• Model: Twenty One
  • Manufactured by: Triumph
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Triumph 3TA Twenty One 1963-1974 Workshop Service Manual PDF Download

The Triumph 3TA Twenty One was a British motorcycle produced by Triumph Motorcycles from 1963 to 1974. It was a popular choice for both commuting and touring, and was known for its reliability and performance.

The 3TA Twenty One was powered by a 350 cc air-cooled parallel-twin engine, which produced 21 horsepower at 6,500 rpm. The engine was mated to a four-speed gearbox, and the bike had a top speed of 85 mph.

The 3TA Twenty One had a number of features that made it a popular choice for riders. These included its comfortable riding position, its easy handling, and its low maintenance requirements.

The 3TA Twenty One was discontinued in 1974, but it remains a popular classic motorcycle today. It is a reliable and fun-to-ride bike that is perfect for both commuting and touring.

Technical Specifications

  • Engine: 350 cc air-cooled parallel-twin
  • Power: 21 horsepower at 6,500 rpm
  • Torque: 20 lb-ft at 5,000 rpm
  • Transmission: Four-speed gearbox
  • Top speed: 85 mph
  • Fuel tank capacity: 4.5 gallons
  • Seat height: 30 inches
  • Weight: 350 pounds
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Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Workshop Service Manual for Repair.

This PDF service manual contains 258 pages.

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This Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 service manual provides data, characteristics, instructions and methodology to perform repair interventions on the vehicle and its components.

This manual includes special notes, important points, service data, precautions, etc. that are needed for the maintenance, adjustments, service, removal and installation of vehicle components for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
The most detailed, comprehensive step by step procedures, explanations, and pictorial diagrams from bumper to bumper you will ever see for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.

Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Service Repair Manual meets all your information needs to repair or make some adjustments to your Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Service Repair Manual. This manual is intended as a handy, easy to read reference book for the mechanics and DIY persons. Comprehensive explanations of all installation, removal, disassembly, assembly, repair and check procedures are laid out with the individual steps in sequential order.

Detailed illustrations, exploded diagrams, drawings and photos guide you through every service repair procedure for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Service Repair Manual.

Adjustment and repair operations include reference to Service tool numbers and the associated illustration depicts the tool for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974. Where usage is not obvious the tool is shown in use.

This Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 service manual can be viewed on any computer, as well as zoomed and printed.
This service manual has been specially prepared so that the explanation is very simple. It has been prepared so that if this manual is thoroughly read, even comparatively new personel can give satisfactory after services to the customers as well as disassemble and maintain the vehicle.

All service and repair instructions included for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
Always use the correct special service tools or equipment specified. Under no circumstances use makeshift tools or equipment since the use of substitutes may adversely affect safe operation.
Where accurate measurements are required, they can only be made using calibrated, precision instruments.
Providing that the service schedules are respected, the customers can be sure of obtaining the maximum satisfaction and best result from his car. This manual provides general descriptions for accomplishing service and repair work with tested, efective tehniques. Following them will help assure reliability.
Information on the construction and function are included. This part should be understood before proceeding with troubleshooting, disassembling and servicing. Information on the troubleshooting, servicing specification lists, tightening torque, checking and adjusting, disassembling and assembling and servicing which cover procedures, precautions, factory specifications and allowable limits.
Information in this manual for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 is divided into groups. These groups contain general information, diagnosis, testing, adjustments, removal, installation, disassembly, and assembly procedures for the systems and components. Appropiate service methods and correct repair procedures are esential for the safe, reliabe operation of all motor vehicles as well as the personal safety of the individual carrying out the work.

The illustrations in this manual are used to highlight the fundamental principles and procedures of basic interventions. They may not show exactly the Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 in your possession.

Adjustment and repair operations also include reference to wear limits for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974. Relevant data, useful assembly details all in this SERVICE MANUAL for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
In order to perform the work efficiently and to avoid costly mistakes, read the text and thoroughly familiarise yourself with procedures before starting work.
All work should be performed with great care and in a clean working area with adequate lighting.

Please peruse and utilize this manual for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 fully to ensurea complete repair work for satisfying you or your customers by keeping their vehicle in optimum condition.
All information, illustration and specifications contained in this manual are based on the latest product information avaiable at the time of publication approval. The specification, maintenance and other information for the components are included, and diagnostic information has also been added where necessary. These torque values are intended for use in service assembly and installation procedures using the correct OEM fasteners. When replacing fasteners, always use the same type (part number) fastener as removed.
This Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 book outlines procedures for servicing and repairing vehicles using safe, effective methods. The procedures contain many NOTES, CAUTIONS and WARNINGS which should be followed along with standard safety procedures to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.

