I have a 02 xr650L that I just always rode in the woods till now. The previous owner put a hot cam and Q4 fmf exhaust on it. It has stock gearing 15/45. It runs great, starts in the cold, idles well, no throttle bog. But looks rich by the soot on the muffler outlet and black rear fender. I rode it out to get the title transferred yesterday since I’m putting in on the road to commute to work for the summer. First real “big” trip. About 50 miles there and 50 miles back. I ran 65-75 and pushed it up to 85 a couple times. Got about 35mpg. Is that average for a modified bike at those speeds? Seemed a bit low to me. I was hoping some people with similar mods could chime in. thanks.