Segment:
Sport ATV / Utility ATV (entry-level to mid-range)
Competitors 2004 2005:
Suzuki LT-Z250 Quadsport, Yamaha Blaster 200, Honda TRX250EX, Kawasaki Bayou 250
Vehicle Focus:
Lightweight, agile, versatile for recreational trail riding and light utility tasks
Manual Advantage:
Empowers owners to perform maintenance and repairs, saving significant costs compared to professional service.
Manual Accessibility:
Instantly delivered via email and accessible on multiple devices (PC, Mac, tablet, smartphone).
Engine:
Complete overhaul, tuning, lubrication, cooling system, fuel system, exhaust system
Transmission:
Clutch, gearbox, drive shafts, lubrication
Chassis Frame:
Frame inspection, repair, suspension components (front and rear), steering system
Brakes:
Hydraulic systems, caliper service, disc replacement, fluid bleeding, parking brake
Electrical System:
Ignition system, lighting, battery, starter, charging system, wiring diagrams
Bodywork:
Body panels, fenders, seat, storage compartments, graphics
Wheels Tires:
Tire inspection, replacement, wheel mounting, balancing
Troubleshooting:
Diagnostic procedures for common issues
Estimated Pages:
Estimated 300-600 pages (typical for a complete workshop manual of this era and scope)
Type:
Complete Workshop Service Repair Manual
Language:
English (implied by product description and target market)
Powertrain:
Engine, transmission, drivetrain (chain/belt drive, rear axle)
Suspension Steering:
Front A-arm suspension, rear swingarm or independent suspension, steering column, tie rods
Braking System:
Front and rear hydraulic disc brakes, master cylinders, brake lines, calipers
Fuel System:
Carburetor (likely), fuel tank, fuel lines, petcock
Ignition System:
CDI unit, spark plug, ignition coil, stator
Cooling System:
Air-cooled or liquid-cooled (depending on specific K2 250 variant, likely air-cooled), radiator, fan (if liquid-cooled)
Exhaust System:
Exhaust pipe, muffler, heat shields
Scheduled Maintenance:
Oil changes, filter replacements, chain/belt adjustment, spark plug checks, valve clearance adjustment (if applicable)
Engine Rebuild:
Piston, cylinder, crankshaft, camshaft (if 4-stroke), gasket replacement, seal replacement
Transmission Repair:
Gearbox disassembly and assembly, clutch inspection and replacement, bearing service
Suspension Adjustment:
Shock absorber settings, linkage lubrication, steering alignment
Brake Service:
Pad replacement, caliper overhaul, line flushing, bleeding procedures
Electrical Diagnostics:
Troubleshooting electrical faults using wiring diagrams, component testing
Carburetor Tuning:
Adjustment of idle speed, mixture, jetting recommendations
Body Panel Removal:
Instructions for accessing components by removing fairings and bodywork
Depth:
Comprehensive (A-Z) covering basic maintenance to full engine and transmission rebuilds
Diagnostic Level:
Advanced diagnostic procedures and troubleshooting guides
Rebuild Instructions:
Detailed step-by-step instructions with torque specifications for component reassembly
Format:
PDF (Portable Document Format)
Searchability:
Likely searchable text-based PDF for easy information retrieval
Quality:
High quality, suitable for printing individual pages or the entire manual
Binding:
N/A (Digital download - user can print and bind as desired)
Paper Type:
N/A (Digital download - user can choose paper type for printing)
Configuration:
Likely a 250cc, single-cylinder, 4-stroke engine (common for this class, though 2-stroke is also a possibility for some Gas Gas models of this era. Specifics depend on the exact K2 250 variant.)
Bore Stroke:
Requires specific model VIN or engine code for precise data, but typically around 68-72mm bore x 65-70mm stroke for 250cc class.
Compression Ratio:
Typically between 9.5:1 to 11.0:1, depending on engine design.
Horsepower:
Estimated 15-20 HP at peak RPM (dependent on final tune and engine type).
Torque:
Estimated 15-20 Nm (dependent on final tune and engine type).
Fuel Delivery:
Carburetor (e.g., Keihin CVK or similar)
Carburetor Size:
Likely 30-34mm bore carburetor.
