Do you know what cable it is?

[Khare]

Whilst doing my daily engine check up i found a brown cable that goes from the engine head but its not attached to anything on the other end. It finishes in a round kind of shape. Do you know what this could be? maybe oil related, cos the oil light flashes when the ignition is turned on and my oil level is full, filled it up last week.

[Diamond Hell]

Brown cable, with a ring end says earth all day long.

A photo might help people here.

[kittie]

The oil light normally flashes when you turn the ignition on before you start the engine, doesn't it?

[Uruk Hai]

The oil light normally flashes when you turn the ignition on before you start the engine, doesn't it?

It does and then obviously should go out after a second or two, does sound like an earth wire though. Pictures needed realy as me crystal ball has a bit of a miss fire today 

[Jay]

It does and then obviously should go out after a second or two, does sound like an earth wire though. Pictures needed realy as me crystal Headlights has a bit of a miss fire today 

[MeTsU]

Certainly does sound like an earth wire.

[Khare]

This is the "mystery wire"

[tobz.]

That should most likely be connected to the carburettor, this makes sure the carb is earthed and therefore reduces the risk of the carb becoming live and then a spark being caused (not desirable for obvious reasons). This is needed as the carb is mounted on a rubber block and therefore doesn't have any other explicit earth connection.

[MeTsU]

That should most likely be connected to the carburettor, this makes sure the carb is earthed and therefore reduces the risk of the carb becoming live and then a spark being caused (not desirable for obvious reasons). This is needed as the carb is mounted on a rubber block and therefore doesn't have any other explicit earth connection.

Hit the nail right on the head.    Certainly not a good idea to have dodgy earth's.  Not only for that reason, but bad earth's are a common cause of power issues.  You can gain valuable HP from fitting a decent make grounding kit.

[Khare]

so what are you saying? that i have to connect this to my carb and get a decent wire? the wire is badly peeled and worn.