To maximise the life of your Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974:
Accurately follow the maintenance requirements of the periodic maintenance chart in the service manual.
Do not allow problems to develop. Investigate unusual noises and changes in the riding characteristics of the Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974. Rectify all problems as soon as possible (immediately if safety related).
Use only genuine Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 parts as listed in the parts catalogue.
Follow the procedures in this manual carefully and completely. Do not take short cuts.
Keep complete records of all maintenance and repairs with dates and any new parts installed.
Use only approved lubricants, as specified, in the manual of the Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.

This manual for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 has been issued to provide you with technical information regarding the design, function, disassembly, adjusting work and troubleshooting on the components and model of the Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
The descriptions are brief but precise and are supported by photographs, notes, drawings and schematics, as well as exploded and sectional drawings. All this information is intended to simplify any necessary repair work which can be performed on Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
This manual also contains information about adjusting work and valuable reference data for such adjustment values.
For all maintenance and repair work on Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974, all accident prevention guidelines must be strictly observed. To perform all repairs listed in this manual, a complete set of standard tools, as well as the special tools and fixtures shown and listed are necessary.
No special emphasis is put on replacing sealing components as we assume that these items are replaced during any repair. Unless specific values are given, all threaded connections should be tightened according to the required tightening torques listed on torque charts.
When describing work, which can be dangerous, we have described the required safety measures in this manual and indicated them by special remarks DANGER, CAUTION or NOTE.

This Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Service Service Repair Manual QUALITY manual is 100 percents COMPLETE and INTACT, no MISSING/CORRUPT pages/sections to freak you out!

This Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Service manual is known in many names:
Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Service service manual.
Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Service repair manual.
Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Service workshop manual.
Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Service shop manual.

This manual for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 is designed primarily for use by trained technicians in a properly equipped workshop. However, it contains enough detail and basic information to make it useful to the owner who desires to perform his own basic maintenance and repair work. The work can only be carried out if the owner has the necessary hand and special service tools to complete the job.
A basic knowledge of mechanics, including the proper use of tools and workshop procedures is necessary in order to carry out maintenance and repair work, satisfactorily.


GENERAL TAGS FOR MOTORCYCLES:

SPECIFICATIONS for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
VEHICLE IDENTIFICATION NUMBER (V.I.N.) for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
WHEELS for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FRONT WHEEL for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
REAR WHEEL for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
TIRES for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FRONT BRAKE MASTER CYLINDER AND HAND LEVER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FRONT BRAKE LINE for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FRONT BRAKE CALIPER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
BRAKE PEDAL for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
REAR BRAKE MASTER CYLINDER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
REAR BRAKE LINE for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
REAR BRAKE CALIPER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FENDERS for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FRONT FORK for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FORK CLAMPS: UPPER AND LOWER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
STEERING HEAD BEARINGS for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
SWINGARM AND BRACE for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FRAME for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
REAR SHOCK ABSORBER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
THROTTLE CONTROL for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
CLUTCH CONTROL for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
HEADLAMP ASSEMBLY AND SUPPORT BRACKET for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FOOTPEG, HEEL GUARD AND MOUNT for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
SPROCKET COVER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
BELT GUARDS. for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
INTAKE COVER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
SIDESTAND for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
SEAT LOCKS for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
ENGINE for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
ENGINE REMOVAL for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
ENGINE INSTALLATION for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
CYLINDER HEAD for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
CYLINDER AND PISTON for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
LUBRICATION SYSTEM for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
OIL RESERVOIR AND OIL HOSE ROUTING for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
OIL COOLER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
OIL PRESSURE INDICATOR SWITCH for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
CRANKCASE BREATHING SYSTEM for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
OILING SYSTEM for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
OIL PUMP for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
HYDRAULIC LIFTERS for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
GEARCASE AND CAM GEARS for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
CRANKCASE for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
AIR CLEANER ASSEMBLY for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
ELECTRONIC CONTROL MODULE (ECM) for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
THROTTLE POSITION SENSOR (TPS) for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
IGNITION COIL for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FUEL TANK for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
FUEL PUMP for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
THROTTLE BODY for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
EXHAUST SYSTEM for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
STARTER for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
IGNITION SYSTEM for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
IGNITION/HEADLAMP KEY SWITCH for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
SPARK PLUG CABLES for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
CHARGING SYSTEM for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
BATTERY CABLES for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
VOLTAGE REGULATOR for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
ALTERNATOR for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
TURN SIGNAL FLASHER, FRONT TURN SIGNALS, REAR TURN SIGNALS for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
HEADLIGHT, TAIL LAMP for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
MAIN FUSE AND FUSES for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.
WIRING DIAGRAMS for Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974.

AND MORE...

Triumph 3TA Twenty One 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 Workshop Service Manual for Repair.