🏷️ Basic Information Identification Make: Kawasaki Model: KX125 & KX250 Product Type: Motorcycle Repair Manual Download Vendor: MyGreenManuals.com Codes Engine Type Kx125: 2-Stroke Engine Type Kx250: 2-Stroke Generation Model Years Covered: 2003, 2004, 2005 👋 Introduction Market Position Target Audience: Owners and mechanics of 2003-2005 Kawasaki KX125 and KX250 motorcycles. Value Proposition: Provides essential technical information for DIY repairs, maintenance, and troubleshooting, offering cost savings and convenience over physical manuals. Competitive Analysis Advantage Over Paper: Instant download, no shipping costs, portable on devices for on-trail repairs, environmentally friendly, protected against damage/loss. Key Features Accessibility: Immediate access post-payment, usable on smartphones, tablets, and computers. 📋 Manual Details Coverage Areas Primary Coverage: Repair, Maintenance, Troubleshooting Secondary Coverage: Parts Lookup, Routine Maintenance Page Count Estimated Pages: Extensive (specific count not provided, typical for full service manuals) Manual Type Type: Service Manual / Repair Manual / Owner's Manual / Parts Catalog (Comprehensive) Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine: Engine Removal and Installation, Engine Specifications, Fuel System, Lubrication and Cooling System, Intake & Exhaust Drivetrain: Transmission, Drive Chain & Sprockets Chassis Suspension: Steering System, Shocks Electrical: Electrical System Bodywork: Body Work General: General Information Procedures Included Maintenance: Routine Maintenance, Scheduled Maintenance Repair: Engine Repair, Transmission Repair, Suspension Repair, Electrical System Repair, Bodywork Repair Troubleshooting: Advanced Troubleshooting, Diagnostic Procedures Installation: Engine Removal and Installation Technical Depth Depth: Comprehensive: From basic checks and adjustments to full engine rebuilds and complex electrical diagnostics. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text within PDF Print Quality Print Quality: High-resolution for clear diagrams and text when printed Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Licensing Usage Rights: Lifetime Protection Policy (replacement if lost or damaged) ⚙️ Engine Specifications Primary Engine Engine Type Kx125: Liquid-cooled, 2-stroke single cylinder Engine Type Kx250: Liquid-cooled, 2-stroke single cylinder Performance Bore Stroke Kx125 Approx: 54.0 x 54.5 mm (Typical for this era KX125) Bore Stroke Kx250 Approx: 66.4 x 72.0 mm (Typical for this era KX250) Horsepower Kx125 Est: Approx. 35-40 HP (at crankshaft, depending on tuning) Horsepower Kx250 Est: Approx. 45-50 HP (at crankshaft, depending on tuning) Fuel System Carburetor Kx125: Keihin PWK38S (common for this model) Carburetor Kx250: Keihin PWK39 (common for this model) Fuel Type: Unleaded gasoline (premium recommended), Pre-mix oil (specified ratio) 🔧 Transmission Standard Transmission Type Kx125: 6-speed, constant mesh, return shift Transmission Type Kx250: 6-speed, constant mesh, return shift Optional Clutch Type: Wet, multi-disc, manual operation Features Drive Type: Chain Drive 📐 Dimensions Exterior Frame Type: Perimeter, high-tensile steel (typical for this era) Weights Dry Weight Kx125 Approx: 93 kg (205 lbs) Dry Weight Kx250 Approx: 102 kg (225 lbs) 🛡️ Safety Features Ratings Safety Focus: Designed for off-road competition; safety features primarily related to rider control and equipment integrity. Active Features Braking System: Disc brakes front and rear Suspension Damping: Adjustable front and rear suspension for optimal handling and stability. 💡 Technology Features Infotainment Features: N/A (Competition motocross bikes of this era typically do not feature infotainment systems). Driver Assistance Features: N/A (Focus is on rider input and mechanical systems). Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Frequency: Variable, dependent on usage (e.g., after specific operating hours or competitive events). Manual provides detailed guidelines. Air Filter Cleaning: Frequent cleaning recommended, especially in dusty conditions. Spark Plug Inspection: Regular inspection and replacement as needed based on performance. Fluid Specifications Engine Oil Type: Specific 2-stroke pre-mix oil recommended by Kawasaki (e.g., KAWASAKI KENDALL 2-CYCLE OIL or equivalent meeting API TC, JASO FD standards). Transmission Oil Type: SAE 10W-40 API GL-4 (or specified equivalent like KAWASAKI GEAR OIL) Coolant Type: Permanent type antifreeze (ethylene glycol base) mixed with distilled water in a 50/50 ratio. Known Issues Common Wear Items: Piston rings, clutch plates, chain and sprockets, wheel bearings, fork seals, spark plugs are common wear items requiring periodic replacement. Engine Tuning Sensitivity: Two-stroke engines can be sensitive to jetting and ignition timing, requiring precise adjustment for optimal performance and longevity. 📚 Vehicle History Brand Heritage Kawasaki Motocross: Kawasaki has a long and successful history in motocross racing with its KX line, renowned for performance and innovation. Model Evolution Kx125 Kx250 Evolution: These models represent a significant period in the development of 125cc and 250cc two-stroke motocross bikes, featuring advancements in engine technology (like KIPS - Kawasaki Integrated Power Valve System) and chassis design. Production Production Era: 2003-2005 models were part of the generation that continued the aggressive performance heritage of the KX series. 🏆 Awards & Recognition Recognitions Motocross Contributions: Kawasaki KX models have consistently been competitive in professional and amateur motocross, often praised for their power delivery and handling. Ratings Editorial Reviews Era: Contemporary reviews from magazines like Dirt Rider and Motocross Action often highlighted the strong performance and sharp...
