Valve/cam timing on an 87' XR200R

Question

Can anyone give me some info on setting "timing and clearances" on an 87 XR200R. I took it apart down to the piston and put it back together not knowing that I had timing and clearances to check. So I have to do it all again and hope I didn't bend valves or something. I know it would be of great help to have a shop manual, but unfortunately I don't have one.

I've done a lot of reading to try to make sense of repairing a bike, but this timing stuff is confusing me. So if anyone could give a newbie some info on what exactly I'm supposed to be adjusting regarding clearances and valves and what not that would be great. I don't know where to find timing marks, I looked on the cam sprocket but I don't see marks unless they're on the flip side and I put it on reversed? Am I supposed to be setting something on the sprocket, or the cams? both?

Even if nobody has info on my specific model, some general guidelines would be helpful too..

Thanks

Answer 1

The shop manual is best. Be sure to back off the timing chain tension-er before removing the head and leave it loose until the head has been reinstalled. From experience, I trashed a Honda 100 head by not doing this.