I purchased a new carbed 04 F50 yamaha. I picked it up yesterday from the dealer after installation of a tiller kit. The dealer tech and I discussed breakin of the motor. He had just returned from a training class with Yamaha. He told me these engines are notorious for making oil. Many techs at the class voiced these concerns to the yamaha folks. I told him I read the breakin procedures in the owners manual. He told me to breakin the motor a different way. First of all he said always warm the engine up at idle for 5 minutes period! Second on my first tank of gas(6.5) gallons to run the engine hard 75% throttle and not to run a full throttle for more than 30 seconds(manual states no more than 5 minutes). He stated on the the second tank of gas run it the same way. On the third tank add 2 oz. of ring free and the engine is broke in. He said to add 2 oz. of ring free to every tank from then on. Any thoughts?
