade (e.g., 10W-40) and API service classification will be specified.
Brake Fluid Type:
Specified brake fluid type (e.g., DOT 3 or DOT 4) will be detailed.
Coolant Type:
If liquid-cooled (which this model is not, it's air-cooled), the coolant type would be specified.
Carburetor Wear:
Common to older motorcycles, carburetor diaphragms and jets can wear, leading to rough idling or poor performance. Manual covers servicing.
Electrical Gremlins:
Age-related issues with wiring insulation, connectors, and charging system components can occur. Manual provides troubleshooting.
Suspension Seals:
Front fork seals can degrade over time, leading to leaks. Manual details fork seal replacement.
Exhaust System Corrosion:
Rust and corrosion can affect the exhaust system. Manual covers inspection and potential repair/replacement.
Suzuki Legacy:
Suzuki has a long-standing reputation for producing reliable and sporty motorcycles, known for their innovation in engine technology and design.
Gs Series:
The GS series represented Suzuki's robust line of sporty street motorcycles, often featuring parallel-twin engines that offered a good balance of performance and refinement.
Gs250Fws Positioning:
The GS250 FWS was positioned as a versatile and approachable sportbike, suitable for commuting, touring, and spirited riding, appealing to a broad range of riders.
Manufacturing Era:
Produced during the mid-to-late 1980s, a period of significant evolution in motorcycle design and technology.
Model Awards:
Specific awards for the GS250 FWS are not readily available, but the GS series was generally well-regarded for its performance and value in its era.
Consumer Reviews:
General consumer reception of the GS series was positive, highlighting reliability and sporty handling. Specific reviews would require historical automotive press research.
Manufacturing Standards:
Manufactured to Suzuki's internal quality control and Japanese industry standards of the period.
