Segment:
Sport Touring Motorcycle
Target Audience:
Riders seeking a capable and comfortable machine for both commuting and longer-distance touring, with a focus on performance.
Key Competitors:
Honda VFR800, Yamaha YZF1000R Thunderace, Kawasaki ZZR1100, Ducati ST2.
Distinctive Attributes:
Inline three-cylinder engine, aerodynamic fairing, comfortable ergonomics for touring, sporty handling characteristics.
Primary Coverage:
Complete service, repair, maintenance, and troubleshooting for the 1999 Triumph Sprint ST RS 955.
Secondary Coverage:
Includes wiring diagrams, specifications, and procedures for all major vehicle systems.
Estimated Pages:
400-600 (typical for comprehensive service manuals of this era)
Type:
Service and Repair Manual
Engine:
Detailed overhaul, top-end, bottom-end, fuel injection, ignition, cooling, lubrication, and emissions control systems.
Transmission:
Clutch operation, gearbox disassembly and reassembly, shift mechanism, and lubrication.
Chassis:
Frame, swingarm, rear suspension (monoshock), front suspension (forks), steering system, and wheel bearings.
Brakes:
Hydraulic brake system (front and rear calipers, master cylinders, brake lines), ABS system (if equipped), and bleeding procedures.
Electrical:
Battery, charging system (alternator, regulator/rectifier), starting system, lighting, instruments, ignition system, fuel injection ECU, and wiring diagrams.
Bodywork:
Fairing removal and installation, seat, fuel tank, and other body panels.
Maintenance:
Oil changes, filter replacements, chain adjustment, brake pad replacement, coolant flush, spark plug replacement, valve clearance checks.
Troubleshooting:
Diagnostic procedures for common problems, fault finding charts based on symptoms.
Repair:
Step-by-step instructions for component disassembly, repair, and reassembly.
Installation:
Instructions for installing specific components and accessories.
Depth:
Comprehensive, covering routine maintenance to full engine and transmission rebuilds. Includes detailed torque specifications, clearances, and diagnostic information.
Searchability:
Searchable text for easy navigation and information retrieval.
Resolution:
High-resolution scans of original factory documentation, ensuring clear diagrams and text.
Format Details:
Digital PDF format, easily viewable on computers, tablets, and smartphones.
N/A:
N/A (Digital Format)
Type:
Liquid-cooled, 12-valve, DOHC, inline three-cylinder
Bore X Stroke:
74.0 mm x 74.4 mm
Compression Ratio:
11.2:1
Horsepower:
Approximately 108-110 bhp @ 9,500 rpm (claimed)
Torque:
Approximately 70-72 lb-ft @ 7,000 rpm (claimed)
Induction:
Electronic Fuel Injection (EFI) - Sequential multi-point injection
Fuel Type:
Unleaded gasoline (95 RON recommended)
System:
Digital ignition system with electronic spark advance
N/A:
Motorcycle safety is typically assessed through handling dynamics and braking performance, rather than crash test ratings.
Brakes:
Triple disc brakes (dual front, single rear) with multi-piston calipers. ABS was optional on some models/markets.
Tires:
Sport-touring biased tire fitment, typically 120/70-17 front, 180/55-17 rear.
Lighting:
Twin halogen headlights for improved nighttime visibility.
Ergonomics:
Designed for rider comfort over longer distances, reducing fatigue.
N/A:
As a 1999 motorcycle, infotainment systems were not a feature. Focus is on mechanical and electrical systems.
ABS:
Anti-lock Braking System (ABS) was an optional feature for some 1999 Sprint ST/RS models, detailed in the manual if equipped.
N/A:
No electronic connectivity features present on this model.
Oil Change:
Every 6,000 miles or 12 months, whichever comes first. (Refer to manual for exact spec)
Valve Clearance:
Every 12,000 miles or 24 months. (Refer to manual for exact spec)
Coolant Flush:
Every 24,000 miles or 24 months. (Refer to manual for exact spec)
Engine Oil:
SAE 10W-40, API SG or higher, JASO MA certified motorcycle specific oil. Capacity: Approx. 3.7 liters with filter change.
Coolant:
Ethylene glycol based, 50% mixture with distilled water. Triumph recommends their own coolant or equivalent.
Brake Fluid:
DOT 4 hydraulic brake fluid.
Fork Oil:
Refer to manual, typically around SAE 5W or 7.5W. Check specific damping characteristics.
Fuel Pump:
Early models sometimes experienced fuel pump issues; diagnosis and replacement procedures are covered.
Regulator Rectifier:
Potential for regulator/rectifier failure leading to charging problems; manual will detail testing.
Cam Chain Tensioner:
Some riders report a noisy cam chain tensioner; the manual will show inspection and potential replacement.
Origin:
Triumph Motorcycles Ltd., a British manufacturer with a long and storied history dating back to 1902.
Predecessor:
The Sprint ST RS 955 evolved from the earlier T595 Sprint ST model, which was Triumph's first modern sport-touring offering.
Rs Designation:
The 'RS' designation typically signified a sportier variant, often with improved suspension and slightly different styling compared to the standard ST.
Production Period:
The 955i engine was introduced in 1997 and continued through various models until being replaced by the 1050cc engine in 2005. The 1999 model year represents an important iteration.
Manufacturing Location:
Hinckley, Leicestershire, England.
