https://www.motorcyclenews.com/news/202 ... ue-update/
“The issue affects a small percentage of 790 Dukes and 790 Adventures sold between 2018, 2019, 2020, alongside a small quantity 890 Dukes and 890 Adventures in 2020,” Valentini continued.
“Of around 55,000 sold over three years globally, there are around 250 bikes with confirmed cases – or about 0.5% of the models sold. There are no known issues with other models, or with current iterations of that platform.
“Although it’s been dubbed a camshaft topic, it isn’t as the root cause is the finger followers. Following investigations over the last few years, we found that the width and the tolerances in production of the finger followers weren’t wide enough and could potentially cause excessive wear on the camshafts.
“As of 2020 we implemented a wider finger follower and a new improved DLC coating and this solved the issues,” the KTM spokesperson continued.
“In addition, there were some issues with debris from production processes in the oil duct that lubricates the cylinder head, and in very rare instances there could be excessive wear from a lack of oil lubrication. To solve that, we inserted a unit to keep that oil duct clean.”
(tämä rivi oli varmaankin lehden oma lisäys)Anecdotal reports, however, suggest some later 790 and 890 models, as well as Husqvarna’s Norden 901 range may be affected.
According to KTM, the issue is said to develop over a prolonged period and is said to be accompanied by a noticeable decrease in performance, alongside additional noise coming from the engine and the cylinder head, along with starting difficulties. Owners who experience these symptoms are advised to contact their nearest KTM dealer for support.
Toki tämä uutinen oli UK:n maahantuojan antama ja varmasti tehtaan markkinoinin luvalla. Ts. asia / numerot voivat olla hieman kaunisteltuja mutta kuitenkin sinnepäin. Ja varmastikin tuolla "KTM maksaa kulut" tarkoitettiin tässä yhteydessä UK:ta.When asked about the possibility of a recall, Federico Valentini went on to say: “As the number of machines affected was so small, we could only deal with it on a single case by case basis, especially with the fact that it isn’t a safety issue.
Ehkä joku toinen valmistaja pitäisi 0,5 % vikataajuutta jo paremminkin korkeana kuin matalana, kun kyse moottorinosasta jonka oletetaan kestävän pyörän "eliniän".

