Replacing the old O-Rings with new parts means using parts made to Japanese quality control standards. That is a pretty good base to work from!
You may wish to check out this seal:
The name and part number on the packaging is a guarantee of excellence!
Shopping here at CMS is the easy way to purchase all your Japanese motorcycle parts online. Ask a member of our staff, if you are unsure what to do, to help guide you through our user-friendly system from opening an account to ordering the parts you require.