The piston in the pics; is that a GS or one for the -D- barrel (stock on right) ?. What about the rod? ( pic #8) Also is that a 97cc Shrub on the track? The Girl on the CZ just about took out 3 bikes off the start. see at //www.photobucket.com/ktmgs100
Larry,
The piston is like one that has been trimmed on the edges for tiny booster ports. I have seen a couple of those. The rod setup looks like a GS Pro stuffed crank setup to me. It is tighter in the case area than a D or GS to me.
Larry P
Larry,
Does the Piston have a 15 mm wrist pin hole? It looks like an Iron Barrel piston. Its missing the groves below the rings. The rings look like what come on the older 125 cylinders.
I will look in my pistons tonight and see if we have one like that.
Try Leo on the Rod part # he may be able to ID which model it came from.
John D.
Yes its 15mm ,says ELKO on top . I think they are moly filled rings. I ran one of these pistons 9 years ago in a stock 125 B barrel but sold the bike it was in . The bike ran fine, this piston in the pics has ring stops in rear. Have another one of these pistons 54.25 mm has the ring stops at 8 '0 clock and 4 o'clock .
Al B's new Wiseco looks real close ; dome and the cut of the wide transfers and the trimmed bottom edges.