It was 10 times worse than that so it's definitely clearing up. I need more road time, it's pissing down at the moment otherwise I was gonna head out now! Getting on Dyno asap
Update: took bike to Honda dealer, and it was fine the whole way. No smoke at all. Checking oil level showed the same as start of the ride. Checking the coolant is a pain. You can hardly see the bottle!
Similar thing happened to mine. Hadn't started it for four months as I was working abroad. It struggled to start, Iet it tick over until warm then turned it off I didn't rev it so no smoke that time. Tried again the next week, wouldn't start, gave it a jump and it started with a few cracks and pops, reved it and the brown smoke came out. Today I emptied the tank and put some fresh fuel in, started instantly and no smoke. Think the fuel had gone off since I last used it.
I had about 2l of fuel in my tank for four months. I read somewhere that fuel that has gone off can overfuel the engine. Not 100% sure about this, but it would make sense the way my bike was behaving. How long was your fuel in your tank? From BP's website below, Petrol in sealed containers The storage life of petrol is one year when stored under shelter in a sealed container. Once a seal is broken the fuel has a storage life of six months at 20°C or three months at 30°C. Petrol in equipment tanks The storage life of petrol in equipment fuel tanks is one month. This can be extended by topping up with one third of fresh fuel, which restores the volatile components that have evaporated. Topping up with fresh fuel will help, however it is not a foolproof strategy for engines that are used only intermittently. The following principles may also help: > Keep the tank half full to stop water vapour from being sucked in and condensing. > Consider using a fuel that contains anti-oxidants, metal deactivators and corrosion inhibitors to protect metal surfaces; such as BP Ultimate. > Use a hotter spark plug to help to reduce carbon deposits.
That would make a lot of sense mate, cheers. I bought the fuel in early November, so it was easily six weeks old. The trouble is the weather is so shite at the moment, there's no point riding it even though I really want to.