Broken rocker arm

[uberranger]

Another update, in case anyone is listening.

The valve was bent...I was too excited by the fact that I couldn't see anything immediately.  The intake (larger of the two) valve was bent ever so slightly, but enough that the local guru couldn't just grind it down to fit.  He said it would probably run ok, but leak some oil, blah blah blah...so I ordered a KW valve as per his recommendations.  It should be in by the end of the week, along with some new half-rings (one of which shattered during this whole debacle). 

So, barring exigent circumstances, I should be one Duck happier in a week or so.

[uberranger]

Thankfully, last update on this, if there is anyone interested. 

I took the head and new valve to the aforementioned guru, and he cut/honed/voodoo'd the valve into the head all good.  I then froze the rocker arm shaft, put the rocker arm/valve/shims all back in, checked the valve clearances (within spec...?!...) and put it back on the bike.

After setting the timing and waiting on a battery from a buddy as mine was dead, I fired it up and it sounded wonderful.  Everything seems to be alright (except that it was loud as hell because the exhaust wasn't attached all the way)

So...moral of the story is set your timing correctly.