Category:
Cruiser Motorcycle
Target Audience:
Riders seeking a powerful, comfortable, and stylish cruiser with a focus on reliable performance and customisation potential.
Competitors:
Honda Shadow series, Yamaha V-Star series, Kawasaki Vulcan series, Harley-Davidson Sportster and Softail models.
Engine Configuration:
Liquid-cooled, 4-stroke, V-twin engine.
Styling:
Aggressive, modern styling with custom cruiser elements, distinctive M-spec design.
Drivetrain:
Shaft drive for low maintenance and smooth power delivery.
Engine:
Complete engine assembly, disassembly, inspection, tuning, troubleshooting, and repair procedures for the V-twin engine.
Fuel System:
Fuel injection system, fuel pump, injectors, throttle body, fuel tank, lines, and pressure testing.
Ignition System:
Ignition coils, spark plugs, timing, CDI unit, and related electrical components.
Transmission:
Clutch operation, gearbox disassembly, assembly, gear inspection, lubrication, and troubleshooting.
Drivetrain:
Shaft drive system, universal joints, final drive gear inspection and maintenance.
Brakes:
Front and rear brake systems, caliper overhaul, master cylinder service, brake fluid replacement, bleeding procedures, and ABS (if applicable).
Suspension:
Front fork service (oil change, seal replacement), rear shock absorber adjustment and replacement, linkage inspection.
Electrical System:
Wiring diagrams, battery service, charging system (stator, regulator/rectifier), starter motor, lighting, switches, sensors, and ECU diagnostics.
Chassis And Frame:
Frame inspection, steering head bearing service, wheel bearing replacement, and general chassis component maintenance.
Bodywork And Trim:
Fairing removal and installation, seat service, fender and panel component removal and replacement.
Maintenance:
Scheduled maintenance intervals, oil changes, filter replacements, lubrication points, valve clearance checks, and spark plug replacement.
Troubleshooting:
Diagnostic flowcharts and procedures for common mechanical and electrical faults.
Repair:
Detailed step-by-step instructions for component disassembly, repair, and reassembly.
Calibration And Adjustment:
Throttle cable adjustment, clutch adjustment, idle speed setting, and brake lever adjustment.
Torque Specifications:
Comprehensive list of torque values for all critical fasteners and bolts.
Depth:
From basic rider maintenance to complete engine rebuilds and electrical system diagnostics.
Diagnostic Capabilities:
Inclusion of diagnostic trouble codes (DTCs) and testing procedures for sensors and actuators.
Engine Type:
V-twin, 4-stroke, SOHC, 4 valves per cylinder
Displacement:
1462 cc (89.2 cu in)
Bore X Stroke:
96.0 mm x 101.0 mm (3.78 in x 3.98 in)
Horsepower:
Approx. 72 HP @ 5400 RPM (manufacturer data may vary)
Torque:
Approx. 89 lb-ft @ 3400 RPM (manufacturer data may vary)
Fuel Delivery:
Fuel Injection, Digital EFI
Fuel Type:
Unleaded Gasoline (91 octane or higher recommended)
Cooling Method:
Liquid-cooled
Oil Type:
SAE 10W-40 API SG or higher, JASO MA certified motorcycle oil
Oil Change Interval:
Every 6,000 km (3,700 miles) or 6 months, whichever comes first.
Engine Oil Filter Replacement:
Replace at every oil change.
Air Filter Cleaning Inspection:
Inspect every 6,000 km (3,700 miles), clean or replace as needed.
Spark Plug Replacement:
Every 12,000 km (7,500 miles) or as per manual recommendation.
Valve Clearance Check:
Every 12,000 km (7,500 miles).
Brake Fluid Replacement:
Every 24 months or as needed, check fluid level regularly.
Engine Oil Capacity:
3.0 L (3.2 US qt) without filter, 3.2 L (3.4 US qt) with filter change.
Coolant:
Suzuki Long Life Coolant or equivalent (50/50 mix of ethylene glycol and deionized water)
Final Drive Oil:
Suzuki Gear Oil API GL-5 SAE 80W-90
Common Concerns:
Potential for occasional fuel injection system glitches, clutch drag at low speeds, and normal wear items like tires and brake pads.
Manual Benefit For Issues:
The manual provides diagnostic procedures and repair steps to address these potential issues effectively.
Manufacturer:
Suzuki Motor Corporation, Japan
Motorcycle Division:
Suzuki has a long history of producing reliable and performance-oriented motorcycles across various categories.
Boulevard Lineage:
The Boulevard line evolved from the Intruder series, offering a blend of classic cruiser aesthetics with modern engineering.
M90 Specifics:
The M90 was introduced to fill a niche for a more aggressively styled, larger-displacement cruiser within Suzuki's Boulevard range.
Production Period:
The M90 model was produced for a specific period, with the 2009 model being a key representation.
