Servicing a Yamaha 4-Stroke

Servicing Yamaha 4-StrokeA wise saying that I heard in my younger days as a guide:  “If you touch your engine, you touch it a lot.”  In other words, engine maintenance isn’t something that you do without a great deal of care and understanding.

On the other hand, who doesn’t want to know what goes into maintaining a modern 4-stroke?  Here it all is in eight minutes.