hi de hi......
has anyone heard of temp rising 3c when you turn lights, and it drops 3c when ya turn off lights
i've checked charging system the r/r appears to be putting out right voltage
found connection block one pin has burnt/brown marks on it
battery is charging alright,

does it do that at hwy speeds too, or just in the city? Have you got high-wattage (100w) bulbs in there and are you running with your hi-beam? The alternator will be harder to turn with a heavier load, which would account for the temp increase. I would check the condition of the battery too. it wouldn't hurt. If it's 4 yrs + old just replace it. A weak battery will suck the life out of you electrical system.

Remove, clean, replace all your grounds! Sounds like you have a cross feeding problem there.

Also check your voltage drop between your battery and headlamp and headlamp switch.

It sounds like you are from overseas or have a euro switch so take your switch housings apart and clean your contacts and check your wires.

Dave

cheers for all your help.
will try cleaning joints grounds etc,
as i use bike for dispatch work (courier), i don't get much time to stop
i do about 1200 miles a week, and found the bb just eats up the miles
and have fun doing it lol, yes am in ireland, will have crack at switch, the weekend,
thanks all,jon