Fully synthetic or part synthetic?

[Slaninar]

[quote author=Slaninar link=topic=19992.msg231038#msg231038 date=1462208552]
Frequent oil changes do no good to engine.

The manufacturers recommended oil change period is 4000 miles or every 6 months for both generations of the Fazer Thou, I would personally class this as frequent and regular especially given the example that I used of someone covering 200k. If you are saying that Yamaha have got this wrong then perhaps you can take it up with them and let us know how you get on.
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I mean't no need to be more frequent than the manufacturer recommends. Like I said: "stick to the manual".