Target Audience:
Owners of 2007-2009 Suzuki LT-Z90 Quadsport seeking to perform maintenance and repairs themselves or to understand the service requirements.
Value Proposition:
Provides factory-level repair and maintenance information at a fraction of the cost of dealership service, enabling cost-effective vehicle ownership.
Illustration Detail:
Hundreds of detailed illustrations and photos guide the user through procedures.
Completeness:
100% complete and intact, covering full disassembly of the machine.
Platform Compatibility:
Works on all PC-based Windows operating systems and Mac.
Engine:
Engine assembly, disassembly, tuning, lubrication, cooling system, fuel system, exhaust system, ignition system, starting system, charging system.
Transmission:
Transmission assembly, disassembly, clutch, gear shifting mechanisms, lubrication.
Chassis:
Frame, suspension (front and rear), steering system, wheels, tires, braking system (front and rear), drive chain, sprockets.
Electrical:
Wiring diagrams, lighting system, ignition switch, battery, starter motor, alternator, fuses, electrical component testing and troubleshooting.
Bodywork:
Body panels, seating, handlebars, controls, trim components, removal and installation procedures.
Maintenance:
Routine maintenance, oil changes, filter replacements, chain adjustments, spark plug replacement, valve clearance checks.
Troubleshooting:
Diagnostic charts, common problems and their solutions, electrical system diagnosis, engine performance issues.
Repair:
Detailed step-by-step repair procedures for all major components, from minor adjustments to major overhauls.
Disassembly Assembly:
Complete disassembly and reassembly instructions for all major vehicle systems.
Depth:
Comprehensive (do-it-yourself to experienced mechanic), covering basic maintenance through advanced diagnostics and full rebuilds.
Engine Type:
Four-stroke, SOHC, air-cooled, single-cylinder
Displacement:
89cc (Cubic Centimeters)
Bore X Stroke:
Approx. 47.0 mm x 51.8 mm (Specifics found in manual)
Compression Ratio:
Refer to manual (typically around 9.5:1 - 10.0:1 for this class)
Horsepower:
Not explicitly stated in product info, but typical for its class is low single digits (e.g., 5-7 HP).
Torque:
Not explicitly stated in product info, but commensurate with horsepower.
Carburetor Type:
Mikuni VM Series (Specific model number in manual, e.g., VM16SH)
Fuel Type:
Unleaded gasoline
Fuel Capacity:
Approx. 2.0 Liters (Refer to manual for exact capacity)
Oil Type:
SAE 10W-40 API SG or higher (Refer to manual for specific Suzuki recommendations)
Oil Capacity:
Approx. 0.8 Liters (Refer to manual for exact capacity and filter change capacity)
Transmission Type:
Automatic (CVT - Continuously Variable Transmission) with Forward, Neutral, Reverse.
Drive System:
Chain drive to rear wheel.
Transmission Fluid Type:
Refer to manual (typically a specific grade of gear oil or CVT fluid depending on design, but most likely standard gear oil).
Overall Length:
Approx. 1455 mm (57.3 in) (Refer to manual for exact dimensions)
Overall Width:
Approx. 960 mm (37.8 in) (Refer to manual for exact dimensions)
Overall Height:
Approx. 935 mm (36.8 in) (Refer to manual for exact dimensions)
Wheelbase:
Approx. 1015 mm (40.0 in) (Refer to manual for exact dimensions)
Curb Weight:
Approx. 115 kg (254 lbs) (Refer to manual for exact weight)
Maximum Load Capacity:
Refer to manual for rider and cargo capacity.
Safety Standards Compliance:
Designed to meet relevant safety standards for ATVs (All-Terrain Vehicles) of its class and era.
Braking System:
Hydraulic disc brakes front and rear for reliable stopping power.
Throttle Limiter:
Likely features an adjustable throttle limiter screw for beginner riders.
Frame Construction:
Robust steel frame designed for durability and stability.
Tires:
Knobby ATV tires providing grip on various terrains.
Oil Change Interval:
Refer to manual, typically every 1000 km or 6 months, whichever comes first. For light use, it might be extended, but consulting the manual is crucial.
Air Filter Cleaning Interval:
Refer to manual, recommended inspection every few rides and cleaning/replacement based on operating conditions.
Spark Plug Replacement Interval:
Refer to manual, typically around 5000 km or annually, depending on usage and plug condition.
Chain Lubrication And Adjustment Interval:
Lubricate chain every 500 km or after riding in wet conditions. Adjust chain slack as needed per manual specifications (typically 15-25mm).
Engine Oil Viscosity:
SAE 10W-40 API SG or higher.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid (Refer to manual for specific Suzuki recommendation).
Carburetor Clogging:
Can occur due to stale fuel or dirt ingress; regular fuel stabilizer use and proper storage procedures mitigate this.
Chain And Sprocket Wear:
Regular cleaning, lubrication, and tension adjustment are critical to prolonging the life of the drive chain and sprockets.
Cvt Belt Wear:
Periodic inspection and eventual replacement of the CVT belt are necessary as per the service manual's schedule.
Manufacturer:
Suzuki Motor Corporation, a Japanese multinational corporation renowned for its motorcycles, automobiles, and ATVs.
Development Focus:
The LT-Z90 was developed as an entry-level youth ATV, emphasizing ease of use, safety, and reliable performance for younger riders and beginners.
Production Period:
The LT-Z90 was produced for an extended period, with the specific model years covered by this manual being 2007-2009, though the platform may have existed slightly before and after these years under similar designations.