I believe the RSV4 uses the green Viton stem seals but it appears they were left out by either Guido or Marco when they were assembling these engines.
So much for quality control during Covid.
That is not my engine, the photos are of a '22 RSV4 that was burning about 2 liters of oil per 1000 miles, Piaggio denied warranty saying it is "normal" oil consumption ...lol. What planet are they from anyway?
The owner is having to fix it on his own dime.
I am doing an oil burn study on mine now, approaching 2000 miles since the 600 mile first oil change and have added 600 ml oil so far, will wrap it up in 200 more miles, top it off and see what I have.
Let's say I have to add another 200 ml to bring it up to the full mark. That would be 800 ml in 2000 miles or 400 ml per 1000 miles.
Not enough to get a warranty repair by Aprilia I'm afraid. Someone said to set the engine braking to highest level (3) to try and seat the rings, I have it on minimum (1) now.
One of the experienced Aprilia engine builders says he likes the stem seals a little on the loose side as they allow more oil to lube the valve guides and the guides last longer. So a bit of a trade off there.
* Last updated by: Kruz on 7/21/2023 @ 3:46 PM *
2021 Aprilia RSV4
2020 BMW S1000RR
2016 ZX-10R KRT
2016 959 Panigale Red
2015 CBR1000RR SP Repsol
2011 ZX-10R Ebony
2009 ZX-6R Lime Green
2006 ZX-14 Red
2004 VTX 1300C Candy Red
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