Target Audience:
DIY owners and technicians servicing retro-style Triumph 900cc parallel-twin motorcycles
Model Positioning:
Factory-style shop manual intended for home garages and professional workshops alike
Advantage:
Instant digital delivery at a fraction of the cost of a printed factory manual
Completeness:
Full workshop-level coverage, not an abbreviated owners handbook
Format:
Searchable PDF with bookmarked sections
Content:
Step-by-step service, repair and overhaul procedures with specifications and torque values
Systems Covered:
Engine, fuel system, transmission, electrical, chassis, brakes, wheels and bodywork
Scope:
Maintenance, troubleshooting, disassembly, inspection, reassembly and overhaul
Manual Type:
Workshop (shop) service manual
Delivery Method:
Instant digital download after purchase
Binding:
Digital - printable and viewable on computer, tablet or phone
Engine Removal and Refitting:
Complete engine and gearbox removal/refit procedures
Cylinder Head:
Head removal, valve inspection, lapping and reassembly
Cylinder and Pistons:
Bore measurement, piston/ring inspection and replacement
Crankshaft:
Crankshaft and connecting rod inspection procedures
Cooling:
Air-cooled engine cooling system checks
Carburetors:
Twin Keihin CV carburetor strip, clean, jetting and synchronization
Fuel Tank:
Tank removal, fuel tap and filter service
Exhaust:
Exhaust system removal and refit, seal replacement
Gearbox:
5-speed gearbox overhaul, gear selection and shift mechanism
Clutch:
Clutch removal, plate inspection and adjustment
Primary Drive:
Primary chain inspection and tensioning
Front Suspension:
Fork disassembly, seal replacement, oil specifications
Rear Suspension:
Shock absorber and swingarm service
Brakes:
Front disc and rear drum/disc brake pad, caliper and master cylinder service
Wheels and Tires:
Wheel removal, bearing replacement, tire fitting and balancing
Ignition System:
Digital ignition testing and timing checks
Charging System:
Alternator, regulator/rectifier and battery testing
Wiring:
Wiring diagrams and connector locations
Lighting and Instruments:
Lamp, switch and instrument cluster diagnosis
Maintenance Schedules:
Factory service intervals and lubrication points
Torque Values:
Torque specifications tables throughout
Troubleshooting:
Symptom-based diagnostic charts for engine, fuel, electrical and chassis faults
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Type:
Air-cooled 4-stroke parallel twin, DOHC, 8 valves
Bore x Stroke:
90 mm x 68 mm (approx., per factory data)
Compression Ratio:
Approximately 9.2:1
Maximum Power:
Approximately 61-63 bhp at 7,250 rpm
Maximum Torque:
Approximately 51 lb-ft (69 Nm) at 5,000 rpm
Fuel Delivery:
Twin Keihin CV carburetors
Fuel Capacity:
Approximately 16 liters (4.2 US gal)
Fuel Type:
Unleaded gasoline, 91 RON or higher recommended
Gearbox:
5-speed constant-mesh manual gearbox
Final Drive:
Chain drive (X-ring chain)
Clutch:
Wet, multi-plate diaphragm-spring clutch
Gear Pattern:
1-down, 4-up
Shift Mechanism:
Heel-toe lever with positive stop
Wheelbase:
Approximately 1,500 mm (59 in)
Overall Length:
Approximately 2,130 mm (84 in)
Seat Height:
Approximately 810 mm (31.9 in)
Curb (Wet) Weight:
Approximately 205-230 kg depending on model (Thruxton lighter than Scrambler)
Dry Weight:
Approximately 185-195 kg depending on model
Frame:
Tubular steel cradle frame
Fuel Capacity:
Approximately 16 liters (4.2 US gal)
Braking:
Front disc brake; rear disc or drum depending on model
Tires:
Tubeless tires (some markets/models fitted with tubes)
Lighting:
Halogen headlamp with high/low beam
Frame:
Tubular steel cradle frame with passenger grab rail
Mirrors and Instruments:
Two rearview mirrors; speedometer with indicator tell-tales
Crash Test Ratings:
N/A - motorcycles are not given standardized crash test ratings
Audio System:
N/A - no factory audio system fitted to this model
Instrumentation:
Analog speedometer/tachometer with warning lamps
Rider Aids:
N/A - no electronic rider aids (no ABS, traction control or ride modes) on this era
Ignition:
Fully transistorized digital ignition system
First Service:
Initial (running-in) check at 500 miles / 800 km
Regular Service:
Routine service every 6,000 miles / 10,000 km or 12 months
Valve Clearance:
Check at major service intervals per schedule (shim-under-bucket or screw adjusters per year)
Engine Oil:
SAE 10W-40 or 15W-50 API SF/SG motorcycle oil (semi-synthetic approved), approx. 4 liters with filter
Fork Oil:
Grade per model specification (typically 10W); quantity stated in manual
Brake Fluid:
DOT 4 (disc-braked models)
Known Issues / Wear Items
Carburetors:
Carb synchronization and pilot jet cleaning are regular items
Chain:
Drive chain wear - regular inspection, lubrication and slack adjustment
Valve Clearances:
Clearance drift over high mileage; check per schedule
Battery:
Battery and charging system checks recommended for seasonal storage
Manufacturer:
Triumph Motorcycles Ltd, Hinckley, England
Heritage:
Revival of the classic Triumph parallel twin with modern Hinckley engineering
Background:
Thruxton and Scrambler introduced as sportier and off-road-styled variants of the Bonneville
2006 Onwards:
Upgraded to the 865 cc engine (from the original 790 cc) with improved torque and a balance shaft on later years
Assembly:
Manufactured at Triumph's Hinckley facility (Thailand production for some later model years)