Hi all Yamaha XJ900f riders
Sorry to say last month I commented on XT225 pistons would fit the XJ900f
This is not quite right The XT piston is a flat top and needs to be domed
But After many months looking on the net I have found the Suzuki GS850 piston are Perfect for your rebuilds
But you will have to have Cylinders rebored I have gone for the 70mm
Have fun be safe