Owners and mechanics of 2003-2005 Kawasaki KX125 and KX250 motorcycles.
Value Proposition:
Provides essential technical information for DIY repairs, maintenance, and troubleshooting, offering cost savings and convenience over physical manuals.
Competitive Analysis
Advantage Over Paper:
Instant download, no shipping costs, portable on devices for on-trail repairs, environmentally friendly, protected against damage/loss.
Key Features
Accessibility:
Immediate access post-payment, usable on smartphones, tablets, and computers.
📋 Manual Details
Coverage Areas
Primary Coverage:
Repair, Maintenance, Troubleshooting
Secondary Coverage:
Parts Lookup, Routine Maintenance
Page Count
Estimated Pages:
Extensive (specific count not provided, typical for full service manuals)
Manual Type
Type:
Service Manual / Repair Manual / Owner's Manual / Parts Catalog (Comprehensive)
Language
Language:
English
Format
Format:
Digital Download (PDF)
📖 Manual Coverage
Systems Covered
Engine:
Engine Removal and Installation, Engine Specifications, Fuel System, Lubrication and Cooling System, Intake & Exhaust
Perimeter, high-tensile steel (typical for this era)
Weights
Dry Weight Kx125 Approx:
93 kg (205 lbs)
Dry Weight Kx250 Approx:
102 kg (225 lbs)
🛡️ Safety Features
Ratings
Safety Focus:
Designed for off-road competition; safety features primarily related to rider control and equipment integrity.
Active Features
Braking System:
Disc brakes front and rear
Suspension Damping:
Adjustable front and rear suspension for optimal handling and stability.
💡 Technology Features
Infotainment
Features:
N/A (Competition motocross bikes of this era typically do not feature infotainment systems).
Driver Assistance
Features:
N/A (Focus is on rider input and mechanical systems).
Connectivity
Features:
N/A
🔧 Maintenance
Service Intervals
Oil Change Frequency:
Variable, dependent on usage (e.g., after specific operating hours or competitive events). Manual provides detailed guidelines.
Air Filter Cleaning:
Frequent cleaning recommended, especially in dusty conditions.
Spark Plug Inspection:
Regular inspection and replacement as needed based on performance.
Fluid Specifications
Engine Oil Type:
Specific 2-stroke pre-mix oil recommended by Kawasaki (e.g., KAWASAKI KENDALL 2-CYCLE OIL or equivalent meeting API TC, JASO FD standards).
Transmission Oil Type:
SAE 10W-40 API GL-4 (or specified equivalent like KAWASAKI GEAR OIL)
Coolant Type:
Permanent type antifreeze (ethylene glycol base) mixed with distilled water in a 50/50 ratio.
Known Issues
Common Wear Items:
Piston rings, clutch plates, chain and sprockets, wheel bearings, fork seals, spark plugs are common wear items requiring periodic replacement.
Engine Tuning Sensitivity:
Two-stroke engines can be sensitive to jetting and ignition timing, requiring precise adjustment for optimal performance and longevity.
📚 Vehicle History
Brand Heritage
Kawasaki Motocross:
Kawasaki has a long and successful history in motocross racing with its KX line, renowned for performance and innovation.
Model Evolution
Kx125 Kx250 Evolution:
These models represent a significant period in the development of 125cc and 250cc two-stroke motocross bikes, featuring advancements in engine technology (like KIPS - Kawasaki Integrated Power Valve System) and chassis design.
Production
Production Era:
2003-2005 models were part of the generation that continued the aggressive performance heritage of the KX series.
🏆 Awards & Recognition
Recognitions
Motocross Contributions:
Kawasaki KX models have consistently been competitive in professional and amateur motocross, often praised for their power delivery and handling.
Ratings
Editorial Reviews Era:
Contemporary reviews from magazines like Dirt Rider and Motocross Action often highlighted the strong performance and sharp handling of these KX models.
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