speedo multiplug loose connection electrical?

[Monman]

I have an issue whereas my oil light only works when I wiggle the electrical Multiplug on the underside of the speedo unit.
Just wondering if anyone else has had the same problem, and what was the outcome. I'll investigate soon.
I did the engine oil and filter  change today and found this little faux pas.
Good timing mind!
 

[D Mann]

These bikes are no longer spring chickens. All of the connectors could benefit for disconnecting, cleaning, coating with a good dielectric grease and reconnecting.

[Monman]

Stripped off the speedo assembly today and found that the female part of the multi plug had elongated sockets. Just crimped them up a bit so that they're now round again, a bit of silicone based dielectric gel (from maplins) and it's now working fine.
Happy days.
Next job - figure out why the indicators work only with the lights on, and that's the front indicators only!
Something to do with when a previous owner bodged on the ex police fairing I'm guessing, judging by the choc block connectors added behind the speedo.