Hi,
I've been informed me by a retired motorbike mechanic, that it sounds like my mains bearing is going. This is despite it starting 1st time and seemingly running ok. I've put any previous noise down to any drive chains, but he seemed to think that there was an underlying tone. I believe his advice, as it is noticeable at the top speed since as it can only manage around 60/65 mph. With winter coming, its a job I need/want to do, but was wondering if anyone could advise me as to what essential checks to do.
Also, I've talked to SRM engineering in England as they fit a replacement for the 'white bearing' but they mentioned that you could reduce noise on the engine by unscrewing a 'breather' nut? Does or has anyone heard about this?
Any advice is much appreciated
Thanks