[MarioP]

Guys, today I am an unhappy man:

Yesterday I was doing an evening session at BH (with simon748 - ciao simon) when I heard a noise from the engine and the bike shut down.

Today I stripped everything down and had an ugly surprise:

One of the valve rockers in the horizontal cylinder snapped and, after causing all sorts of damage inside the desmodromic distribution system, actually perforated the cylinder head cover!

I just do not know if the stuck valve (because of the broken rocker) also damaged the piston and the rings...

Three questions:

I had the timing belts replaced less than two months ago and when I saw them today, the tension seemed a bit too loose (approx. 10mm belt swing, measured between the two front/head timing rollers). Is the gap/swing too much? Could that have caused one of the rollers' teeth to "slip" and therefore throw everything off?

Can a rocker brake for no apparent reason?

Can you comment on Pro Team (or Twin?) as the potential workshop to do this work?

Any other comments are obviously welcome...

Ciao, Mario

[Edited on 23-6-2005 by MarioP]

[Edited on 23-6-2005 by MarioP]