Historical Context:
The Suzuki LT125 was a popular entry-level ATV in the mid-1980s, known for its reliability and ease of use, targeting recreational riders and beginners.
Competitors Era:
Competed with models like the Honda TRX125, Yamaha YFM125, and Kawasaki Bayou 110/185 during its production run.
Manual Value Proposition:
Provides professional-grade repair and maintenance information, enabling owners to perform tasks typically requiring a dealership service center, saving time and money.
Digital Advantage:
Instant download, cross-platform compatibility (Windows/MAC), unlimited use, and printability offer unparalleled convenience and long-term value.
Engine Systems:
Engine overhaul, carburetor tuning, ignition system, cooling system (if applicable, though likely air-cooled), lubrication system, exhaust system.
Drivetrain Systems:
Transmission overhaul, clutch operation, chain drive maintenance, differential (if applicable).
Chassis Systems:
Suspension (front and rear), steering system, frame inspection and repair, wheel bearings.
Braking Systems:
Brake caliper service, brake pad replacement, brake fluid flushing, drum brake adjustment (if applicable).
Electrical Systems:
Wiring diagrams, lighting system, battery maintenance, starter motor, ignition coil, CDI unit troubleshooting.
Bodywork And Trim:
Body panel removal and installation, seat, fenders, handlebar components.
Maintenance Procedures:
Routine servicing, oil changes, filter replacements, spark plug service, chain adjustments, lubrication points.
Repair Procedures:
Engine rebuild, transmission repair, suspension component replacement, brake system overhaul, electrical component diagnosis and repair.
Troubleshooting Guides:
Diagnostic flowcharts and procedures for identifying and resolving common mechanical and electrical issues.
Diagnostic Capability:
Advanced diagnostic information, including fault code interpretation (if applicable for the era) and component testing procedures.
Rebuild Level:
Full engine and transmission rebuild procedures with detailed disassembly and reassembly instructions.
Specifications Detail:
Precise torque specifications, clearances, fluid types, and capacities essential for accurate repairs.
Engine Type:
Air-cooled, four-stroke, single-cylinder (typically OHV)
Displacement:
Approximately 123cc (exact CC may vary slightly by specific model year variant, but generally known as a 125cc class)
Bore X Stroke:
Refer to manual for exact specifications (typical for this era would be around 52mm x 57mm, but precise data is crucial)
Horsepower Estimate:
Estimated 8-10 HP (typical for this engine size and era, manual will provide exact spec)
Torque Estimate:
Refer to manual for exact specifications (typically in the range of 6-8 lb-ft)
Carburetor Type:
Mikuni VM-series carburetor (common for Suzuki engines of this era, manual will specify model and jetting)
Fuel Type:
Unleaded gasoline
Ignition Type:
CDI (Capacitor Discharge Ignition)
Transmission Type:
5-speed manual transmission with semi-automatic clutch (often a centrifugal clutch or torque converter coupled with a manual shift lever)
Optional Transmission:
N/A (typically a single transmission option for this model)
Transmission Fluid Type:
Refer to manual for specific API classification and viscosity (e.g., SAE 10W-40 or SAE 80W-90 depending on gearbox design).
Overall Length:
Refer to manual for exact dimensions (typical for this class would be around 65-70 inches)
Overall Width:
Refer to manual for exact dimensions (typical for this class would be around 35-40 inches)
Overall Height:
Refer to manual for exact dimensions (typical for this class would be around 40-45 inches)
Dry Weight:
Refer to manual for exact specifications (likely in the 200-250 lb range)
Payload Capacity:
Refer to manual for specific weight limits.
Safety Standards:
ATV safety standards of the era, focusing on rider education and responsible use.
Braking System Type:
Drum brakes (front and rear) or potentially disc front/drum rear depending on exact year/trim. Manual will specify.
Lighting System:
Headlight, taillight, and brake light.
Chassis Design:
Stable frame and suspension geometry for its class.
Engine Oil Change Interval:
Refer to manual for specific hours or mileage (typically every 100-200 operating hours or annually).
Air Filter Cleaning Interval:
Refer to manual for specific intervals, frequent cleaning recommended in dusty conditions.
Spark Plug Service:
Refer to manual for replacement interval (e.g., every 200-400 operating hours or as needed).
Engine Oil Specification:
Refer to manual for exact viscosity (e.g., SAE 10W-40, SAE 20W-50) and API classification. Suzuki recommends specific motorcycle-grade oils.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid (confirm with manual for exact specification).
Common Wear Items:
Brake pads/shoes, spark plugs, air filters, drive chain and sprockets, wheel bearings, carburetor jets (clogging due to fuel varnish).
Carburetor Cleaning Frequency:
Due to the age of these units, regular carburetor cleaning and fuel system maintenance are critical for optimal performance.
Electrical Connections:
Corrosion on electrical connectors can be a common issue in older ATVs; the manual's wiring diagrams are essential for troubleshooting.
Suzuki Atv History:
Suzuki was an early pioneer in the ATV market, known for introducing innovative models like the LT125, contributing to the growth and popularity of the sport.
Lt125 Development:
The LT125 represented Suzuki's effort to capture the entry-level market, offering a balance of performance and affordability. It paved the way for subsequent, more powerful Suzuki ATV models.
Manufacturing Location:
Primarily manufactured in Japan by Suzuki Motor Corporation.
Model Awards:
While specific awards for the LT125 are not widely documented, its longevity and popularity in its class signify its success as a reliable recreational ATV.
Industry Perception:
Generally regarded as a durable and user-friendly ATV for its time.
Manual Certification:
Factory certified, ensuring accuracy and completeness for repair and maintenance.
