Market Segment:
Off-road/Enduro motorcycles, known for their robust performance in challenging terrains.
Competitors 2006:
KTM EXC series, Husqvarna WR series, Beta RR series, Yamaha WR series, Honda CRF-X series.
Off Road Focus:
Designed for extreme off-road riding, competition, and trail exploration.
Handling:
Known for agile handling characteristics, making them suitable for technical trails and enduro racing.
User Friendliness:
Written for both DIY enthusiasts and experienced mechanics, featuring step-by-step instructions.
Visual Aids:
Contains top-quality diagrams, exploded views, and detailed pictures.
Coverage:
Complete factory service and repair for all EC 200, EC 250, EC 300 models.
Page Count:
Not specified, but described as 'complete'.
Manual Type:
Service Repair Workshop Manual
Detail Level:
Factory-level detail, intended for professional technicians and serious enthusiasts.
Software Recommendation:
Adobe PDF Reader recommended for optimal viewing of images and graphics.
Engine:
Comprehensive coverage of engine disassembly, assembly, troubleshooting, and tuning for all specified engine variants.
Transmission:
Detailed procedures for transmission maintenance, repair, and overhaul.
Chassis:
Covers suspension, steering, frame, and related components.
Brakes:
Maintenance and repair procedures for both front and rear braking systems.
Electrical System:
Wiring diagrams, troubleshooting, and repair of electrical components.
Fuel System:
Carburetor servicing, fuel tank, and lines for all engine variants.
Cooling System:
Inspection of radiator, hoses, water pump, and thermostat (if applicable).
Exhaust System:
Details on exhaust pipes, mufflers, and their maintenance.
Wheels And Tires:
Information on wheel bearing service, tire mounting, and balancing.
Frame And Suspension:
Detailed disassembly, inspection, and service for the frame, front forks (e.g., Marzocchi or Paioli), and rear shock absorber (e.g., Olle or Sachs).
Clutch System:
Detailed procedures for clutch master cylinder, slave cylinder, and clutch pack service.
Maintenance:
Scheduled maintenance, lubrication, and routine checks.
Troubleshooting:
Diagnostic procedures for common and complex issues.
Repair:
Step-by-step repair instructions for all major motorcycle components.
Rebuild:
Complete engine and transmission rebuild procedures.
Disassembly Assembly:
Detailed instructions for complete disassembly and reassembly.
Torque Specifications:
Includes critical torque values for fasteners across all systems to ensure correct assembly.
Depth:
Comprehensive from basic maintenance to complete engine rebuilds and advanced diagnostics.
Diagnostic Capabilities:
Includes troubleshooting guides and symptom-based diagnostics for engine, electrical, and mechanical issues.
Engine Type:
2-stroke, single-cylinder, liquid-cooled.
Engine Description:
Liquid-cooled, 2-stroke engines with reed valve induction and a power valve system for improved low-to-mid-range torque.
Ec 200 Displacement:
Approximately 193cc
Ec 250 Displacement:
Approximately 249cc
Ec 300 Displacement:
Approximately 294cc
Bore Stroke Typical:
Varies by model, typically around 64x58mm (EC250), 72x72mm (EC300).
Horsepower Range Estimated:
EC200: ~35-40 HP, EC250: ~40-45 HP, EC300: ~45-50 HP (approximate and can vary with tuning).
Power Delivery:
Characteristic strong mid-range and top-end power typical of 2-stroke enduro bikes.
Carburetor Type:
Typically Dell'Orto VHSH/VHSB or Keihin carburetors, size varies by model (e.g., 34mm-38mm).
Fuel Type:
Unleaded gasoline with appropriate 2-stroke oil mixture.
Ignition System:
Digital CDI ignition.
Premix Ratio:
Manual specifies recommended 2-stroke oil mix ratio (typically 50:1 or 60:1).
Braking System Front:
Hydraulic disc brakes, typically with Nissin or similar calipers.
Braking System Rear:
Hydraulic disc brakes, typically with Nissin or similar calipers.
Lighting:
Headlight, taillight, brake light (DOT/ECE compliant versions may vary).
Spark Plug Replacement Interval:
Check/clean every 20-30 hours, replace as needed (refer to manual for specific type).
Air Filter Cleaning Interval:
Recommended after every few rides, or more frequently in dusty conditions.
Oil Change Transmission:
Typically every 15-25 hours of riding, depending on usage.
Chain And Sprocket Inspection:
Inspect and lubricate chain regularly (every 500-1000 km or more frequently if off-roading).
Transmission Oil Type:
Manual specifies recommended gearbox oil (e.g., SAE 75W/80W or 10W/40 motorcycle specific).
Coolant Type:
Ethylene glycol-based antifreeze and distilled water mixture (typically 50/50).
Brake Fluid Type:
DOT 4 recommended for hydraulic brake systems.
Fork Oil Type:
Manual specifies appropriate fork oil viscosity (e.g., SAE 5W or 10W).
Common Wear Items:
Clutch plates, piston rings, spark plugs, chain, sprockets, wheel bearings, and suspension seals due to demanding off-road use.
Carburetor Tuning:
Sensitivity to altitude and temperature changes, often requiring jetting adjustments.
Suspension Maintenance:
Regular fork oil changes and seal inspections are crucial for optimal performance.
Brand Reputation:
GAS GAS is well-regarded in the enduro and extreme enduro communities for its capable and durable machines.
Off Road Performance Ratings:
Consistently reviewed positively for handling, engine power delivery, and suspension performance in challenging terrains.