Segment:
Full-size Japanese Sport-Touring Motorcycle
Era:
Late 1970s / Early 1980s - Premium motorcycle segment
Competitors:
Honda CB900F/CB1100, Kawasaki KZ1000, Suzuki GS1000/GS1100
Engine Configuration:
Inline-four cylinder, air-cooled
Drivetrain:
Shaft drive, offering low maintenance and smooth power delivery
Suspension:
Advanced suspension for its time, including front fork air assist on some variants
Handling:
Known for its stable handling and comfortable ride, suitable for touring
Engine:
Complete overhaul, disassembly, assembly, tuning, diagnostics
Fuel System:
Carburetor overhaul, adjustment, synchronization, fuel pump, lines
Ignition System:
CDI unit, ignition coils, spark plugs, timing
Transmission:
Clutch operation, gearbox disassembly, assembly, lubrication
Drivetrain:
Shaft drive system, universal joints, final drive gear case
Brakes:
Hydraulic brake system (front and rear), caliper overhaul, master cylinder, brake fluid specifications
Suspension:
Front telescopic forks (including air assist on some models), rear swingarm, shock absorbers, adjustment
Electrical System:
Wiring diagrams, charging system (alternator, regulator/rectifier), lighting, starter motor, battery
Chassis And Bodywork:
Frame inspection, body panel removal/installation, seat, fuel tank, handlebars, controls
Cooling System:
Oil cooling system (oil cooler, lines, oil filter)
Wheels And Tires:
Wheel bearing maintenance, tire pressure specifications, wheel removal/installation
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plug checks, valve clearance adjustment
Troubleshooting:
Diagnostic charts, common problem identification and solutions
Repair:
Step-by-step repair instructions for all major components and systems
Overhaul:
Complete engine rebuild procedures, carburetor overhauls, transmission rebuilds
Adjustment:
Carburetor synchronization, idle speed adjustment, valve clearance, clutch and throttle cable free play
Disassembly Assembly:
Detailed instructions for component removal and reinstallation
Depth:
Comprehensive factory-level detail suitable for professional mechanics and experienced enthusiasts
Diagnostics:
Advanced diagnostic procedures, electrical system troubleshooting, ignition timing checks
Specifications:
Torque values, clearances, fluid capacities, electrical component specifications
Type:
Four-stroke, air-cooled, DOHC, inline-four
Displacement:
1097 cc (67.0 cubic inches)
Bore X Stroke:
71.5 mm x 68.6 mm (2.81 in x 2.70 in)
Valve Train:
DOHC, 2 valves per cylinder
Horsepower:
Approx. 96 hp @ 8000 rpm (manufacturer claim, actual may vary)
Torque:
Approx. 68 lb-ft @ 6500 rpm (manufacturer claim, actual may vary)
Carburetion:
Four Mikuni VM32SS Constant Velocity (CV) carburetors
Fuel Capacity:
Approx. 5.5 US gallons (21 liters)
Ignition Type:
Electronic ignition (CDI)
System:
Wet sump with oil cooler
Oil Capacity:
Approx. 3.4 US quarts (3.2 liters) with filter change
Oil Specification:
API SG or higher, SAE 10W-40 recommended (refer to manual for exact specification)
Crash Safety:
Not applicable to this era of motorcycle, focus on rider safety features and maintenance
Braking System:
Dual front disc brakes, single rear disc brake
Lighting:
Halogen headlight, taillight, brake light, turn signals
Frame Construction:
Steel cradle frame designed for stability
Oil Change Interval:
Every 3,000 miles or 6 months (refer to manual for specifics)
Valve Clearance Interval:
Every 6,000 miles or 12 months (refer to manual for specifics)
Spark Plug Replacement:
Refer to manual; typically checked at oil change intervals and replaced as needed
Engine Oil:
API SG or higher, SAE 10W-40 recommended
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid (refer to manual for exact specification)
Fork Oil:
Refer to manual for specific type and quantity; likely a light-weight suspension oil
Final Drive Oil:
Yamaha Hypoid Gear Oil or equivalent SAE 80W-90 (refer to manual)
Carburetor Issues:
Diaphragm wear, float bowl gasket leaks, synchronization drift
Electrical Issues:
Aging wiring harness, regulator/rectifier failures, CDI unit issues
Fuel System Issues:
Fuel tank rust if not properly maintained, petcock leaks
Shaft Drive Issues:
U-joint wear (rare), final drive seal leaks
Engine Rebuild:
Piston ring replacement, valve seat regrinding, bearing replacement
Suspension Rebuild:
Fork seal replacement, fork oil changes, rear shock refurbishment
Brake System Overhaul:
Piston seal replacement in calipers and master cylinders
Heritage:
Yamaha Motor Corporation, established in 1955, renowned for its musical instruments and later its motorcycles
Lineage:
The XS1100 series represented Yamaha's entry into the large-displacement motorcycle market, building upon previous XS models
Xs Series:
Part of the XS series which included models like the XS650, XS750, and the flagship XS1100
Production Years:
1978-1981
Manufacturing Location:
Japan
