mogie
XS400 Enthusiast
So I just picked up two xs400's yesterday, a beautiful red, bone stock 81 special II with 7000 miles for 600 bucks that the guy just put two brand new tires on. Hasn't been on the road since tires went on, and a black 82 heritage special with 19000 miles for 200 bucks, a little rough but runs, drives and is inspected till may. The thing is, the black one sounds as though there is tapping up top on the left side but only at idle. Once the revs climb just a couple hundred rpms it goes away. I thought i saw something in one of the manuals about an oil inspection bolt on top of the heads. Is this where i should start? Any ideas, thanks