From the Yamaha manual: BREAK-IN PROCEDURES 1. Before starting the engine, fill the fuel tank with the fuel. 2. Perform the pre-operation checks on the machine. 3. Start and warm up the engine. Check the idle speed, and check the operation of the controls and the “ENGINE STOP” button. Then, restart the engine and check its operation within no more than 5 minutes after it is restarted. 4. Operate the machine in the lower gears at moderate throttle openings for five to eight minutes. 5. Check how the engine runs when the machine is ridden with the throttle 1/4 to 1/2 open (low to medium speed) for about one hour. 6. Restart the engine and check the operation of the machine throughout its entire operating range. Restart the machine and operate it for about 10 to 15 more minutes. The machine will now be ready to race. The manual doesn't mention anything about "cool-down" periods. Should I let the bike cool down every 15-20 minutes of the first hour of riding? Is this necessary? When it says "lower" gears, do they mean 1st and 2nd? Thanks.