What a palaver.
The videos dont seem to address the elephant in the room that they are replacing the whole fuel pump, but without apparently replacing that thing that looks like a coffee filter.
These are available separately but seems to cost almost as much as the highly complex fuel pump. !
The clue I think is in on the cox brothers page. - here is a paste.
The suction filter removes large dirt and the fuel is then sucked into the fuel pump. The fuel is then filtered again by the fuel filter before being fed to the engine fuel injectors.It seems there is a secondary filter in the fuel pump that is likely to be the one that actually clogs and causes problems. This presumably can only be cured by replacing the whole unit.
I think the ' coffee bag' filter is what Cox's refer to as the suction filter, which prefilters any major muck from the fuel tank. . It wouldnt be good workshop practice just to replace this filter, but not the pump unit. But its possible the suction filter doesnt normally get very dirty (although it did look quite dirty in one of the Videos.) Its not a fine filter and would need to be quite heavily contaminated before there was any significant restriction to fuel flow. . Its odd that the kit includes replacment seals and clips but not the suction filter . It may be sufficient just to inspect its condition and maybe wash it out. Honda may have decided not to fit one on later models. ( -The bodger in me noticed its similarity to a covid face mask
)
To be on the safe side you could buy one on a sale or return basis in case you need it.
