Manual Coverage
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Systems Covered
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Engine:
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Engine disassembly, assembly, diagnosis, troubleshooting, and specifications for the Twin Cam 88B engine
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Transmission:
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Servicing and repair of the 5-speed constant mesh transmission
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Fuel System:
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EFI system, fuel pump, injectors, throttle body, and fuel tank service
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Electrical System:
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Ignition system, lighting, charging system, battery, starting system, diagnostics, and wiring diagrams
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Brakes:
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Hydraulic brake system service, including master cylinders, calipers, and brake lines
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Suspension:
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Front fork (Telescopic) and rear shock absorber service, adjustment, and replacement
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Frame And Bodywork:
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Chassis inspection, component removal/installation, fenders, fuel tank, seat, and controls
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Wheels And Tires:
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Wheel bearing service, tire replacement, and wheel balancing
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Exhaust System:
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Information on the stock exhaust system, including removal, installation, and common modifications.
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Clutch System:
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Detailed procedures for clutch adjustment, service, and replacement of clutch components.
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Procedures Included
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Maintenance:
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Scheduled maintenance, oil changes, filter replacements, lubrication points, and tune-ups
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Troubleshooting:
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Diagnostic procedures for common and complex issues, fault codes, and symptom-based troubleshooting
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Repair:
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Detailed step-by-step repair instructions for all major and minor components
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Rebuilds:
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Complete engine and transmission rebuild procedures with torque specifications and clearances
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Diagnostics:
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Engine management system diagnostics, sensor testing, and module troubleshooting
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Wiring Diagrams:
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Complete electrical system wiring diagrams with color coding for easy troubleshooting.
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Technical Depth
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Depth:
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Comprehensive coverage from basic maintenance to complete engine and transmission overhauls
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Specifications Depth:
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Includes detailed specifications for all engine, transmission, and chassis components, including torque values, clearances, and measurements.
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Engine Specifications
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Primary Engine
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Engine Type:
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Harley-Davidson Twin Cam 88B
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Displacement:
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1449cc (88 cubic inches)
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Bore X Stroke:
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3.75 in x 4.00 in (95.25 mm x 101.6 mm)
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Compression Ratio:
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8.8:1
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Cylinder Layout:
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45-degree V-twin, air-cooled
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Valve Train:
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OHV, 2 valves per cylinder
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Oil Capacity:
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3.5 US quarts (3.3 liters) with filter change
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Performance
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Horsepower:
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Approximately 65-70 HP (Estimated, factory figures often not published directly)
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Torque:
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Approximately 85-90 lb-ft @ 3000-3500 RPM (Estimated)
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Fuel System
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Fuel Delivery:
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Electronic Sequential Port Fuel Injection (ESPFI)
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Fuel Type:
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Unleaded gasoline, minimum 89 octane (See manual for specific recommendations)
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Maintenance
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Service Intervals
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Oil Change Interval:
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Every 5,000 miles or 6 months (whichever comes first), check manual for detailed recommendations.
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Primary Chain Tensioner Inspection:
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Inspect every 10,000 miles or as per manual.
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Spark Plug Replacement:
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Typically every 10,000-15,000 miles, consult manual for specific plug type and gap.
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Belt Check:
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Inspect belt tension and condition at every service.
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Fluid Specifications
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Engine Oil:
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Harley-Davidson 20W-50 Motorcycle Oil or equivalent (check manual for API rating and specific type)
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Primary Chain Case Oil:
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Harley-Davidson Primary Chain Lubricant or equivalent (check manual for specific type)
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Transmission Oil:
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Harley-Davidson Syn 3 or equivalent (check manual for viscosity and API rating)
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Brake Fluid:
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DOT 4 brake fluid (check manual for specific type and color)
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Known Issues
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Common Wear Items:
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Clutch plates, brake pads, front fork seals, and drive belt are common wear items.
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Primary Chain Tensioner:
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The stock primary chain tensioner can wear out, leading to noise. Hydraulic tensioners are a common upgrade.
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Carburetor Vs Efi:
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While this is an EFI model, earlier Harley models had carburetors which could be prone to tuning issues if not maintained. The EFI system on this model is generally robust but requires specific diagnostic tools.
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