What kind of engine did a 1971 Triumph Bonneville have?
The 1971 Triumph T120 was a completely new design for its venerable manufacturer. Only the 650 cc engine was carried over from the previous year’s model. Bonnevilles were great looking, speedy and handled well. I was riding motorcycles in that era and I remember lusting after this bike, though I could never afford one.
What are the most common problems with a Triumph Bonneville?
1 Downshifting Problems 2 Starting Problems 3 Loud Squealing Brake Pads 4 Exhaust Popping On Deceleration 5 Cam Cover Gasket Oil Leak 6 Corrosion Issues
Why does my Triumph Bonneville bike start cold?
EFI solved that problem, but the bikes with carbs were jetted very lean from the factory which is the main cause of this cold starting problem. There is/was a lot of chatter on the internet about re-jetting in the years following the introduction of the Bonneville.
What to do when one cylinder starts on a Bonneville?
I suggest when it starts on one cylinder turn it off and check the spark plug that’s cold. Look to see if it’s wet or dry. This one cylinder starting seems to be common as my Bonneville and those of my friends all have the same problem – especially if it it’s cooler weather and has sat for a week or so.
What was the year of the Triumph Bonneville?
1971 was not a premium year for the Triumph Bonneville. It started with great promise, with the biggest redesign since the motor and transmission were made into one unit. The really large news was the new frame which carried the motors oil. Problems started almost immediately for the ‘71.
What was the problem with the 1971 Bonneville?
Problems started almost immediately for the ‘71. A brand new computer system led to parts shortages and very limited assembly numbers early in the model year. Once the frames were delivered the production line found that the motor couldn’t be inserted into the frame without removing the rocker boxes first, causing more delay.
How is my 1971 Triumph Bonneville 650 bike?
TIRES NEED REPLACEDTHEY ARE WEATHER CRACKED AND WOULD NOT RECOMEND RIDING FAR ON THEM. BIKE STARTS 2ND OR 3RD KICK. THE EXHAUST LOOKS TO BE ORIGINAL .THERE IS SLIGHT SURFACE RUST ON THE WHEELS AND FRAME. PAINT IS IN REAL GOOD CONDITION NOT SURE IF ITS ORIGINAL OR NOT.
Is the 1972 Triumph Bonneville T120 a mistake?
A 1972 Triumph Bonneville T120 in pretty poor condition. I now think that it was a mistake, not the bike but the price I paid. However I learned so much doing this bike, and developed so many new skills and ideas that it was really a good investment.