1982 TRIUMPH BONNEVILLE


1982 Triumph T140 Bonneville Royal Wedding Edition, Triumph motorcycles

1982 Triumph Bonneville T140LE Royal Wedding Edition. Starter drive is visible at rear of timing cover.




MODEL DESIGNATIONS
As the skies continued to darken at Triumph Motorcycles, the resourceful fellows at Meriden Co-op needed to come up with ever new ways to dress up the same old antiquated design. They had hit on the concept of Limited Edition Specials with the 1977 Triumph T140VJ Bonneville Silver Jubilee, which was a minor hit for the cash-strapped company. They did it again in 1979 & 1980 with the Triumph T140D Bonneville Special. In 1981, there was the Triumph Bonneville Executive (a touring model available with electric start (T140ES) or kickstart-only (T140E), and the T140AV (Anti-Vibration) intended & being evaluated for Police work. Now, for the 1982 Triumph Bonneville, the theme for their new bike fell into their laps. Prince Charles, Duke of Wales, and Lady Diane Spencer were wed & Triumph built yet another limited-edition motorcycle to commemorate it, the 1982 Triumph Bonneville T140LE Royal Wedding. The T140E ("E" for Environmental, kickstart-only), the T140ES (electric starter) & the Bonneville Executive were still in the model line-up for 1982.

ENGINE CHANGES
Engine changes were purely cosmetic, and only on the T140LE Royal Edition, which was blacked out with the tips of all alloy cooling fins cut & polished. What few T140LE Royals reached the US did not have blacked out engine cases. Several variations on the Royal Wedding black-out paint scheme went to different markets, some with black tanks, some with chrome, some with silver frames, some with black. US models continued to use Bing CV carburetors, while UK versions continued to use Amal MkII Concentrics.

RUNNING GEAR
Marzocchi rear shocks now replaced Girlings as supplies ran out. Cast wheels were now made by Morris (Lester made them prior), already optional, now standard on all ES models. The Triumph T140ES Bonneville became known as "Electro". Alloy Lockheed brake calipers replaced the prior iron units on smaller 9.8" diameter rotors. Twin front disks became standard on Executives & optional on all other models.

1982 Triumph T140 Bonneville Royal Wedding Edition, Triumph motorcycles

The 1982 Triumph Bonneville T140LE Royal Wedding Edition celebrated the wedding of Prince Charles & Lady Diana Spencer.

1982 Triumph T140LE Bonneville Royal Wedding Edition, Triumph motorcycles

The 1982 Triumph Bonneville T140LE Royal Wedding Edition came with 7-spoke cast Morris 'mag' wheels & twin front disk brakes. Different markets got different paint treatments. Here fork legs are black, but outer engine cases are polished.

1982 Triumph Bonneville, Triumph Bonneville T140ES, Triumph Motorcycles

1982 Triumph Bonneville T140ES with electric start, in Smokey Blue paint.


1982 TRIUMPH T140W BONNEVILLE TSS

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

TRIUMPH T140W BONNEVILLE TSS - BORN OF ADVERSITY
By 1982, the handwriting was on the wall for the Meriden Coop and their efforts to build the Triumph brand. Financially, they were out of money, and all efforts to find backers or government-secured loans or credit lines had failed. They literally didn’t have enough money to buy all the parts needed to finish many of the motorcycles they were producing. Bikes sat in the back, short a headlight bucket or an exhaust pipe, only to be cannibalized of parts to complete another bike. In this desperate environment, despite all the adverse pressure, the scrappy Brits continued to come up with bold new ideas that would work with their existing tooling and on their shoestring resources. It was here that they came up with the radical new TSS, in one last desperate attempt to create a winning model to do battle with the Japanese.

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

1982 TRIUMPH BONNEVILLE TSS - SOMETHING DIFFERENT
The engineers looked at what they were lacking in the current Bonneville design as compared to their Asian rivals. The Bonnie was underpowered, and when wound up high enough to extract some power, it vibrated viciously. Of course, a totally new design was called for, along the Japanese model, all-aluminum, horizontally-split cases, OHC or DOHC, multiple cylinders, etc. But alas, the money simply wasn’t there to do a ground-up new design, let alone the new tooling. So, they came up with a way to work with what they already had, the venerable old 650/750 vertical twin pushrod engine. Outside engineering firms like Rickman and Westlake were working on new top ends for the Triumph twin that included 4 valves per cylinder in a pent-roof combustion chamber. Early tests looked promising, with big gains in power and smoothness. So, Triumph adopted a version of the Westlake setup and the TSS was born.

