Category:
Performance Motorcycle
Era Classification:
Sport Touring / Muscle Bike
Key Competitors:
Honda CB900F, CB1100F, Kawasaki Z1100, Suzuki GS1000, GS1100
Engine Configuration:
Inline-four cylinder, air-cooled, SOHC
Performance Focus:
Strong torque, comfortable cruising, capable of spirited riding
Distinctive Characteristics:
Massive torque, comfortable ergonomics for long distances, distinctive styling for its era
Primary Coverage:
Service, Repair, Workshop
Scope:
Full service and repair instructions
Target Audience:
Professional Mechanics, Enthusiasts
Estimated Pages:
Approximately 300-400 pages (typical for this era/scope)
Type:
Service Repair Workshop Manual
Engine Mechanical:
Engine disassembly, assembly, inspection, troubleshooting, tuning, cylinder head, cylinders, pistons, crankshaft, camshafts, timing components
Fuel System:
Carburetor identification, removal, disassembly, cleaning, adjustment, synchronization, fuel pump, fuel lines
Electrical System:
Ignition system, charging system (alternator, regulator), starting system (starter motor), lighting, instruments, wiring diagrams, troubleshooting electrical faults
Drivetrain:
Clutch operation, inspection, and replacement; gearbox disassembly, assembly, and inspection; final drive (shaft drive) inspection and maintenance
Suspension:
Front fork overhaul, seal replacement, oil levels, rear shock absorber adjustment and replacement, linkage inspection
Braking System:
Front and rear brake caliper inspection and overhaul, master cylinder service, brake fluid replacement, bleeding procedures, disc and pad inspection
Cooling System:
Air cooling system design, heat dissipation, engine component cooling
Chassis And Bodywork:
Frame inspection, wheel bearing maintenance, steering head bearing adjustment, body panel removal and installation, seat, fuel tank, handlebars
Routine Maintenance:
Oil change, filter replacement, spark plug service, air filter cleaning/replacement, chain adjustment (if applicable, though XS1100 is shaft drive), brake fluid flush, valve clearance check/adjustment
Troubleshooting:
Diagnostic charts, common problem identification and solutions for engine, electrical, and mechanical issues
Rebuilding Procedures:
Detailed step-by-step instructions for engine, transmission, and other major component overhauls
Technical Adjustments:
Carburetor synchronization, ignition timing, idle speed adjustment, valve clearance adjustment
Depth:
Comprehensive, covering from basic maintenance to full engine rebuilds and complex diagnostics
Type:
Air-cooled, four-stroke, DOHC inline-four
Displacement:
1097 cc (1.1 L)
Bore X Stroke:
74.0 mm x 64.0 mm
Valve Train:
DOHC, 2 valves per cylinder
Horsepower Rating:
Approx. 90-95 hp @ 8000 rpm (claimed)
Torque Rating:
Approx. 68-70 lb-ft @ 6000 rpm (claimed)
Carburetion:
Four Mikuni VM26SS constant velocity carburetors
Fuel Type:
Unleaded gasoline (87 octane minimum recommended)
Oil Type:
API SE, SF Service Classification, SAE 20W-40 or 10W-40 motorcycle specific oil
Oil Capacity:
4.0 US quarts (3.8 L) with filter change
Length:
Approximately 2270 mm (89.4 in)
Width:
Approximately 810 mm (31.9 in)
Height:
Approximately 1230 mm (48.4 in)
Dry Weight:
Approximately 240 kg (529 lbs)
Wet Weight:
Approximately 257 kg (567 lbs)
Front Tire Size:
3.50-19 4PR
Rear Tire Size:
4.25/5.00-17 4PR
Front Wheel:
Cast aluminum, 19 x 2.15 inch
Rear Wheel:
Cast aluminum, 17 x 3.00 inch
Crash Test Ratings:
N/A (Motorcycle, pre-standardized testing)
Brakes:
Dual disc front, single disc rear
Lighting:
Halogen headlamp, taillight, turn signals
Instrumentation:
Speedometer, tachometer, fuel gauge, indicator lights
Engine Oil Change:
Every 2,000-3,000 miles or 6 months
Oil Filter Replacement:
With every oil change
Spark Plug Check Clean:
Every 2,000-3,000 miles
Valve Clearance Check:
Every 4,000-6,000 miles
Brake Fluid Flush:
Every 12-24 months
Engine Oil Viscosity:
SAE 20W-40 or 10W-40
Transmission Gear Oil:
API GL-3, SAE 80 or 90
Brake Fluid:
DOT 3 or DOT 4 (check manual for specific type)
Cam Chain Tensioner:
Can wear out, leading to rattling noises from the engine.
Carburetor Sync Stability:
Carburetors require regular synchronization for smooth running; vacuum leaks can occur over time.
Electrical Connections:
Older wiring can corrode or become brittle; stator and rectifiers can fail.
Fuel Tank Rust:
Internal rust can develop if the bike sits with fuel, contaminating the fuel system.
Shaft Drive Spline Lubrication:
Requires periodic greasing of drive shaft splines to prevent wear.
Yamaha Motor Corporation:
Founded in 1955, with a strong reputation in motorcycles, audio equipment, and musical instruments.
Xs Series:
The XS1100 was Yamaha's flagship large displacement motorcycle of its era, succeeding the XS750 and part of Yamaha's push into the performance motorcycle market.
Xs1100E Variant:
The 'E' designation typically signifies the standard model for that year, with variations often found in styling, minor component upgrades, and color schemes across model years.
Production Period:
1978-1981
Manufacturing Location:
Japan
Era Impact:
Widely regarded as a landmark motorcycle for its torque and comfort in the late 1970s and early 1980s, competing effectively in the hypersport category of its time.
Reviews:
Praised by contemporary motorcycle journalists for its powerful engine and comfortable ride, though sometimes criticized for weight and handling compared to more sport-focused bikes.
Manual Quality:
Represents the official Yamaha factory service manual, the gold standard for repair information.
