Petrol

[andy120t]

The unleaded petrol at my local BP station (Hertford - Rush Green just off the A10) works in all my bikes - and also in my mates CB750.

On that basis I assume it would work in any SOHC Honda, indeed pretty much any motorcycle, however, suggest you try with just a little bit to start with & make sure it is compatible.

[matthewmosse]

Honda were ready for unleaded and it's fine for the sohc hondas and newer bikes but some bikes (bmw for one) didn't fit cylinder heads suitable for unleaded for years, my 1978 bm's need redex lead replacement additive to use unleaded or sustained high speed use would kill the valves

[Yoshi823]

I seem to remember that the Honda CB1100RB, RC & RD all were specified as having to run on 4*. Maybe it was to do with the compression, the squish or the valve seats...not sure which.