There is never a more important period in the life of your engine than the period between 0 and 1600 km (1000 mi). For this reason, you should read the following material carefully.
Since the engine is brand new, do not put an excessive load on it for the first 1600 km (1000 mi). The various parts in the engine wear and polish themselves to the correct operating clearances. During this period, prolonged full-throttle operation or any condition that might result in engine overheating must be avoided.
0–1000 km (0–600 mi)
Avoid prolonged operation above 5300 r/min. NOTICE: After 1000 km (600 mi) of operation, the engine oil must be changed and the oil filter cartridge or element replaced.
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 6300 r/min.
1600 km (1000 mi) and beyond
The vehicle can now be operated normally.
Keep the engine speed out of the tachometer red zone.
If any engine trouble should occur during the engine break-in period, immediately have a Yamaha dealer check the vehicle.