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Basic Information
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Identification
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Make:
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BMW
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Manual Product Name:
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BMW K1100RT R1100RS R850-1100GS R850-1100R Repair Manual
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Manual Product Description:
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Workshop Service Manual Repair Manual Download for BMW K1100RT, R1100RS, R850-1100GS, R850-1100R. Used by dealership technicians for maintenance, service, diagnosis, and repair. Highly detailed.
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Codes
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Vehicle Platform Codes Implied:
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K-Series (K1100RT), R-Series (R1100RS, R850GS, R1100GS, R850R, R1100R)
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Introduction
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Market Position
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Segment:
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High-performance, luxury touring and sport-touring motorcycles.
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Target Audience:
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Owners seeking to perform their own maintenance and repairs, independent workshops, and BMW enthusiasts.
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Competitive Analysis
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Rival Manufacturers:
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Honda (e.g., ST1100), Yamaha (e.g., FJ1200), Kawasaki (e.g., GTR1000).
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Key Features
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Bmw Engineering Philosophy:
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Emphasis on rider comfort, advanced technology for its era, robust build quality, and boxer twin (R-series) or inline-four (K-series) engine configurations.
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Manual Value Proposition:
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Provides dealership-level technical information, empowering owners to maintain and repair their complex BMW motorcycles effectively, saving costs and ensuring longevity.
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Manual Details
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Coverage Areas
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Engine Coverage:
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Complete engine overhaul, diagnosis, tuning, and component repair for all specified models.
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Transmission Coverage:
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Manual and potentially automatic (if applicable for any model variant) transmission service, repair, and troubleshooting.
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Chassis Coverage:
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Frame, suspension (front and rear), steering, wheels, and related components.
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Electrical System Coverage:
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Wiring diagrams, ignition system, lighting, battery, charging system, instrumentation, and electronic control units (ECUs).
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Fuel System Coverage:
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Fuel injection systems (Bosch Motronic variations likely), fuel pump, injectors, sensors, and emissions control.
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Brake System Coverage:
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Hydraulic systems, ABS (if equipped), brake calipers, master cylinders, and discs.
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Bodywork And Fairings Coverage:
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Disassembly, installation, and repair of fairings, body panels, and trim.
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Troubleshooting Guides:
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Comprehensive diagnostic procedures for common and uncommon issues.
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Maintenance Schedules:
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Recommended service intervals for all major components and systems.
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Page Count
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Estimated Page Count:
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Likely 500+ pages, typical for comprehensive workshop manuals covering multiple models.
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Manual Type
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Type:
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Workshop Service Manual / Repair Manual
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Language
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Language:
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English (standard for this type of manual, though localized versions exist).
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Format
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Format:
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Downloadable (PDF likely)
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Manual Coverage
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Systems Covered
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Engine Management:
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Detailed information on the Bosch Motronic engine management system, including sensor diagnostics, actuator testing, and ECU fault codes.
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Suspension System:
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Adjustments, seal replacement, fluid changes for telescopic forks (e.g., Telelever on R-series) and rear shock absorbers.
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Anti Lock Braking System:
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Diagnosis and bleeding procedures for BMW's ABS systems (e.g., ABS II, ABS III).
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Ignition System:
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Spark plug specifications, ignition coil testing, timing adjustments (if applicable).
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Fuel Delivery System:
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Fuel pressure testing, injector resistance checks, fuel filter replacement.
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Exhaust System:
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Catalytic converter information, lambda sensor (O2 sensor) function.
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Clutch Mechanism:
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Hydraulic clutch operation, slave and master cylinder service, clutch disc replacement.
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Cooling System:
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Radiator service, fan operation, coolant type and capacity, thermostat replacement (for K-series).
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Lubrication System:
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Oil change intervals, oil filter part numbers, oil capacities, gearbox oil specifications.
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Instrumentation And Indicators:
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Diagnosis of dashboard lights, speedometer, tachometer, and warning indicators.
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Procedures Included
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Routine Maintenance:
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Oil changes, filter replacements, chain/drive shaft lubrication, brake fluid checks, tire pressure adjustments.
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Engine Overhaul:
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Piston ring replacement, valve lapping, camshaft inspection, head gasket replacement, bearing checks.
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Transmission Rebuild:
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Gear selection mechanism, clutch pack servicing, output shaft seal replacement.
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Electrical Diagnostics:
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Wiring harness inspection, multimeter usage for voltage, resistance, and continuity tests.
