My 89 Sporty seemed to be using a hell of a lot of fuel. I did all the general things that people list to help with fuel consumption and none seemed to help.
Last week I noticed that after filling up there was a strong smell of petrol as I drove along so I stopped to check. There was a large amount of fuel leaked out round the petrol cap, and on closer inspection it seemed to have been blown out the breather hole in the fuel cap. I've been monitoring it since and it would appear if I have any more than 2/3 of a tank it pours out the breather hole.
Any idea's what may be causing this leakage? Is there another breather pipe somewhere that may be blocked?