S2r 800 timing belt melting/shredding

[ducpainter]

Carb? I thought the s2r was injected, or does carb mean something else? Also, a stupid question but I assume both belts need to come off? once the head is off what should I be looking for? You guys have been awesome with your help, thanks so much

Yeah sorry, it still has a throttle body.

I think to get the horizontal belt off you need to remove the vertical also.

Look to see if the valves are seating. You can pour a small amount of gas into the ports to check. There shouldn't be much, if any, seepage on a good seal.

If the valves don't leak you're golden. If they do you should remove them and check the visible part of the guide for cracks. Also, check the piston crowns for dents/dings.

[Slide Panda]

You don't need to remove both belts, the horiz is on the outside. Just make sure you remove the plug on the vertical cyl if you don't remove the belt.

[uberranger]

     I just went through this with my bike (2006 S2R 800) because I initially set the timing incorrectly.  There's a thread titled 'Broken Rocker Arm' here if you wanna look it up, I believe there are part references in case you end up needing something.

Head Removal:

     That said, you can remove the horizontal head by removing the four bolts around it.  They are some special 15MM bolt requiring a special tool.  They can be had on eBay for <$25, just make sure you get the 15MM one (the 4Vs use a different size which is also sold, I believe). 

     After removing the head bolts, you can detach the oil cooler and let it hang down (two allen bolts on either side).

     After that, you have several options.  You can loosen the intake manifold clamp and jerry-slide it out (what I did, also a pain) or take the tank, airbox, and throttle bodies off (the official/correct way).  Either way, at this stage the head comes off.

     At this point you can remove the valve covers (2 X four allen bolts, don't bother with the cam cover)  and inspect the rocker arms (broken in my case) and take the valves out (there are tricks to do this without removing the closer spring, what I did)

Replacement Parts:

     Rocker arms can be found on ebay for cheap or a lot, depending on your timing.  I've seen them for $125 a pop (still less than half what Ducati wants) or $150 for all eight (what I got)
     Valves can be had on eBay as well, though I would suggest looking at KibbleWhite (aftermarket) valves.  They were far cheaper than from Ducati, and about what a used OEM would cost anyway.  All the local gurus and internet reviews told me that they were good, and I've not had any trouble yet.  They will obviously have to be reshimmed unless they happen to match (my case).

     If you end up needing the info, I can detail how to replace the rocker arms and valve, as well as give part numbers for replacement valves from KW and rocker arms.

Good luck!

[Slide Panda]

     I just went through this with my bike (2006 S2R 800) because I initially set the timing incorrectly.  There's a thread titled 'Broken Rocker Arm' here if you wanna look it up, I believe there are part references in case you end up needing something.

Head Removal:

     That said, you can remove the horizontal head by removing the four bolts around it.  They are some special 15MM bolt requiring a special tool.  They can be had on eBay for <$25, just make sure you get the 15MM one (the 4Vs use a different size which is also sold, I believe). 

On Amazon one can find it for about $12
http://www.amazon.com/gp/product/B001DKT5LG/ref=oh_details_o02_s00_i00

[uberranger]

Ah...I forgot that the distributor tool works too.  Yes, that's a great solution.