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Fuel System Cleaning And Testing:
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Injector cleaning, fuel pressure regulator testing.
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Brake System Bleeding:
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Standard bleeding procedures and specific procedures for ABS-equipped models.
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Suspension Fork Rebuild:
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Fork seal replacement, spring replacement, damping adjustment.
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Bodywork Repair And Replacement:
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Mounting point repair, fairing crack repair, decal application.
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Torque Specifications:
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Detailed torque values for all critical fasteners.
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Technical Depth
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Depth:
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Comprehensive, suitable for professional technicians and experienced DIY mechanics. Covers everything from basic checks to full engine and transmission rebuilds.
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Diagnostic Capability:
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Detailed troubleshooting charts, symptom-to-cause analysis, and diagnostic flowcharts.
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Special Tools:
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Identification and usage instructions for BMW-specific tools required for certain procedures.
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Engine Specifications
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Primary Engine
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K1100Rt Engine:
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1093cc, liquid-cooled, inline-four cylinder, DOHC, fuel-injected.
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R1100 Engines:
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1085cc (R1100RS, R1100GS, R1100R), air/oil-cooled, horizontally-opposed (boxer) twin-cylinder, SOHC, fuel-injected.
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R850 Engines:
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848cc (R850GS, R850R), air/oil-cooled, horizontally-opposed (boxer) twin-cylinder, SOHC, fuel-injected.
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Performance
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K1100Rt Horsepower:
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Approximately 95-100 hp (depending on market and specific tuning).
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R1100 Series Horsepower:
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Approximately 90-95 hp (R1100RS/GS/R).
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R850 Series Horsepower:
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Approximately 70-80 hp (R850GS/R).
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Fuel System
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Injection System:
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Bosch Motronic (various iterations like 2.1, 2.2, 2.4 for K1100 and 2.2, 2.4 for R1100 series), electronic fuel injection.
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Fuel Type:
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Unleaded gasoline (premium recommended).
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Engine Layout
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K1100Rt Layout:
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Inline 4-cylinder, transverse.
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R Series Layout:
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Boxer 2-cylinder, longitudinal.
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Maintenance
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Service Intervals
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Oil Change Interval:
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Typically every 10,000 km (6,000 miles) or annually. Consult manual for exact interval.
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Valve Clearance Check:
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Typically every 20,000 km (12,000 miles). Shims are used for adjustment.
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Spark Plug Replacement:
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Around 20,000 km (12,000 miles).
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Fluid Specifications
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Engine Oil Spec:
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API SG/SH or higher, SAE 20W-50 or 15W-40 recommended. Specific BMW recommendations may vary slightly. Consult manual.
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Transmission Oil Spec:
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SAE 75W-90 API GL-5 gear oil for gearbox and final drive (common for shaft drive).
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Brake Fluid Spec:
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DOT 4 hydraulic fluid.
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Coolant Spec K1100Rt:
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Ethylene glycol based coolant (e.g., BMW's own coolant or a compatible equivalent), mixed 50/50 with distilled water.
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Known Issues
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Common Wear Items:
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Fuel pump relays (K-series), ABS pump solenoids, clutch slave cylinders, main wiring harness connector pins (corrosion), exhaust header pipe corrosion, some fuel injector O-rings.
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Engine Management Quirks:
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Hesitation or rough running due to aged fuel pressure regulators, dirty injectors, or faulty throttle position sensors (TPS) on Motronic systems.
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Suspension Common Points:
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Leaking fork seals, worn pivot bearings on Telelever systems, shock absorber degradation over time.
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Vehicle History
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Brand Heritage
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Bmw Motorcycle History:
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BMW has a long and storied history in motorcycle manufacturing, dating back to the early 20th century, known for innovation, quality, and performance, particularly with their boxer twin engines and later the K-series inline-fours.
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Model Evolution
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K1100Rt Evolution:
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Successor to the K100RT, featuring a more powerful 1100cc engine and improved aerodynamics for touring comfort.
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R1100 Series Evolution:
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Represents a significant technological leap from earlier R-series boxers, introducing the Telelever front suspension, BMW's Motronic fuel injection, and increased power and displacement. The R1100GS became a benchmark in the adventure touring segment.
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Production
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Production Years K1100Rt:
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Approximately 1990-1996.
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Production Years R1100Rs:
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Approximately 1992-2001.
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Production Years R1100Gs:
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Approximately 1993-1999.
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Production Years R850 1100R:
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R850R: approx. 1994-2006; R1100R: approx. 1994-2001.
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