Target Audience:
Entry-level youth ATV riders and their parents/guardians responsible for maintenance and repair.
Key Competitors:
Honda TRX90X, Yamaha YFM90R, Polaris Sportsman 90.
Vehicle Focus:
Designed for young riders, emphasizing ease of use, safety features, and reliable performance.
Manual Value Proposition:
Empowers owners and technicians with the precise information needed for proper upkeep and repair, reducing reliance on dealerships for routine tasks and diagnostics.
Engine Mechanical:
Complete engine teardown, inspection, repair, and reassembly including cylinder, piston, crankshaft, camshaft, valve train, and lubrication system.
Fuel System:
Carburetor (keihin), fuel tank, fuel lines, fuel filter maintenance, adjustment, and troubleshooting.
Ignition System:
CDI ignition system, spark plug, ignition coil, timing inspection and adjustment.
Drive Train:
Automatic centrifugal clutch, CVT transmission operation, gear reduction, chain drive lubrication and adjustment.
Electrical System:
Wiring diagrams, battery, starter motor, lighting system, charging system (stator), and troubleshooting.
Suspension:
Front and rear suspension components, shock absorbers, spring replacement, and geometry adjustments.
Braking System:
Front and rear drum brake systems, brake shoe replacement, cable adjustment, and hydraulic system (if applicable).
Steering System:
Handlebar, steering column, tie rods, and steering knuckles inspection and adjustment.
Frame And Bodywork:
Chassis components, body panel removal and installation, seat, fenders, and protective guards.
Routine Maintenance:
Oil changes, filter replacement, spark plug inspection, chain lubrication, tire pressure checks, and general inspection procedures.
Troubleshooting:
Diagnostic charts and procedures for common starting issues, performance problems, and system malfunctions.
Repair Procedures:
Step-by-step instructions for disassembly, component replacement, and reassembly for all major systems.
Specifications And Tolerances:
Detailed technical specifications, torque values, clearances, and measurement tolerances for critical components.
Wiring Diagrams:
Complete, easy-to-read electrical wiring schematics for all model years covered.
Depth:
Comprehensive factory-level detail suitable for both novice mechanics and experienced technicians.
Engine Type:
Four-stroke, SOHC, Air-cooled
Bore X Stroke:
39.0 mm x 41.5 mm
Horsepower Approximate:
3.1 HP @ 7,000 rpm (subject to regional regulations)
Torque Approximate:
3.2 Nm @ 5,000 rpm (subject to regional regulations)
Fuel Delivery:
Keihin VM10/1 carburetor
Fuel Tank Capacity:
2.0 L (0.5 gal)
Oil Type:
SAE 10W-40 API SE, SF, SG or higher
Oil Capacity With Filter Change:
0.8 L (0.85 US qt)
Safety Standards:
Designed to meet ASTM F2088, F2218, F1906, F1306, F1203, F1712, F2093, F2346 and ANSI B71.9 standards (check local regulations).
Throttle Limiter:
Adjustable throttle limiter screw for controlled speed.
Tether Cord:
Optional electronic tether cord system (often dealer-installed or aftermarket).
Footwells:
Full floorboards for rider foot protection.
Chain Guard:
Enclosed chain drive for safety.
Bumper:
Front bumper for protection.
Engine Oil Change:
Every 3 months or 50 hours of operation, whichever comes first.
Air Filter Cleaning:
Every 1 month or 25 hours of operation; clean and re-oil more frequently in dusty conditions.
Spark Plug Inspection:
Every 6 months or 100 hours of operation.
Drive Chain Lubrication:
Every 2 weeks or 10 hours of operation, and after washing the ATV.
Brake Adjustment:
As needed, check for proper free play.
Engine Oil Viscosity:
SAE 10W-40
Engine Oil Standard:
API SE, SF, SG, SH, SJ, SL or SMA
Brake Fluid:
DOT 3 or DOT 4 (check specific markings on reservoir if applicable, generally drum brakes so less critical than hydraulic)
Carburetor Issues:
Clogging of the small pilot jet due to fuel varnish can cause hard starting or poor idle, requiring cleaning.
Drive Chain Wear:
Regular lubrication and adjustment are critical to prevent premature chain and sprocket wear.
Throttle Limiter Adjustment:
Ensuring the throttle limiter is correctly adjusted is crucial for beginner safety.
Suzuki Atv Legacy:
Suzuki has a long-standing reputation for producing durable and capable ATVs, including pioneering models in various classes.
Lt Z50 Introduction:
The LT-Z50 was introduced as Suzuki's dedicated youth ATV, building on the success of other models and targeting the growing market for young riders.
Manufacturing Origin:
Japan (typical for Suzuki ATVs of this era)
Production Run:
The LT-Z50 was a popular model throughout its production run from 2004 to 2009, with minor updates during this period.
