Phye07 3 Posted February 16 Share Posted February 16 So, I have white moist smoke/steam coming from the exhaust on start up. I will describe now. Link to video: The bike starts up with no smoke at all. After a minute or two the smoke starts to billow out the exhaust. It takes around 10+ minutes to finally dissipate. Once it has finally ceased, there is no more white smoke for the duration of operation. If the bike is left to sit for more than 10 minutes, when I restart the smoke appears again. There is moisture spitting out the cans when the bike is warming up. It has soot in it, no oil. Once it is above 80-90 degrees C° it will cease. Please add any comments or advice so I may correctly diagnose the situation I have. Quote Link to post Share on other sites
Magneto 17 Posted February 17 Share Posted February 17 If is cold outside this is normal, if you start your car it should do the same. 1 Quote Link to post Share on other sites
Member Contributer Cogswell 1470 Posted February 17 Member Contributer Share Posted February 17 You only need to worry about moisture from the exhaust when you've been running down the road a while and you're also losing coolant. That means coolant is getting in to one or more cylinders. Condensation from the exhaust in cool weather is nothing to worry about. As pointed out, that looks normal. Quote Link to post Share on other sites
Member Contributer Grum 1021 Posted February 17 Member Contributer Share Posted February 17 Yep as per all of the above. As long as all other parameters eg, coolant and oil levels, and performance is all normal you should be fine. Burning fuel, water is a byproduct and probably more so with hygroscopic Ethanol blended fuel, be aware of Phase Separation! Your very cold atmospheric conditions probably don't help, as long as once your exhaust and engine is fully up to temperature it dissipates, all should be normal. Take it for a good long ride see how it behaves after that! 1 Quote Link to post Share on other sites
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