1976–1977 Triumph Bonneville 750 T140V and Tiger 750 TR7RV Parts Catalog (P/N 99–2257)

This Triumph replacement parts catalog covers the 1976–1977 Bonneville 750 T140V and Tiger 750 TR7RV, from engine 62501. Publication P/N 99-2257 is the revised August 1976 edition.

Text search and navigation: PDF text search and embedded bookmarks are not available. The alphabetical component index and numerical parts index provide references for manual page lookup.

• Engine components: Crankshaft, connecting rods, crankcase, cylinder heads, valve train and oil pump, with exploded views and individual replacement-part listings.

• Transmission and primary drive: Five-speed gearbox shafts, gears and selectors, plus kickstarter, clutch, shock absorber, chaincase and primary-chain components.

• Fuel and intake: Separate Amal Concentric 930 carburetor breakdowns for single-carburetor TR7RV and twin-carburetor T140V configurations, with corresponding manifolds and air-cleaner parts.

• Brakes and suspension: Front and rear disc-brake assemblies, master-cylinder kits, telescopic front forks, swinging arm and rear suspension units.

• Ignition and electrical parts: Contact breaker, auto-advance unit, RM21 alternator components, ignition coils, condensers, rectifier, Zener diode and lighting assemblies.

• Hardware and tools: Standard fastener specifications, an illustrated toolkit and an Essential Service Tools list with manufacturer part numbers.

This catalog suits owners and repair shops familiar with matching exploded views and part references to the assemblies on their machine.

Engine and Gearbox Parts Identification

The Crankshaft and Connecting Rods, Oil Pump and Release Valve, and Gearbox Shafts and Gears (5 Speed) drawings connect numbered components to parts lists and quantities. Assembly headings and indented component entries distinguish complete assemblies from their constituent parts.

Oversize piston and ring sets, valve-guide sets, timing gears and gasket sets support parts selection for engine repair. The crankcase section lists replacement halves only as a matched pair, part 71-7021.

Piston fitment: The listing identifies the 7.9:1 piston, 71-3778, as fitted from engine PP78605. This provides a specific fitment reference when choosing replacement pistons.

Repair scope: This is a parts catalog. It does not contain step-by-step repair or overhaul instructions, diagnostic test procedures, or torque and wear-limit tables. The exploded views support component identification and must be used with appropriate service instructions for mechanical work.

Carburetor, Brake and Chassis Variants

The separate Amal Carburetor, TR7RV and Amal Carburetor, T140V drawings show the components for each fuel-system configuration. The T140V listings distinguish left and right carburetors, while the intake sections identify the corresponding single- and twin-carburetor air-cleaner fittings.

Controls and fork fitments: Control-cable listings distinguish high and low handlebars, and the front-brake parts list identifies different hoses for those configurations. The Telescopic Front Fork section separates general-market and USA assemblies and lists alternative outer-cover fittings.

Front and rear brake listings include master-cylinder repair or service kits, caliper pistons, seals and mounting hardware. Body and chassis coverage extends to fuel tanks, twin-seat mountings, exhaust pipes, mufflers and suspension-unit components.

Electrical Components and Tachometer Changes

Electrical listings identify charging, ignition and lighting parts, including switches, lamp fittings and battery-carrier hardware. The main wiring harness, 54962258, is listed without an illustration; electrical wiring diagrams are not included.

Tachometer gearbox: The instrument section distinguishes thrust washer 71-2482 before engine XN65837 from thrust cap 71-7012 after that number. These references help match replacement components to the engine number before ordering.

Technical Data, Hardware and Service Tools

The technical-data table covers compression ratios, carburetor settings, sprocket and chain specifications, tire sizes and fluid capacities. Oil-tank, gearbox, primary-chaincase and fork capacities appear as separate entries.

Standard hardware tables identify thread sizes, hex dimensions and under-head lengths. The introduction explains that similar-looking replacements may have different thread forms; this matters for crankcase fasteners because an incompatible thread can damage the mating case threads.

The Essential Service Tools list identifies the 60-4614 five-speed gearbox assembly tool and 61-6113 front-fork assembly tool, together with clutch extractor 61-3766 and clutch locking tool 61-3768. These are tool references, not instructions for their use.

Important safety note: Use appropriate lifting equipment for heavy engine blocks, and ensure proper ventilation when working with fuel system components.

Printable PDF and Included Pages

One printable English PDF contains 90 pages total, including 33 pages of component illustrations. The total includes the cover and title page (two pages), two dealer-stamped pages, one notes page and a four-page numerical parts index.