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

1982 TRIUMPH BONNEVILLE TSS - SPECS
The new 8-valve top end started with a steel-lined allow cylinder block, on top of which sat an all-new alloy head with 4 valves per cylinder (hence the 8 valves) in a pent-roof combustion chamber, a big departure from the hemispherical combustion chambers on the standard Bonneville. The spark plugs were in the center-mounted in the combustion chamber, between the 4 valves, with the plugs angled outwards slightly, for easier access. Compression Ratio was 10.0:1. A new crankshaft was forged in one piece (the standard crank had a removable center flywheel), with larger diameter big end journals. It was very strong, and smoothed out the vertical twin as never before. The bore and stroke dimensions (76mm bore X 82mm stroke) remained the same as the standard Bonneville, so the displacement remained unchanged at 744cc (750). However, the new connecting rods were offset slightly, allowing the cylinders to be spaced farther apart, to make room for the more complex valve gear, and to provide better cooling. Twin 34mm Amal MkII carburetors fed the engine on UK models, but export models (including the US) got Bing constant velocity carbs instead, much to the better. There was also a new high-output 3-phase alternator. And, like all 1982-83s, it had electric start.

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

1982 TRIUMPH BONNEVILLE TSS - A UNIQUE LOOK
The new top end looked quite different from the standard Bonneville, but was still recognizable as a Triumph. Honestly, I thought the standard Bonnie had the better-looking engine, but the TSS certainly looked exotic, and very exclusive. Only a very few were built by the struggling Meriden Coop at the end of their days, whereas run-of-the-mill Bonnevilles and TR6s and TR7s were quite common. The TSS top end seemed small and rather featureless compared to the shapely Bonneville engine. The new TSS engine was blacked out in satin black, with the tips of the fins polished. Morris alloy “mag” wheels were standard, themselves blacked out with polished accents, with Lockheed dual front disk brakes. All TSS models, for all markets, came with the same tank and bars, unlike the former custom of fitting US-bound bikes with smaller “teardrop” tanks and high bars. Every TSS had the Italian-made 4-gallon tank and low European-style bars.

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

TRIUMPH BONNEVILLE TSS PRODUCTION VOLUME
Far from being the machine that saved Triumph, only 438 TSS models were ever built, between the 1982 and 1983 model years. Of those, only 112 were imported to the US. A very rare bird, indeed. The TSS showed real promise, and a hope finally fulfilled of a Triumph with modern-day performance, and without all the vibration. It was finally here! But alas, it was too little too late. The Meriden Coop was on life support by this time, and just a trickle of machines were being built, by this time. The TSS, with so few examples built or seen by most enthusiasts, faded into obscurity as the entire Triumph brand slid off a cliff in 1983.

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

TRIUMPH BONNEVILLE TSS PERFORMANCE
While its difficult to nail down a precise horsepower or torque output for the 8-valver, there’s no question it produced much more horsepower than the standard Bonneville, could wind higher, and did so without all the typical vibration. Jon Minnono, riding for Jack Wilson’s ‘Big D of Texas’ Triumph dealership, was clocked at 152mph in practice at Daytona in 1982. But the TSS was about more than just top speed and exemplary handling (a Triumph hallmark), it could also accelerate like a scalded cat. During factory tests, Jock Copland was repeatedly knocking off 13-second quarter miles at 102mph or better. The street machines had a real top speed of 126mph.

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

82 triumph bonneville tss, triumph tss, triumph bonneville, triumph motorcycles

1982 TRIUMPH T140W BONNEVILLE TSS - INTERNATIONAL PARTS BIN
Where earlier Triumphs came equipped almost entirely with British-made hardware, by this time Meriden was having trouble paying its bills and so had to find other suppliers. They went all over Europe and the US to find the best deal on the parts they needed, with easy-payment terms, and who didn’t care that they may never see their money. The Morris cast alloy wheels and the Lockheed disk brakes were from the US. The Marzocchi rear shocks, the tank, even the petcock were all from Italy. The gauges came from Veglia in France, and the mirrors, choke lever and turn signals were all from Germany.


1982 Triumph Bonneville SPECIFICATIONS:



MODEL DESIGNATIONS:
1982 Triumph Bonneville T140E..................... Standard
1982 Triumph Bonneville T140ES.................... Electric Start
1982 Triumph Bonneville T140LE.................... Royal Wedding

ENGINE:
Engine type....................................... OHV vertical twin
Horsepower at RPM............................ 49 BHP @ 6,200 rpm
Bore................................................ 76mm / 2.79"
Stroke............................................. 82mm / 3.23"
Displacement.................................... 744cc / 40 cu. in.
Compression Ratio............................. 8.6:1
Valve Clearance (cold):
Inlet................................................ 0.05mm / 0.002"
Exhaust............................................ 0.10mm / 0.004"
Valve Timing:
Inlet Valve Opens.............................. 34 degrees BTDC
Inlet Valve Closes.............................. 55 degrees BTDC
Exhaust Valve Opens.......................... 55 degrees BTDC
Exhaust Valve Closes.......................... 27 degrees BTDC

IGNITION:
Ignition Breaker Gap............................. 0.4mm / 0.015"
Spark Plug Gap.................................. 0.50mm / 0.020"
Timing (static).................................14 degrees BTDC
Timing (fully advanced):........................ 38 degrees BTDC

CARBURETORS:
Type................................................ Bing Type 94 CV
Throat Size....................................... 32mm
Main Jet........................................... 210
Needle Jet........................................ .107
Needle Position.................................. 2
Needle Type.......................................D
Throttle Valve.................................... 2
Pilot Jet............................................ 25

