I recently have excessive white smoke from the exausts of both my 2-stroke, 86, 550cc and 89, 650 Jet Skis. They still seem to run good. I have read it is either running too rich or too lean. Or maybe I’m thinking I have got hold of some skunky oil? Which would it most likely be?
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A properly jetted two-stroke won`t smoke much under load and after it`s warmed up. They will when cold and warming up, due to the cylinder still being cold and burning off whatever oil or gas was left over from shut down.
White smoke from the exhaust: This could be steam caused by condensation in the exhaust pipe or a more serious issue caused by an engine coolant leak. Excessive amounts of white smoke could indicate head gasket failure.
Danger Level: None. If you suddenly notice that something looking like white smoke is coming from the tailpipe of your car, you may not need to worry just yet. As long as it`s relatively thin and goes away within a few minutes of starting your vehicle, chances are it`s not smoke at all, but water vapor.
Breathing two stroke exhaust on a regular basis is considered to be a serious health hazard but such engines are seldom used indoors and outdoors the exhaust is diluted and you don`t breathe much of it at all, especially riding a motorcycle, because it`s behind you and below you, and you don`t usually ride very long at …
Background: White smoke inhalation is an uncommon but potentially deadly cause of acute lung injury.
One possible reason for white smoke coming from your car`s exhaust is that the engine is burning oil. This can happen if the oil level in the engine is low or if the oil seal is leaking.
The symptoms of too much car oil
If it is overfilled, the following may occur: Dense white smoke – If you drive your car and see plenty of thick, white exhaust smoke, excess oil may be burning within the engine block, although fluids such as antifreeze may also be the culprit.
Other reasons for the smoke to be this colour could be a very dirty oil or air filter. However, most of the time the issue is just a problem with the engine (could be internal or external). While white smoke may just come from your engine on a cool day, excessive white smoke most likely indicates a problem.
White smoke coming from the exhaust is almost always a sign of a blown head gasket, but the loss of coolant by itself isn`t necessarily a sign of a blown head gasket.
You would burn about a gallon of oil every 1,000 miles if you used a two-stroke engine in a car. Two-stroke engines do not use fuel efficiently, so you would get fewer miles per gallon. Two-stroke engines produce a lot of pollution — so much, in fact, that it is likely that you won`t see them around too much longer.
A current garden variety 600 twin engine in the popular trail/sport category can deliver up to 12,000 miles (19,000 kms) of reasonable use. Reasonable use includes using good quality injector oil, regular servicing of the exhaust valves and annual clutch maintenance.
Because combustion takes place with each revolution of the crankshaft with a 2-stroke, this format puts out more power than a 4-stroke engine and the power has more instantaneous delivery. This are some reasons why 2-stroke engines have a long history of use on many different types of motorcycles.
Without getting into details, the main reason for the difference is that two-stroke engines are much less efficient in combustion than four-stroke engines (which are standard in cars); they burn a mix of oil and gasoline; and they emit a lot of this combustion mixture directly into the atmosphere, unburned.
It`s also important to keep in mind that if you`re running your two-stroke on the lean side, it may need more frequent rebuild intervals. When rebuilding the top end the general time frame is every 25 hours however like we said earlier every bike is unique and rebuild times also vary with engine sizes.
A 2-stroke piston can last over a hundred hours if the bike was casually ridden and properly maintained, but an aggressive motocross racer can wear out a top-end in less than 20 hours of ride time.
To be extra clear, before someone starts arguing with us, white smoke will make your food taste smoky, but in a bad way. This is because this white smoke is a sign that your charcoals aren`t ready to cook with. While this white smoke is billowing, you`ll likely be at low temperatures and getting ash all over your food.
Thick white smoke is dirty smoke and is caused by moisture evaporating from the surface of the charcoal or wood. After 10 to 15 minutes, the white smoke should subside, and you will be left with a clean-burning fire.
White or light gray smoke is usually associated with paper, straw, leaves, or wood. It is formed of pyrolysis products (gasses, liquids, and tars) that condense to form a fog of tiny droplets that bypass the flame.
“Regardless of the vehicle manufacturer, we have noticed white smoke being emitted immediately after an engine oil change. What could be the possible reason for this?” White smoke most likely would indicate that water or coolant is getting into the combustion chamber or exhaust port.
Causes of White Smoke From Exhaust
This could happen because the head gasket has blown, the cylinder head is damaged or the engine block could be cracked. White smoke can also be a sign of fuel passing through the engine and reaching the exhaust without having been burned.
When the fuel-air ratio skews to too much air, it is said to be lean.
A perforation to your gasket or a blown head gasket usually occurs as a result of an overheated engine. When coolant flows into the combustion chamber from a blown head gasket it burns/evaporates into white smoke.
If you`ve accidentally put too much oil into the engine, it is best to try to discard the oil until below the maximum limit. Driving with too much oil will only make your engine deteriorate quickly. To do this, just like changing your own oil, drain the excess oil through the drain plug at the bottom of the engine.
If the engine oil is overfilled by 1 litre or more, the connecting rod and crankshaft will whip oil into it, frothing the engine oil. This causes clogged plugs, rough idling, and engine misfire.