Smoke from... a tube...

K

Kain

Been Around the Block
Today on my way to work I noticed I had a bunch of smoke coming out of one of my (for lack of knowing the real name) "overflow Tubes" (???).

I didn't have a whole lot of time to check it out but I think it's the tube coming from the breather cover and it snakes down to just in front of my rear tire. It didn't have any funny colors or anything, it wasn't clouding up the whole street and the bike was running fine but it definitely worried me. I have an oil leak up there somewhere (I think it's the gasket for the breather cover) could that have something to do with the smoke?

Ideas?

Thanks!
 
locO leoN: it's a CB360T

Gage: I don't have a compression gauge. I'll have to go to the mechanic for that.
 
crazypj said:
How cold is it?
What's humidity level?
Did it evaporate quickly?
Does it smell of oil?
It probably normal, just getting hot enough to boil off water vapor from oil/crankcase caused by normal running and condensation.
Remember, for every gallon of gas yyou burn, you produce about a gallon of water

PJ
Click to expand...

pj is right... my 350 does that regularly when the bike is sitting in cold weather.
 
Awesome! Thanks PJ and Rocan!

I'm in Toronto and a lot of the users here will know that it's starting to get a little chilly here (especially overnight). The smoke evaporated quickly and doesn't really smell heavily of oil. I'm thinking you're right about it being condensation. Thanks for putting me at rest guys!
 
crazypj said:
Remember, for every gallon of gas yyou burn, you produce about a gallon of water
Click to expand...

Is this true? I have never heard this and it seems to be imposible by common laws of physics, maybe I am missing what you are saying ???

Sorry to high-jack your thread for this but I am finding this very interesting and think many of us could benifit from this knowledge!
 
Its pretty simple, about two thirds of the energy in petrol goes to create heat and various chemical compounds.
Your compressor 'makes' water from water vapor in atmosphere and has to be drained.
Engine is just an air pump with heat and chemicals thrown in to make things interesting, (plus its running at much higher pressures)

For example,
Fuel air ratio is about 14:1 by weight.
Petrol weighs about 7 lbs gallon.
Oxygen to burn it weighs 7 x 14 = 98lbs
'air' we breathe is 78% nitrogen, 21% oxygen.
Engine has to shift a lot of atmosphere to burn gas
Heck of a lot of water in that amount of air (water weighs about 10lbs for Imperial gallon, US gallon is smaller, 3.88 liters compared to 4.54litres)

PJ
 
tWistedWheelz said:
Is this true? I have never heard this and it seems to be imposible by common laws of physics, maybe I am missing what you are saying ???

Sorry to high-jack your thread for this but I am finding this very interesting and think many of us could benifit from this knowledge!
Click to expand...

the products common to combustion of hydrocarbons are carbon dioxide and water

C8H18 + O2 = CO2 + H2O
 
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