White smoke from bike

A mass of white smoke is usually indicative of a failing head gasket where engine coolant is getting into the cylinder but as many motorcycles are air-cooled and don’t actually have coolant, this is not often the issue on a bike ! Strangely enough, excess gasoline will produce black smoke , oil will produce white smoke. A bad head gasket is probably the culprit. The white smoke is the result of normal condensation which builds up inside the exhaust system.

Well, it backfired as Regal did get thrown off the bike but Hayes fluttered around the track emitting white smoke thanks to a broken water pump. If it is below degrees Fahrenheit , then white smoke is perfectly normal until the engine warms up. If it continues after the engine is warm, then there is a source of excess water somewhere in the engine.

You will ofen notice a sweet smell to the exhaust. Other indications are air in the coolant system and possible drops of oil in the coolant. Most coolant leaks into the combustion chamber are from the head gasket. It happens a lot when starting an engine on a cool morning after not having run it overnight. The smoke has a distinct burned oil smell.

Took the bike to the shop. The engine has good compression. So you need to keep your eye on coolant level and check your engine for overheat. Light condensation from the exhaust is normal at a cold start.

This may be because the fuel is of poor quality or is contaminated. Did you overfilled engine oil? This is very serious and will cause severe engine damage. When white smoke is spewing from your exhaust, it is usually an indication that something is burning. The typical culprit is a burning fluid from the vehicle, but other causes are possible.

A backyard mechanic can diagnose the problem by observing and smelling the smoke. Locating where it is coming from and accessing. You have probably blown your head gasket. Change it before you have a big problem.

Rings will not seal 1 until its warm. It will Burn oil on startup and blows a tiny bit of white smoke IF you snap it and run it at high rpm cold. If you just start it and let it warm up to operating temperature before giving it throttle it shouldnt do that. If smoke is being release then this is indicative of a problem. HOWTO looks at all the possible reasons why white smoke is coming from your exhaust pipe.

One other cause is the engine running too lean. If they are cracke this can allow air to get sucked in and lean out the mixture, causing white smoke. It smells sort of like burning plastic.

If it's water vapour from wetness or combustion then it will clear as does the 'steam' from a kettle. White Vapour is probably water. It could be shit in the top of the pistons. If you are doing short runs (less than 10km) or it is humid outside (likely at this time of year in that region) then I would expect it. If the bike is running well otherwise, and its just a bit of smoke while the bike is warming up, I would ignore it.

If the exhaust gaskets were bad you probably would see this smoke fron the header connection. Running rich will give you black smoke if your oil mix is right. Also as you added the fuel to some existing fuel, maybe drain the tank and start again. I bike has been sitting for the last two years.

I changed the oil and started it. I get normal exhaust from the rear cylinder but I get puffs of white smoke from the front cylinder. When I shut the bike off I get a trail of white smoke from that cylinder. Not saying that's your problem, just FYI. The plugs are black and slighty.

Check your oil for gas. Problems with stocked parts is they are el cheapo. It might need a new jet. Good you changed some parts.

To be more specific, the white smoke you see is your diesel fuel, unburne or only partially burned. The commonest reasons for this lie in the fuel system. They range from faulty fuel injectors to retarded fuel injectio n timing, or even low compression.