Quick Timing Question
My '97 has become noticeably louder over the past 300 miles, vibrates a bit more than normal, and has developed a noticeable valve rattle (at least I think that's what the sound is). I figured it was a good time to learn how to check and adjust valve clearance. When I removed the valve cover and turned it to TDC, I noticed that the cam shafts were out of time. The arrows are not level with the head rim. They are pointing a few degrees down of flat when the window shows 'T' (they're a bit ahead of the crank). I am wondering, what might cause the camshafts to lose their timing? I recently had a camshaft journal cap break which was magnificently repaired by Eagle Mike. When I reinstalled the cap, the cam shafts were correctly timed. I also followed the proper tightening sequence for all four caps and used a torque wrench. The bike seems to be running fine, just making more noise than usual. I've taken it on many mountain roads and it has plenty of power. I've also only had the bike for about 400 miles so I have very little to compare it's current state to.
Just curious how or why that would happen and how I can prevent it in the future. My next steps are to correct the timing on the camshafts, check valve clearance, and make the necessary adjustments.
Thanks for any input you may have.