llordlloyd

Thanks mate I'll keep looking. I have an 'ace top end (sold as in good condition but actually looks fairly knackered, I'm in a remote area), so I'm thinking I can perhaps rebore and use the 'ace barrels though I might have to shorten them to get the stroke/compression right. I'll continue trawling the exup sites, thanks for the reply.

Hi all, Not wanting to pay the $2000+ dollars that it will cost me for Yamaha parts to rebuild my smokey YZF750, I want to use the Wiseco 1040cc big bore kit. Wiseco used to list a kit for the YZF750 but not any more. My question is this: is the FZR1000/Thunderace piston kit compatible with the YZF? I am suspicious that there might be some pitfall (inadequate oil pump capacity perhaps), since Wiseco would surely just add 'YZF750' to the list of bikes the kit can be used on. Alternatively, are there any US Yamaha dealers willing to post to Australia? Thanks!