Fly By Wire Improvement

A street what, triple or twin? I'm guessing triple? Are you sure the 865 has a fly by wire throttle? They are very smooth these days. Any jerkyness these days is more likely down to euro 4/5 bollocks. There are various mods that can be done with the 865 like getting rid of the secondary air injection which could be a cure. I'm not that clued up on them myself. Big fan of the street triple though. I reckon it's Triumphs best machine all things considered.

 

Has it been dealer serviced recently? My 2017 T100 was fine from new but was even smoother after the year 1 service as the dealer said they installed some software updates that were by then available.

 

All I can say is my 2013 SE has no jerkiness at all. Mine has been dyno'd to suit the exhaust etc., but even before that it was quite smooth.
The dealer may not have uploaded the latest map for an 865, I wouldn't think they would even check for a 2013 bike. If it has been dyno'd then my understanding is that should be the most efficient tune for the bike as it stands, with any mods at that point. If you change the silencers back to stock you might upset the tune.

 

I have a 2022 T120 that has a 'snatchy' throttle at low speeds. Based on what I've read, it is because of the requirements of E.U. emission regulations and that a cure for it is a Booster Plug that changes the fuel air mixture at low speeds. Unfortunately for me, further changes in regulations have made this work around not available for 2021 and newer bikes. I hope this helps.

From the Booster Plug people in response to my inquiry...
"The new emission regulations that are enforced on some 2020 models and all 2021-2022 bikes are effectively blocking the BoosterPlug (and other fuel injection improvement devices) from making your bike better and safer to ride."