Re: Tracking down a knock
This one is a hard one. I see you have a 2002. So without hearing the noise I can't tell you if it is normal or not. The vulcan vtwin engines are a bit noisy, and you can hear the lifters.. You may also need to adjust the cam tensioners..sometimes they stick.
The clutch growl/coffee grinder noise is normal. You can eliminate that by replacing the clutch places and clutch springs with better ones. That is about $100 in parts and less than two hours of your time to do that.
Best bet is to find a vn750 rider in your area and listen to their bike to see if it sounds any noiser or less than yours.
Alright Already, Lets Ride!!