Regarding the 996.
- Have you checked the valves yet.
- Have you done any desmo adjustments before?
- Is your 996 free of the flaking rocker syndrome?
No, on number one, they were done just before I bought it.
Not exactly. I once fooled around some desmo heads from a 2 valver a number of years back. Maybe 20 or more. I only remember it being a royal PITA messing with the closer shims as split rings would fall out when you tried to remove them. Otherwise I didn't think it was super difficult....but not exactly easy either.
Lastly..uhhh..yes? I don't think any 996s are exempt. Nor any 916 after 1996 or so. Including any other model equipped with a desmoquattro from the same era. Monster or ST4 included.
My particular bike had 3 rockers replaced at the service before I bought it. I have a receipt for it so I know it was done. Also, when I removed the sump screen I found quite a bit of chrome and machine swarf in it. Indicated to me that it had never been removed and cleaned out.
From what the PO told me, it was just a part of 996 ownership. Ride it like hell, and replace the flaking rockers when they occur. If you worry about it, you'll never ride it, nor enjoy riding it when you do. His advice, not mine exactly.
I agree with him in principle but I changed oil often because I wanted to make sure I wasn't draining lots of chrome flakes out of my crankcase. So far, since the initial finding of the flakes in the sump screen, nothing in my oil.
Also, I don't buy into use the most expensive oil on the planet. Its a dry clutch engine. I doesn't matter what you use, so long as it is full synthetic and is of sufficient weight.
I use what ever is on sale at the auto parts store when I go so long as it is of the 20W50 variety. If it's Mobil 1, then that's what I'll use. If it's Valvoline, I use that. I'm not brand loyal when it comes to oil.
I change it frequently on the 996 because I want to make sure I catch a flaking rocker early on in the process and because of running oil that does not contain some sort of shear modifier through a transmission.
Those are my theories, and everyone has s different one. Oh, and oil threads are stupid so I don't want to turn this into one.