A service always requires a new oil filter. But, if you are rebuilding the engine, why? Could it be oil pump failure or substandard pump performance?
Close inspection will reveal any underlying, or very obvious mechanical oil pump gremlins.
So, if you require more than just an oil filter you may wish to view the components listed below:
Don't forget to order all the gaskets, seals and new bolts (just a few examples of parts you may wish to order) required in one economical shipment.
Pro-workshop gasket sealant, 08C70K0234M - to complete the job like a professional.
Please be aware that this component may have other applications within the Yamaha model range; so do check the part-numbers ordered are correct for your model.