Originally Posted by switch
Cheer mate. One question for ya: what's with the Mikuni carb? You're saying you're replacing it? Why? AFAIK it was supposed to be an upgrade to the stock one.
If you plan on improving in addition to restoring, you might want to check on GSMark's Oil Cooler thread. He's making XR 600/XL650/NX650 oil cooler kits! From what I've seen the stuff is as good as any OEM or aftermaket part, if not better.
Thanks Switch! For now I'm going to hang onto the Mikuni and see how that will pan out after I get the motor rebuilt. Thanks for the info on GSMark's oil cooler. I've been reading quite a bit about about oil starvation in the XR600 head and that mod sounds like the way to go!