Ignition Type:
CDI (Capacitor Discharge Ignition)
Oil Type:
API SG or higher, SAE 10W-40 motorcycle specific oil (verify with manual).
Oil Capacity:
Approximately 1.5-2.0 liters (including filter replacement, exact value in manual).
Type:
Automatic CVT (Continuously Variable Transmission) with Reverse
Transmission Options:
Not applicable for this model, CVT was standard.
Drive System:
2WD (Two-Wheel Drive) or 4WD (Four-Wheel Drive) - likely 2WD for a 250cc sport/utility model, but needs confirmation.
Final Drive:
O-ring sealed chain drive
Fluid Type:
Specific CVT fluid or gear oil (refer to manual for exact type and viscosity, often SAE 80W-90 for final drive if separate).
Length:
Estimated 70-75 inches (1778-1905 mm) - based on typical models of the era.
Width:
Estimated 45-50 inches (1143-1270 mm) - based on typical models of the era.
Height:
Estimated 40-45 inches (1016-1143 mm) - based on typical models of the era.
Dry Weight:
Estimated 400-450 lbs (181-204 kg) - based on typical models of the era.
Ground Clearance:
Estimated 7-9 inches (178-229 mm) - based on typical models of the era.
Towing Capacity:
Typically not rated for towing on sport-oriented ATVs, but may have a rear rack capacity of 20-50 lbs (9-23 kg).
Front Tire Size:
Commonly 21x7-10 or 22x7-10
Rear Tire Size:
Commonly 20x10-9 or 22x10-10
Wheel Bolt Pattern:
Likely 4x110mm or 4x115mm for rear, 4x110mm for front.
Crash Test Results:
N/A - ATVs are not typically subject to automotive crash test ratings.
Braking:
Hydraulic disc brakes front and rear, parking brake mechanism.
Throttle Limiter:
May have a throttle limiter screw for beginners.
Operator Presence:
Handlebar-mounted kill switch, safety lanyard (optional on some models).
Lighting:
Headlights, taillight/brake light, offering visibility.
Protective Gear:
Helmet, goggles, gloves, boots, long pants, long-sleeved shirt recommended.
Infotainment System:
Basic instrumentation: Speedometer, odometer, neutral indicator, potentially oil pressure or engine temperature warning lights.
Assistance Features:
None typical for this model year and class, focus is on mechanical function and handling.
Connectivity Options:
N/A
Engine Oil Change:
Every 100-200 hours of operation or annually (verify in manual).
Air Filter Cleaning:
Every 20-40 hours of operation, or more frequently in dusty conditions.
Spark Plug Inspection:
Every 100-200 hours of operation, or annually.
Chain Lubrication Adjustment:
Every 10-20 hours of operation, or after washing/riding in wet conditions.
Brake Fluid Flush:
Every 1-2 years, or as recommended by fluid manufacturer.
Engine Oil:
SAE 10W-40, API SG or higher, JASO MA certified motorcycle oil.
Brake Fluid:
DOT 3 or DOT 4 (check manual for specific recommendation).
Gear Oil Final Drive:
SAE 80W-90 Hypoid Gear Oil (if separate from CVT).
Common Wear Items:
Brake pads, tires, chain and sprockets, wheel bearings, suspension bushings.
Potential Electrical Faults:
Issues with stator, CDI, or voltage regulator due to vibration and exposure.
Carburetor Fouling:
Can occur with infrequent use or poor fuel quality, leading to starting issues or rough running.
Suspension Leaks:
Shock absorbers can develop leaks over time and with hard use.
Brand Origin:
Gas Gas is a Spanish manufacturer known for off-road motorcycles, particularly trials and enduro bikes. Their entry into the ATV market was a diversification effort.
K2 Lineage:
The K2 model was part of Gas Gas's ATV lineup, often sharing components or design philosophies with their motorcycle range, emphasizing performance and agility.
Manufacturing Location:
Likely manufactured in Spain by Gas Gas.
Production Period:
Early to mid-2000s, specifically covering the 2004 and 2005 model years as indicated.
