MK2 rebuilt couple of years ago been coughing and spluttering in the 2500 to 4000 rev area so thinking needles or crappy carbs stripped them about 4 times always clean,used sea foam direct and in tank ,no effect search internet which only came up as emulsion tubes until one day a road tester (cant find link now) was talking old bikes and said of TDMs checking for poor running usual tube/needle OR if its had a Dynojet kit fitted? I seached internet and Carpe but nothing came up,I have a second MK2 which sounds and ran the same so I thought it was normal ish,second MK2 needed fairing and tank from the other to finsh off but as it ran the same didnt help with the Dynojet thing.Then one day sitting staring at the two bikes suddenly rememberd I also used No 1s carbs,so I swapped the carbs for a stock set and guess what feckin thing runs nice now.Now when I search on here theres loads of stuff on Dyno kits so must have fecked me search up.
So just adding my findings if they help anyone.
Dynojet kit did pull better in the 60 to 80 bracket opps sorry ment to say 50 to 70 but apart from that cant feel any differencs realy.