If you dismantle the plugs be sure to take a photo before, else risk incorrect / mis wired reassembly!. And whilst you can clean the male connectors, you'll achieve little if the females can't be serviced (ooh!).
A mild & agitated acid bath as Lester suggested, in perhaps a cheapo ultrasonic cleaner - if you have one - might be an alternative, followed by a good wash with brake cleaner spray.
A tip for when you 'power up' first time, and assuming your fuses are nice motorcycle / Honda ones... replace them with household fuses of similar rating (eg 13A instead of 15A) ... until you sort all / any issues out.