Hi N1KKO,
Yes those H660's are a beast but a fantastic piece of kit. Blades can be turned over or just sharpen them they will last a very long time. Seems like you are going to cover most of the maintenance on it.
I assume it has a Briggs on it and they can be an absolute pig to start unless you are under 25 years of age. I have one here still that I have to set up with an electric start, I don't have a chance in hell of pull starting it
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