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i think white smoke is water being burned? anyone care to add...

Member since 8/30/02. Forget what the post count says!
 

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Mad Hatter
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when i first start my bike...it gets like this white smoke out of the exhaust.. only when i first start it though . after it warms up it goes away. its not alot of smoke either. almost looks like vapor on a car in the morning. just wanted to know if this is normal or what. bike has 1900 miles on it.
 

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no you hoiser, oil is blue, gas is black...

am-i-talking-to-fast-for-you-eh?[:0]

Member since 8/30/02. Forget what the post count says!
 

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Does your bike sit outsided uncovered for long periods of time? How much dew does your area get overnight? Sounds like water vapor is getting into the exhaust system, and making the smoke you are seeing.

Wouldn't hurt to perform both a cooling system leakdown test, and a compression and leakdown test on the engine, too.

BC.


I didn't do it, I swear.
And even if I did, what makes you think I would admit it to you?
 

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Its normal my bike does it when you first start it in the mornings nothing to worry about. You should only worry if it does it when the engine is fully warmed up.

White Smoke Low engine temperature (usually occurs during engine start-up) * No repair needed
Coolant or water leaking into combustion chamber * Bad head gasket
* Cracked block or cylinder head

Blue Smoke Engine oil being burned * Oil leaking into combustion chamber
* Worn piston rings, valves, or cylinders
* Bad exhaust manifold
* Bad head gasket

Black or Gray Smoke Incomplete fuel combustion * Cold engine
(no repair needed)
* Clogged air filter
* Carburetor, choke, fuel injection, or emission system malfunction
* Ignition timing off
* Low compression due to engine wear
 

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[?]

"I love ninjas with every part of my body, including my pee pee."
 

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If it is oil (you should be able to tell by the smell) you probably have leakind valve guides. when the bike sits over-night, the oil that is in the cylinder head has time to leak just enough through cracked or worn valve guides for there to be enough oil in the combustion chamber to smoke a bit at start-up. after this oil is burned off it will stop smoking because the oil does not leak into the cylinders because 1.) valve guides dont leak fast enough to cause continuous oil burning; and 2.) the oil is no longer stagnant in the cylinder head, it is being circulates by the forced wet sump system.
Now, if this is indeed the problem, dont sweat it much, the only adverse effect it will have is a 10% to 15% drop in the life of your plugs. Talk to a Kawa mechanic, (I'm a GM mechanic) and see if there is a hotter plug (one with more ceramic center post area) you can run. This should give you back the "normal" amount of spark plug life.

If your butt itches, your fingers probably stink!
 

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Mad Hatter
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thanks guys. my suspicions were correct about vapor tho. its summer now. and it doesnt do it anymore. the bike is stored in my garage where humididty is very prominent. this is my first bike so im learning. time to buy a dehumidifier. [:I]
 
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