Rightly deduced Roy -most of the internals valves/rockers/all timing gear -bar Crank/piston and pump were missing, cases etc...
Did put 105's in there, do give the 500 some pep! Works fine with the full exhaust system -but maybe too little for the 833 given how it's designed- starving it...
Oddly have some MK2's re-stellited by Gary Robinson, bought and not yet used (that hoarding thing again), pressed them in to a cam wheel, but no indicator marks, so will need to use Vibrac's method of valve timing? As said lined them up one evening for detailed scrutiny, do like to know why things work. They show slightly harsher exit ramps than the 105, but barely ..mind you, there seems to be some inaccuracy between sets and years/makers - read that somewhere... but worth doing some research certainly, Danny Quirk Roy?
Do think your hunch is pretty spot on -what any of us would do with/to a development engine, run the cams as high as you can, see what you can squeeze out of them, weld-reprofile-test, and again, again ... to the point just short of catastrophic engine failure on each run...its a development engine not the final bike -disposable. Eddie did mention that it had well and truly been run in ...can only imagine! (do have some new rings for it).
Be happy to weld a drill bit on the end of a shaft and open up that exhaust, if I could find a cam that developed usable power -reliable and progressive. Rode a mates CBR thou two years ago now, gentle as you like, well behaved but limitless top end...and acceleration..goodness me!
Presently there's a balance to be struck between -starting and running
Now I really apologise for this next pic on a Vincent forum -Thing 1 and 2 ...(did turn up to the glos rally once on the 1100
)- loved that 1100 Factory Yoshi tuned kat, had every mod, VM33's, welded int/ext, crank/basket, etc......hooligan machine, race/sprint tuned but no good on roads, didn't like sub 50mph at all, so really challenging, could never relax on it and enjoy the view, trying to catch you out all the time, just pointed it and held on, corners -ha! nope, total killer... Thing 2 the 750 in the foreground was in comparison a total poppet, Yoshi cams like it's bigger sibling, quick but never felt it was driving, lighter and could throw it about -and to get to a similar usability with this bike, which is light for it's potential power I suspect, would be a real achievement..have no intent on pulling wheelies these days intentionally or not.
Usable power -if we move to MK2 cams or ones better suited to the machine possibly? Need another development engine!! Or at least a rolling road maybe? If that means opening up the exhaust too (i'm ok with audible warnings for other motorists) -make starting more challenging though?
Will run the 105's with higher revs and see what it does on the road, might be ok, just don't know ? Think the opening of the advance will make a big difference-off for a week, but when I get back we'll give it a go...
