Have checked breather cavity, didnt look too bad in there.
I am holding off taking the valves out, I dont have a spring compressor.
I have taken valve srpings out of little engines with screw drivers.
Yes the manual I have is on a disc as a pdf file, but cant be opened without the disc in the computer, happy to post a copy to you.
[Linked Image]
[Linked Image]
[Linked Image]

Happy is he who penetrates the mystery of things.