Another strange occurrence...
I've just had my Z900 head refurbished and the engineering company I'm took a 0.006" skim of the face which revealed a pattern of dots.
When tested these were found to be magnetic so are possible an array of twisted steel wires - perhaps something like a mesh former that was accidently left in the mould.
There is nothing else magnetic in the head (I checked the other side as well) other than the valve seats.
- Cyl head 2.jpg (25.4 KiB) Viewed 611 times
- Cyl head 1.jpg (19.99 KiB) Viewed 611 times
Once again I would appreciate it if anyone can cast any light on this.
Best regards,
Sean