TRANSMISSION:
Speeds.............................................. 4
Gear Ratios:
5th - Top........................................... 4.7
4th - Fourth........................................ 5.59
3rd - Third......................................... 6.58
2nd - Second...................................... 8.63
1st - Bottom...................................... 12.25

CLUTCH:
Type................................................ Multi-plate, wet
Number of Plates:
Drive Plates...................................... 6
Driven Plates.................................... 6

SPROCKETS:
Engine............................................. 29 teeth
Clutch............................................. 58 teeth
Gearbox.......................................... 20 teeth
Rear Wheel...................................... 47 teeth

CHAIN:
Primary, pitch.................................. 3/8" triplex
Primary, length................................. 84 links
Final Drive, pitch............................... 5/8" X .400" X 3/8"
Final Drive, length............................. 106 links

CAPACITIES:
Fuel (US versions)............................. 2.5 Imp. gal.
Fuel (UK & export versions)................. 4 Imp. gal.
Oil Tank........................................... 5 pints / 3 L
Gearbox........................................... 1 pt / 500cc
Primary Chaincase............................. 1/4 pt / 150cc
Front Forks....................................... 6.4 oz. / 190cc

TIRES:
Front............................................... 3.25 X 19"
Rear................................................ 4.00 X 18"

SUSPENSION:
Front............................................... Telescopic Forks
Rear................................................ Swing Arm

BRAKES:
Front............................................... 10" / 12.9cm disk
Rear................................................ 7" / 17.78cm SLS

DIMENSIONS:
Seat Height...................................... 32.5" / 77.5cm
Wheelbase........................................ 54.5" / 140.3cm
Length.............................................. 85.5" / 202cm
Width............................................... 28.5" / 72cm
Ground Clearance.............................. 5" / 12.7cm
Weight, unladen................................ 403 lbs / 183kg


Check out these TRIUMPH BOOKS


TRIUMPH BONNEVILLE YEAR-BY-YEAR

TRIUMPH BONNEVILLE ESSENTIAL BUYER’S GUIDE

COMPLETE BOOK OF CLASSIC & MODERN TRIUMPHS

TRIUMPH MOTORCYCLES 1956-1983

FACTORY-ORIGINAL TRIUMPH TWINS

TRIUMPH MOTORCYCLES

TRIUMPH MOTORCYCLE RESTORATION, PRE-UNIT

TALES OF TRIUMPHS & THE MERIDEN FACTORY

TRIUMPH ILLUSTRATED SHOP MANUAL, 1935-1939

TRIUMPH ILLUSTRATED SHOP MANUAL, 1937-1951

TRIUMPH ILLUSTRATED SHOP MANUAL, 1945-1955


Triumph Motorcycles
Triumph Bonneville
Triumph Bonneville, Pre-Unit Construction, 1959-1962
Triumph Bonneville, Unit Construction, 1963-1970
Triumph Bonneville, Oil-in-Frame, 1971-1983

For more Great Books, please visit our
MOTORCYCLE BOOK STORE




HOME PAGE
Triumph Motorcycles
BSA Motorcycles
Norton Motorcycles
Matchless-AJS Motorcycles
AMC-Associated Motor Cycles
Royal Enfield Motorcycles
Ariel Motorcycles
Vincent Motorcycles
Velocette Motorcycles
Rickman Motorcycles
Japanese Motorcycles
Cafe Racers
Choppers & Bobbers
Rat Bikes
Classic Racing Motorcycles
Classic Motorcycle Auctions
Classic Motorcycle Shows
Classic Motorcycle Rides
Classic Motorcycle Restoration
Classic Motorcycle Shops
Classic Motorcycle Clubs
Classic Motorcycle Photo Gallery
Classic Motorcycle Events Calendar
Send us Pictures of YOUR BIKE
YOUR BIKE Pictures
About Us
Site Map
CONTACT US
Brit Iron Back Issues
Visit our STORE
Subscribe to our FREE e-zine & get a FREE 11X17 Poster
BACK TO TOP - 1982 Triumph Bonneville


1982 Triumph Bonneville
12/1/14

free classified ads, motorcycles for sale

Check out our
FREE
Classifed Ads
BIKES FOR SALE!

facebook page, classic-british-motorcycles.com

Visit our
FACEBOOK PAGE
and "LIKE" us!


Check out these
NEW PAGES:

Triumph Tiger
1939 T100
1947 T100
1939 T100
1949 T100
1950 T100
1952 T100
1953 T100
1955 T100
1958 T110
Norton Manx
1948
1949
1952
1953
1957
1959
1963
Royal Enfield Interceptor
1963
1965
1967
1970
Vincent Black Shadow
1950
1952
1953
1954
Ariel Square Four
1932
1948
1951
1953
1955
1956
1957


CLASSIC TRIUMPHS
2015 Wall Calendar

HISTORIC MOTORCYCLES
2015 Wall Calendar
ULTIMATE MOTORCYCLES
2015 Wall Calendar

Check out all our
MOTORCYCLE CALENDARS



facebook logo, facebook page

Visit our
FACEBOOK PAGE
and "LIKE" us!