Target Audience:
KYMCO KXR 90 ATV owners and independent repair shops
Competitor Manuals:
Directly competes with official KYMCO service documentation for accessibility and completeness
Manual Features:
Detailed substeps, notes/cautions/warnings, numbered instructions, bold figure numbers, enlarged insets
Usability:
Numbered table of contents for quick information retrieval
Diagnostic Focus:
Emphasis on troubleshooting and electrical system repair with integrated wiring diagrams
Professional Grade:
Trusted by professional workshop technicians
Engine:
Full overhaul, tuning, component replacement, internal lubrication
Drivetrain:
Chain drive system, sprockets, lubrication, adjustment
Transmission Transaxle:
Component identification, lubrication, potential adjustments (as applicable)
Clutch:
Operation, adjustment, component inspection
Fuel System:
Carburetor assembly, fuel lines, fuel tank, filtration
Exhaust System:
Muffler, exhaust pipe, inspection, removal/installation
Suspension:
Front and rear suspension components, adjustment, inspection
Shocks:
Front and rear shock absorber inspection and potential service
Brake Systems:
Front and rear brake caliper service, brake fluid replacement, bleeding procedures, pad replacement
Steering:
Handlebar assembly, steering mechanism, tie rods, front wheel alignment
Body Frame Mounting:
Chassis inspection, body panel removal/installation, mounting hardware
Electrical Distribution:
Component identification, wiring harnesses, fuses, relays
Battery Charging Systems:
Battery maintenance, charging system testing, stator and regulator/rectifier function
Lighting Systems:
Headlight, taillight, brake light operation, bulb replacement
Instrumentation Warnings Systems:
Indicator lights, speedometer (if equipped), warning lamp diagnostics
Climate Control:
N/A (Not applicable to this ATV model)
Audio Systems:
N/A (Not typically equipped on this model)
Preventative Maintenance:
Fluid level checks, lubrication points, chain adjustment, filter replacement
Troubleshooting:
Systematic diagnostics for common issues, symptom-based troubleshooting
Repair Procedures:
Step-by-step instructions for component replacement and repair
Electrical Troubleshooting:
Detailed wiring diagrams, component testing, fault diagnosis
Assembly Disassembly:
Detailed procedures for removing and reinstalling major components and subassemblies
Depth:
Comprehensive (from basic maintenance to advanced repair)
User Level:
Suitable for both novice and experienced technicians
Engine Type:
Air-cooled, 4-stroke (presumed based on typical ATV configurations of this era)
Displacement:
Approximately 89cc (standard for a 90cc class ATV)
Bore X Stroke:
Specific dimensions to be found within the manual
Compression Ratio:
Specific ratio to be found within the manual
Horsepower:
Not explicitly stated, but typical for the class (e.g., 5-7 HP)
Torque:
Not explicitly stated, but typical for the class
Fuel Delivery:
Carburetor (likely a Keihin or similar, specific model in manual)
Carburetor Size:
Specific bore size of carburetor to be found within the manual
Fuel Type:
Unleaded gasoline
Oil Type:
Specific API classification (e.g., SG or higher) and viscosity grade (e.g., 10W-40) to be found within the manual
Oil Capacity:
Specific oil capacity in liters/quarts to be found within the manual
Length:
Not specified, but typical for youth ATVs (e.g., 50-60 inches)
Width:
Not specified, but typical for youth ATVs (e.g., 30-40 inches)
Height:
Not specified, but typical for youth ATVs (e.g., 30-40 inches)
Dry Weight:
Not specified, but likely in the 150-200 lb range
Curb Weight:
Not specified, but likely includes fluids and battery
Payload Capacity:
Not specified, but designed for youth rider
Oil Change Interval:
Typically every 100 hours or annually, refer to manual for exact schedule
Spark Plug Interval:
Intervals for inspection and replacement detailed in manual
Air Filter Maintenance:
Regular inspection and cleaning/replacement schedule provided in manual
Engine Oil Spec:
Refer to manual for specific viscosity grade and API classification (e.g., SAE 10W-40, API SG or higher)
Brake Fluid Spec:
DOT 3 or DOT 4 (refer to manual for exact specification)
Gear Oil Spec:
Specific type and viscosity for final drive/gearbox to be found within the manual
Common Problems:
Manual likely covers common issues such as carburetor gumming, chain wear, electrical connector corrosion, and brake pad wear.
General Torque:
Specific torque values for critical fasteners will be provided in the manual.
Kymco History:
KYMCO (Kwang Yang Motor Co., Ltd.) is a Taiwanese company, a major manufacturer of scooters, motorcycles, and ATVs. Known for value and reliability.
Kxr 90 Placement:
The KXR 90 is typically positioned as a youth-oriented ATV, designed for recreational use and introducing younger riders to the sport.
Production Years:
Specific production years covered by the manual are not stated, but it likely covers a range of common model years for the KXR 90.
