The intake valves on my 04 have zero clearance even with the smallest shims available. I'm trying to replace the valves, but I'm not sure what material the valves/seats I'm replacing are. I originally assumed they were the stock Ti valves, but when I pulled them, they seemed to have a good bit of weight to them. I tested them with a magnet, and it sticks like glue to both the valve and seat. To my knowledge, titanium is non-ferrous and non-magnetic; this leads me to believe they are stainless. I'm not sure even sure what metal the stock seats are. I was under the assumption that once the switch was made to stainless, the problem of destroying intake valves was pretty well taken care of. I have a feeling that this bike was treated like shit before I bought it locked up though, so that probably has something to do with the zero lash even if they are stainless. In short, are the stock seats and Ti valves magnetic, or am I working with magnetic stainless? I'm just trying to throw in a new set of valves just to get the thing running and do the customizing later, but I'm not sure what to even put in there for the temp fix. Thanks.