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I consider that the return is filtered for avoid filter work in opposite way

Update: I sent the cylinder head to the deck, they removed 0.05mm. I reassembled the engine and then on the bike.

If when you turn on the ignition the engine warning light flashes somewhat intermittently, that corresponds to an error, and you can check if it does and which error it corresponds to. There is the rollover sensor, it could be stuck in the condition as if the bike was lying on the ground. It is...

Do you think there are other critical issues that I should check?

Each case is comparable, perfect With "to deck" do you mean material removal machining?

Yes get I you, I'm not happy too. They also suggest: The depth of the surface damage is irrelevant for the function of the engine as the seal compensates for such surface damage. However, it is recommended to lightly rub the affected areas with sandpaper and to remove the possible edges. Ok...

I bought the part code 93836020033 HEAD CYLINDER WITH CAMHOLDER (as new part), the one i received is dated 2021. I have attached a couple of photos for what the surface condition of the head looks like. I asked the KTM parts supplier for clarification, sending the photos as support, I was told...

Hi, look at this link https://www.competitionwerkes.com/products/wkt390

I read about the 10 mm thread drilling on the two holes without dowel pins on the cam chain side. Is it a must? If yes, you think I can do it by myself?

Hi, I'm interested and I hope for a happy ending rebuild for @TVann and @projek7r , I'm in the same too. Where to get hardened head studs and nuts?

Hi, I'm new here. I own a late 2016 RC 390 since of half 2018. I have left it in the garage since January 2020, when the engine stopped working. Cylinder head and the cams are damaged, perhaps the cause was the head gasket. Now after a long long time I am looking to repair the bike definitively...