yer i have been studying that ign, im not sure he chose it cause it fits or because there easy to buy. he would have still stuffed about getting the taper on the rotr changed, but saying that why not a YZ80 or a Cr 80 etc ? whats the draw card, the bulky flywheel and weight.
interesting any way. what i dont get is why he would think its a good thing that he ground off all the Engine numbers, i know where he bought the nos clutch etc from, so im even begining to think its RT1 morphed with YZ stuff to create a rebuild YZ motor with the obvious YZ stuff fitted. id be interested to find out if that gearset and crank are YZ and from that motor.... or