Hi,

I'm in Australia and I've decided to rebuild my A12 since the valve stem seals are starting to leak.

I plan on getting the cam reground, porting the head, high compression pistons, roller rockers, better valve springs, polished crankshaft, port matching and milling the head. The motor already breathes through 4 Mikuni BS34's and 4-1 extractors fired by an electronic distributor.

Now most of the rebuild stuff is pretty easy...such as bearings, seals, springs, rockers and regrind. But what has me stuck are the pistons.

What is there going in the way for high compression pistons+rings for an A12? Any Australians here managed to find any? Any links to websites?

Thanks for anyhelp.

These guys have all you need:

http://www.risebike.com/pro/english.htm

Mike in Perth has his details at the bottom of page.