Hello to this forum. This is my 1st post here although I used to be subscribed to an XJ Forum back in the 90's, not sure if this has evolved from that. Here are some pics of my highly modified 650 Seca which I now call a Seca-X. I've been riding it in this final configuration since about 2001 and it has been solidly dependable. It has an XJ750-X engine with the XJ650 Seca gear change mechanism to keep the gear change appropriate for the Seca's more rear mounted footpegs. Cylinder block and pistons are 87/88 FZR1000 which combined with the X750-X stroke results in a displacement of 911cc. Front forks and wheel are FZ600, rear wheel from XJ700 Maxim. I can answer any questions if someone is contemplating similar mods.