Honda C90 – valve removal, cleaning and lapping

Before you remove the valves you have to take off the tappet covers. A common problem is that these covers seize tight in the cylinder head and – since they are made of a soft aluminium alloy – they can easily be damaged during removal. It is easier to remove them when the engine is installed in … Read more Honda C90 – valve removal, cleaning and lapping

Honda C90 – carb – cleaning and replacement parts

There are only a handful of things that can go wrong with the simple carburettors used on the Honda c90 and – once you have a rough idea of how they work – the fixes are straight forward and largely common sense. Blockages The tiny holes in the emulsion tubes and jets can get blocked … Read more Honda C90 – carb – cleaning and replacement parts