To make it easier for you to choose the right manual, we have compiled various information for you below, such as model designations, types, and production years.
The following models are included in this manual: KDX 125 SR / Kawasaki Heavy Industries Motorcycle & Engine Company
1990 Kawasaki KDX125SR
Engine: 124.0 cc (7.57 cubic inches), Single cylinder, two-stroke, 37.8 HP (27.6 kW) @ 11500 RPM, 24.5 Nm (2.5 kgf-m or 18.1 ft.lbs) @ 10500 RPM, 8.2:1, CDI, 56.0 x 50.6 mm (2.2 x 2.0 inches), Petrol Mix (32:1)
Production year(s): 1990
Manual Language: English
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"Download the Manual for Servicing Your 1990 Kawasaki KDX125SR Two-Stroke Engine Motocross Motorbike"
If you're the proud owner of a 1990 Kawasaki KDX125SR two-stroke engine motocross motorbike, it's essential to have access to the right resources for maintenance and repairs. To assist you in keeping your bike in top-notch condition, we've created a comprehensive manual that covers all the technical specifications, maintenance tips, common issues, tuning options, available accessories, and more. Whether you're a seasoned rider or a newcomer to the motocross world, this manual will provide you with valuable insights and information to enhance your riding experience. Read on to discover the specifications, facts, maintenance advice, and additional details about the 1990 Kawasaki KDX125SR.
Technical Specifications:
• Engine Type: Liquid-cooled, two-stroke, single-cylinder
• Displacement: 124 cc
• Bore x Stroke: 56.0 x 50.6 mm
• Compression Ratio: 7.2:1
• Carburetion: Mikuni VM28SS
• Ignition: CDI
• Transmission: 6-speed, constant mesh
• Final Drive: Chain
• Front Suspension: Telescopic forks
• Rear Suspension: Uni-Trak single shock
• Front Tire: 80/100-21
• Rear Tire: 100/100-18
• Front Brake: Hydraulic disc
• Rear Brake: Drum
• Fuel Capacity: 7 liters
• Dry Weight: 94 kg
• Seat Height: 920 mm
• Wheelbase: 1,400 mm
• Ground Clearance: 320 mm
• Frame: Steel, perimeter design
• Exhaust: Expansion chamber with a muffler
Facts and Details:
- The KDX125SR was designed as a versatile off-road bike suitable for both beginners and experienced riders.
- It featured a powerful two-stroke engine known for its punchy acceleration and lightweight design.
- The liquid-cooling system ensured optimal engine temperature even during intense riding sessions.
- The bike's Uni-Trak rear suspension provided excellent shock absorption and enhanced handling.
- Its compact size and lightweight construction made it highly maneuverable on various terrains.
- The telescopic front forks offered reliable suspension travel for improved comfort and control.
- The KDX125SR's 6-speed transmission allowed riders to tackle different riding conditions with ease.
- Its hydraulic disc front brake delivered strong stopping power, ensuring safety during rapid deceleration.
- The bike's steel perimeter frame provided durability and rigidity while maintaining a lightweight profile.
- Riders appreciated the KDX125SR's ergonomic design, which offered a comfortable riding position.
- The bike's expansion chamber exhaust system contributed to its distinctive sound and increased power.
- The KDX125SR's bold graphics and vibrant color options added to its visual appeal.
Maintenance Intervals, General Maintenance Tips, and Common Issues:
* Regularly change the engine oil and filter every 10-15 hours of riding.
* Clean and oil the air filter after each ride to maintain optimal engine performance.
* Inspect and adjust the chain tension frequently to prevent excessive wear.
* Lubricate the control cables and pivot points to ensure smooth operation.
* Check the tire pressure before every ride for optimal traction and handling.
* Keep an eye on the coolant level and ensure it is topped up as needed.
* Common issues may include fouled spark plugs, clogged carburetor jets, and worn-out clutch plates.
* To resolve these issues, clean or replace the spark plugs, clean the carburetor, and inspect the clutch plates for wear.
Popular Tuning Tips or Modifications:
+ Install an aftermarket expansion chamber for improved power delivery.
+ Upgrade the carburetor for better throttle response and fuel efficiency.
+ Fit a high-performance air filter to enhance airflow and increase horsepower.
+ Install a stiffer rear shock spring for improved suspension performance.
+ Replace the stock sprockets for different gear ratios tailored to your riding style.
Available Accessories and Aftermarket Options:
Performance exhaust systems
Suspension upgrade kits
High-flow air filters
Handlebar grips and handguards
Skid plates and frame protectors
Graphics and decal kits
Upgraded brake pads and discs
Owner Reviews and Opinions:
Strengths:
Excellent power-to-weight ratio
Agile handling and maneuverability
Durable construction and build quality
Versatile off-road performance
Easy maintenance and serviceability
Weaknesses:
Limited top-end speed compared to larger displacement bikes
Drum rear brake lacks stopping power in certain conditions
Most Frequently Required Repairs:
■ Carburetor cleaning and adjustment
■ Clutch plate replacement
■ Spark plug replacement
■ Chain and sprocket replacement
■ Suspension rebuild or adjustment
Access the detailed shop handbook in PDF format by using PayPal to get the comprehensive service manual for your Kawasaki KDX125SR. Upon completion of your PayPal payment, the checkout page will display your official Kawasaki OEM shop manual/parts catalog download link. Additionally, we will promptly email you the payment and download information for your convenience.
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