Fish Face

Joined:
2011-02-27 13:59:31

Posts: 1

Posted:Sunday 27 February, 2011 2:17 PM

quote

Subject: CB125j (UK) Technical Advice

Hi, I've recently purchased a 1976 CB125. It was running fine but I've now hit problems. It started cutting out and misfiring and then wouldn't start at all. There is a spark but the spark plug looks wet and oily, or sometimes black and sooty. When I changed the spark plug it started first time and ran for a few hundred yards before repeating the same problem. According to the manual, the state of the spark plug suggests that it's an ignition problem. I don't think its a blockage in the fuel pipe or carb because it starts first time with a new spark plug. Can anyone offer some advice on what I can try to sort this out? Many thanks.