Originally Posted by Bodge
Thank you Richard for the valve schematic, I can now wrap my head around how that thing works. The assembly is on there pretty tightly so it may have to go to Milpro for assistance. Any ideas on what a valve rebuild would cost?
Maybe give it a shot yourself first? Try wiggling the flywheel by hand. You might be able to get it to move. If it moves, you should be able to pull it free without tooling. Just remove the nut with a 10mm deep well socket. If the double-male threaded stud comes with the nut, you'll have to loctite it back in to the inner cup.
If you remove the circlip, you can pull the flywheel off and then you can see the tiny crevice between the inner & outer cup. Spray it with a little penetrating oil. Maybe hit the inner cup with a hot air gun on low heat then with some freeze spray or an ice cube to cool it down.
If you can't get it to budge, don't force it.