Wilsons Sandbox

I ride a 89' klr600e, which until last week has provided me with a lot of riding fun! But, last week as i was running at low speed, it sounded like something 'broke' in the engine with an alarming knocking noise as the result. Naturally the engine stopped, and i had to push it back to my garage. I tried to turn the motor with the kick-starter to locate the noise, and i suspected it to come from the starter, so i removed the starter clutch/sproket, and turned the engine on. It started pretty easily but with a horrible knocking noise. Has anybody had the same misfortune with their KLR, and could anybody please provide me with some sort of advice or strategy as i am planning to dissemble the engine and replace the broken parts. This would of course be a lot easier if i knew what sort of problems i would be facing. I have the needed tool, manuals and mechanic assistance. I plan to take pictures, and write notes as go through the project, and then post a link to my findings, so interested people can follow the progress. any help would be of tremendous value for me Thanx for an exellenct group Haiko