Hi mate thanks for the reply .my bike has done 36 thousand miles .it's only when the bike has been sitting in the garage all night .coolant level is fine it's not using water and the bike was serviced last year .How many miles? how do the plugs look? smoke at startup could be valve seals, the oil, when you shut the bike off, seeps down around the seals into the cylinder and then burns off when you start it. The amount that seeps is usually small that's why it burns off and stops after you run it a minute or two. Does it smoke only after its been sitting turned off for a while or If you warm it up and shut it off then start it right away does it smoke? Also, is it something that's smoking while "choked" and then goes away? Could be in the high idle ..circuit.
smoke at startup could be valve seals
Seems it's a consistent conclusion and I believe that's your issue, worn valve seals, hard as rocks, cracked, allowing oil to enter the cylinder overnight.Excessive fuel (ie. running rich) causes grey or black smoke, not white.
As Pauvil says, oil smoke that only appears for a short while after a cold start is usually caused by worn valve stem seals and/or valve guides.
Hi mate is it ok to leave it as it is or will may bike get worse iv been quoted £700 to solve this issue? Best regardsSeems it's a consistent conclusion and I believe that's your issue, worn valve seals, hard as rocks, cracked, allowing oil to enter the cylinder overnight.
When you fire it up in the morning, you're burning it off. It takes a night time of hours for it to seep enough oil in there. You want to pull the head and do the work, or just live with it and replace the plugs every few months?
You should see some older Gold Wings smoke like a freight train each morning, most guys never use a side stand to reduce the effect on that model bike. 36,000 miles, depending on how you rode it, maintained it, and the unknown owners before you treated it, could be getting tired, well seasoned, past it's prime.