I know this is no big deal but I have just passed 1000 miles on my Dax F-80 china girl. I passed 1000 miles today on my ride to the beach and back home. It ran good and strong, good RPMs and purring like a kitten at low idle. I reset my odometer when I replaced the first motor and put the Dax on. I've run it with Opti-2 since I got it at 70x1 for break in and 100x1 after. I grease it after every 100 miles or so. I'm running a sick bike parts expansion pipe and a RT carb (Dellorto clone) with a stock slant head. I've had all of these parts on it for the life of the engine. I can't wait to run it another thousand!