a few years ago I was organsising a day at Bruntingthorpe proving ground, this would have taken the form of several "top speed runs" using two way calculations and a mobile dyno, none of the reprobates that talk about power ,torque and top speed were prepared to put there bikes where there big mouths are and so the day floundered, IIRC, there was a need for 40 or so attendees on the day to break even, I didnt even get 8! and that included me.
CLEM
Hi Clem, I posted my dyno charts several times here, can send them to you if you want. I have nothing to hide. ;-)
But I agree, that most of the Laverdas that their owners claim to have "top performance" have not proven to be delivering on what the owner claimed. When my brother had a workshop 25 years ago, he offered every owner of a Motorbike to make two dyno runs for a special price, before and after the bike was maintained by him. Many of them agreed to it "allthough the bike runs fine and I expect nothing to be found wrong". How wrong they were... Many of the Triples hardly put out more than 60 HP... Ignition setting wrong, Carbs dirty and miss-adjusted, sometimes even the cams were one tooth off, not to mention about valve clearence etc. etc. etc. Ask Piet, he could write books about how badly maintained many of the Laverdas are...
Michael, an electronic engineer and Laverda-owner since 30+ years who worked professionally on Motorbikes for a while at a well known Laverda-dealer, once rode my Jota. He had a nice red/black smoked Jota himself which he made long distance tours with and was very happy about the performance and was sure that the motor was "one of the strongest" he had ever ridden. I offered him a testride on my Jota. He was gone for more than one hour and I already thought he had issues with the bike, when I heard him coming back. I went outside where he stopped the bike but remained sitting on it, motor off. He looked down to the instruments and did not react when I was talking to him. "Are you OK?" I asked and after some seconds, he looked up to me and said: "What the hell is that, please!?!?"
We discussed a while about what modifications had been done and I heard a while later, that he had taken his motor out and opened it up to see what's wrong. IIRC, he found Yamaha Pistons with way to low compression and some other "gimicks" in the engine from a "tuner" called Claus N. ... The engine must have had barely 60 HP if ever... No wonder, he was totally surprised by my bikes performance, which is not the strongest Laverda in the world, but a nice, rideable and well sorted bike with a bit more performance than standard. Well, almost twice as much HP than what his bike actually put out, so...