My 1997 XR600R is a 5 gallon tank and I was trying to figure out how many liters or gallons are in the reserve tank so I can figure out how many miles I get on the reserve. I was riding it off jumps and heavy throttle for the past few days and I just flipped it over to reserve at 130 miles. - Another question I had is about max engine temperature on the 97 600r. When looking at my Vapor digital speedometer which tracks my engine temperature as well; I noticed my engine temperature on a 90 degree day reach 550 degrees and climbing when over 60mph. Is that a bad thing? I do know the bike is Air-cooled.