iv only had the bike a week but i was thinking of changing the oil to Amsoil  20W-50 IN THE MOTOR & PRIMARY, & USE 75W-110 GEAR OIL for the 5 speed, what filter should i use?

thank you

brad

Quik Question here.
I have just bought an 84 Evo and the clutch makes a Slight grinding noise on take off. No probs anywhere else and its not slipping.
Any ideas?