New Moto Guzzi Door Mats Available Now
The D model was built in limited numbers , supposedly 1,000 , or something like that . At one time in the very early '90's there were three of them right here in Muskogee , go figure . I rebuilt one after it holed a piston , and did some work on one of the other two . Have the MK 2 Amals been sorted ? Dusty
A lot of people dislike Mk2's, this is my first experience with them....The bike ran well for the several short rides before the ignition croaked...I disassembled the carbs for cleaning, surprisingly not worn out like Mk1's always are..I'll Increase the main jet one size. 79 has the new style head with parallel intake ports that supposedly increase turbulence for better combustion... Triumph "detuned" the 750 using goofy cam timing when introduced in 1973 because of poor quality main bearings, prevent warranty claims....Later on, better bearings were used but I don't know if the cam timing changed for better performance. Some time spent changing the timing can really perk up mid range power. Some Brit bike guys think the muffler is original. The hair? Small brain doesn't heat up the head .....
A lot of people dislike Mk2's, this is my first experience with them....The bike ran well for the several short rides before the ignition croaked...I disassembled the carbs for cleaning, surprisingly not worn out like Mk1's always are..I'll Increase the main jet one size.
Hmm , first I'd heard the short exhaust cam timing was because of bearing issues , always thought that was done for emission reasons . Anyway , the couple of T140's I owned responded very well to 3134 exhaust cams from the older 650 . Yeah , the Lucas RITA ignition was prone to failure , in fact my friend's D model experienced that problem , I converted it back to points for him . Anyway , good luck . The one thing I might suggest from experience with that model , if it has the 4-10 front tire they came with that was the same size as the rear , they were known to shake their head at higher speed . Inflation pressures are important , although what finally fixed most of them was going down a tire size . Dusty
Dusty, if you have interest in vintage Triumph's ,you should subscribe to Vintage Bike. John Healy,well known Triumph dealer, tuner, and current major parts supplier is the editor..The magazine features articles by Kevin Cameron, Mike Duckworth and Triumph engineers ...The early 750 engine devolopment was covered in detailed, very interesting... Because my claim to fame is "the fastest naked stock frame land speed racing Triumph in the USA", some people think I know something...I don't know that much about the various individual models. In fact it's a mystery to me how the bike I built goes that fast....
Does anybody have any experience with the Amal Concentric MkII Premium carburetors? The hardened slides, Viton tipped float needles, and improved idle mixture circuits seem to address the most common complaints...
