Join Date: May 2003
Location: Is this heaven, no its Iowa.
The valves being out of adjustment (and I seriously doubt that they are) will not cause blue smoke to appear.
Does the bike only blow this blue smoke when you initially start it from cold? If so, how long does the bike sit? Does it do this when fully warm?
My R6 racebike used to do this, but only from dead cold and only for about 45 seconds. You understand I am not a trained mechanic, so any info I can give you will be just a guess based on very limited information.
You may have a slightly overly-rich fuel mixture when the bike is first started from cold. Are you using the choke from dead cold? I am assuming you do, because I have too even in some warm (for Iowa) spring/fall months. Does your bike have a PowerCommander installed? If so, what map are you using? Is it possible that your map is too rich below 3000rpm? But an overly-rich fuel mixture should cause a sooty, somewhat faint, almost black smoke. Also, what did the oil smell like when you drained it the first time upon noticing this "smoking" problem? Did the oil smell like gasoline?
Or maybe when the bike sits overnight or longer, a very slight amount of oil is leaking past a valve guide into the combustion chamber. A car I had used to do this, and once the engine was warm, the valve seal would expand and no more oil would get past into the cylinder and thus the smoking would stop.
Also, it could be condensation in your pipes (again from dead cold) mixing with carbon that coats the inside of the header/exhaust, and being blown out, turned to steam when exitting the pipes, and also it would not last very long once the condensation has been vaporized by engine exhaust heat.
I wouldn't worry about coolant getting into the engine, because if coolant were getting past the cylinder head into the combustion chamber, you would see a very distinct, almost white smoke coming from your exhaust, and it would have a very distinct, sweet smell as well.
As far as engine oil level goes, I simply go by what the Service Manual says: 4.1 US qts with a filter change. This method always fills it to the proper level, and always stays between the sight-glass lines until its time for the next oil change. Also, engine oil will expand slightly when it is hot, so that may explain the level change when at operating temperature.
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