Target Audience:
Owners, DIY Mechanics, Dealership Technicians
Purpose:
To provide authoritative guidance for the maintenance and repair of the Suzuki LT-Z90 QuadSport.
Value Proposition:
Offers dealership-level repair information for home use, saving on labor costs and ensuring correct procedures.
Diagrams:
Detailed Step-by-Step Diagrams and Illustrations
Clarity:
Clear, Concise Instructions
Completeness:
Covers All Aspects of Workshop Procedures
Engine:
Engine Overhaul, Top End, Bottom End, Lubrication, Cooling
Fuel System:
Carburetor Tuning and Rebuild, Fuel Delivery
Drivetrain:
Transmission, Drive Shafts, Final Drive
Electrical System:
Ignition System, Lighting, Battery, Charging System, Wiring Diagrams
Chassis:
Frame, Suspension, Steering, Wheels, Tires
Braking System:
Hydraulic Brakes, Parking Brake, Bleeding Procedures
Body And Plastics:
Body Panels, Seat, Handlebars
Routine Maintenance:
Oil Changes, Filter Replacement, Spark Plug Service, Air Filter Cleaning/Replacement
Troubleshooting:
Diagnostic Procedures for Common Issues, Fault Finding
Component Rebuild:
Carburetor Rebuild, Engine Component Overhaul
Adjustments:
Carburetor Jetting, Clutch Adjustment, Brake Adjustment
Technical Specifications:
Torque Values, Clearances, Fluid Capacities, Electrical Specifications
Depth:
Comprehensive (from basic maintenance to complete engine rebuilds)
Engine Type:
Four-Stroke, Air-Cooled
Bore X Stroke:
49.0 mm x 49.6 mm
Valvetrain:
SOHC, 2 Valves
Horsepower:
Approx. 7.1 HP @ 7,000 RPM (Estimated)
Torque:
Approx. 7.5 Nm @ 5,000 RPM (Estimated)
Carburetor:
Mikuni VM17SH
Fuel Type:
Unleaded Gasoline
Fuel Tank Capacity:
2.8 L (0.7 US gal)
Oil Type:
SAE 10W-40 API SE, SF, or SG
Oil Capacity:
0.8 L (0.85 US qt) without filter change; 0.9 L (0.95 US qt) with filter change
Crash Test Results:
Not Applicable (ATV)
Brakes:
Front: Dual Hydraulic Disc; Rear: Single Hydraulic Disc
Parking Brake:
Mechanical Drum Brake, Hand Lever Operated
Lighting:
Headlights, Taillight, Brake Light
Throttle Limiter:
Adjustable throttle limiter screw for controlled acceleration.
Engine Oil Change:
Every 100 hours or 6 months, whichever comes first (Check Manual for exact interval).
Air Filter Cleaning:
Every 20 hours or every 3 months (More frequently in dusty conditions).
Spark Plug Service:
Inspect every 6 months; Replace as needed based on condition and performance.
Valve Clearance Check:
Every 6 months or 100 hours (Refer to manual for exact spec and interval).
Engine Oil Viscosity:
SAE 10W-40
Engine Oil Standard:
API SE, SF, or SG
Brake Fluid:
DOT 3 or DOT 4
Final Drive Oil:
Check Manual (Typically SAE 80W-90 gear oil or specific Suzuki lubricant).
Carburetor Clogging:
Common issue with fuel sitting; requires regular cleaning or fuel stabilizer.
Cvt Belt Wear:
Belts can wear over time, affecting performance; manual details inspection and replacement.
Idle Speed Adjustment:
May require periodic adjustment for smooth running.
Manufacturer Origins:
Suzuki Motor Corporation, Japan
Automotive Focus:
Long history in motorcycles, ATVs, and automobiles.
Quadsport Line:
The LT-Z series represents Suzuki's entry into the youth and sport ATV market.
Lt90 Positioning:
Designed as a beginner-friendly, entry-level sport ATV for younger riders.
Manufacturing Location:
Likely Asia (Specific plant may vary)
Model Generation:
The LT-Z90 was part of a generation of Suzuki youth ATVs known for reliability and ease of use.
