These items suffer wear and tear over the years and miles - during valve gear train refurbishment replacing the cam-chain Guide stopper should be a default choice.
CMS - the Japanese motorcycle enthusiasts company.
Why not order all the gaskets you require at the same time - save money on shipping costs with a multiple order.
Try this gasket sealant: 08C70K0234M used by factory professionals.
Top quality Japanese engineered none-OE component.