Cb400sf spec 3

[amilahetti]

[Hi
I'm so in a mixed up situation with this.
My bike is Honda CB400sf spec 3.
And very recently I found bike don't pick-up and have pulling less power after 5000rpm. Feels like misfiring.I have changed spark plugs card tune and balanced.noticed 1&4 plugs are carbonised then other 2. I have checked coils and swap but still same.and no change. In1&4 plugs condition.
With my resort findings it's like some wiring issue with 180 speed limiter. Can you please help me to identify the wiring of the speedometer.coz I can't find blue and orange wiring in Speedo only in hiss ignition module wire have similar one .plzzzz help me to fix this issue.

[amilahetti]

Other connector in Speedo

[amilahetti]

HISS wiring have similar wires

[a_morti]

Trouble is, your bike is more modern than anything you'll find expertise on here.
The speedometer is probably electronic instead of cable driven, so the restrictor will work in a different way.