2003 Yamaha Motorsports Road Star Midnight Owners Manual - Page 54
2003 Yamaha Motorsports Road Star Midnight Manual
Page 54 highlights
OPERATION AND IMPORTANT RIDING POINTS EAU01128 Engine break-in There is never a more important period in the life of your engine than the period between 0 and 1,000 mi (1,600 km). 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 1,000 mi (1,600 km). 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. 1,000 mi (1,600 km) and beyond The vehicle can now be operated normally. EC000049 CAUTION: If any engine trouble should occur during the engine break-in period, immediately have a Yamaha dealer check the vehicle. @ @ EAU01740* 5 0-600 mi (0-1,000 km) Avoid prolonged operation 1/3 throttle. above 600-1,000 mi (1,000-1,600 km) Avoid prolonged operation above 1/2 throttle. ECA00026* CAUTION: After 600 mi (1,000 km) of operation, the engine oil and transfer case oil must be changed, and the oil filter cartridge replaced. @ @ 5-5