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There are a couple Youtube videos where guys have the head off and show the flow of oil to the cams. Lots of theories. The jets that direct oil at where the followers and lobes meet are slightly offset from th channel that feeds them and that was one theory. I can't find pics to explain that...

Yeh in KTM's press release they actually added that extra screen as a fix. They claim the problem was worse in '19/'20 bikes bfore adding that screen and widening the finger followers slightly. There are SOOOOO many theories about what is causing the problem but nothing solid. I wish we could...

Hi Folks. Me again. Just thought I'd share some info. I did oil analysis at the first (yearly) service on my 2023 Husqvarna 901 (Same motor as the 890). It came back with 6% fuel dilution(!) , but the tech at the dealer who drained the oil gave me the sample in a coke bottle. I thought...

I was wondering why the bigger 1190/1290 bikes never suffered this problem....It seems the 7/890 bikes have changed from a bucket/shim tappet to finger followers, which obviously take a bit more strain as well. Thanks for the info guys. Much appreciated and I'll do some more reading.

Can someone educate me on the difference between JASO MA and MA2 spec? Would the MA2 spec product have less zinc?

KTM tend to be the "Oh wow. That sucks. Good luck!" type. They had issues with the airboxes not sealing properly on the entire 2013-2020 1090/1190/1290 line of bikes. They never resolved it after loads of people had to rebuild topends in less than 30k kms do to dust ingress. The dust thing is...

I'm also asking because I just bought a Norden 901 with the same motor as the 890. I have tried to do the 1000km "run in" fairly gently but the urge to wheelie overcame me once or twice. Otherwise tried to do fairly smoth runs up the gears, and kept it under 6500rpm mostly. I also work in the...

I also thought zinc (or low zinc) might be the issue. What is the normal friction modifier additive that can't be put in bike oils due to the wet clutch?

There seem to be a lot of incidences of early cam wear (intake lobes mostly) on the KTM LC8c engine (parallel twin 790 and 890cc). Often under 10k kms. It seems to be much more common in the ADV bikes using this engine and not the Duke. The ADV is tuned for more low end torque and the Duke for...