Probably preaching to the choir her at BITOG. I bought a 2005 Yamaha VStar 650 Silverado used last week. (Me and the wife are 6' tall, getting two up on the Ninja to catch HOV probably a no-go). Bike has 2600 miles on it. Owner stated as to service history "It's good till 5000". Being a cautious type, I bought a Fram CH004 and three qts of Delo 15w-40 and went to work. Oil around outside of filter cartridge housing showed plenty of sparkly wear metals. (Yamaha says 4400 mile service interval, but 1000 mile break in interval for initial service). Got that wrapped up an ordered a qt of Amsoil 80w-90 syn gear lube. Just drained the final drive, you guessed it, plenty of sparkly wear metal. I would submit that break in service is a must, and I will do a short interval this time, just to get rid of any excess wear metals.