Hondas can be complicated,
I fully overhauled the GX160 on my SB 45 last year and is was as simple as it gets.
I replaced all seals and gaskets, output shaft bearing and seal, whole new head including rockers, springs and valves, honed the bore and put in new rings. Was as dead simple and straight forward as it gets.
It is such a smooth, quiet and refind engine. Starts first pull every time, no smoke, great economy and torque. A B&S, of which I have two, sounds unrefined in comparison.
My brushcutter is built on a Honda GX25 - the most ballsy little straight shaft I have ever used - again, quiet, smooth and refined with a bootload of torque and you don't need to rev the ring out of it.
Ben.
