Ok..so I took the plunge today and came home with an 07 XRL...it was a choice between this and a KLX 400....also a great bike. All the manual says about break in period is to not go heavy on the throttle for the first 300 miles......so no fast starts and wheelies! I dont wanty to over rev the engine, but I dont know what over revving would be on a 650 without a tachometer?? (I am used to riding a HD Street Glide so difficult to compare speeds and rpm's)...so what sort of top speed should I be aiming for in 5th gear during break in to give me an idea of how hard its revving?. (did a search on the forum but could not find my answer). I took it for a 40 mile ride this afternoon , 20 miles then stopped so it could could cool down, then 20 back. Varying the speed a much a I could and engine breaking thru different gears.....averaging around 45 to 50 mph, but occasionaly taking it briefly to 60 then engine braking back down to a much slower speed ....... I notice the exhaust popping a lot as well on de acceleration..is this usual? Any advice greatly appreciated. Thanks.