thank you for the responce.
1.i have checked, and the piston is 58mm and has eric gore stamped in to it!!! should have checked realy
2. it has a gold weight bolted on to the fly wheel, with a spacer in the fly wheel cover.
3. the suspension? well i still dont know, it is all stock, eept the fact i have a yellow spring on the rear, with the original grey / black spring in a box of spares.
4.carb apers to be stock? same make as new, and i dont know enoguh about jetting to check if it has been palyed with.
but tahnks for the help guys
adam