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Discussion Starter · #1 ·
Several weeks ago when I was having issues with the bike not running right, I was told to make sure the gas tank vent wasn't clogged. In my infinite wisdom, I decided to blow compressed air into the end of the vent hose. Well, turns out, I had the wrong hose in my hand, and I had inadvertently grabbed what I think is the overflow hose for the radiator/coolant reservoir. Well, after I did that, when I started it up, It was smoking for a minute, and a little fluid leaked onto the floor. The few times I started it after that, it did the same thing. I will be putting the carbs/tank back on this weekend (hopefully) and this has been bugging me. Did I wreck something, or did I just blow some fluid out onto the engine. This may be the first time this has ever been done, so I don't know what, if any problems I may have caused. :)
 

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Novice Tank Roller
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15,810 Posts
white smoke can be an indicator of antifreeze in the combustion chamber. To me, that would indicate an internal leak, however, I can't imagine an air compressor creating THAT much pressure in the cooling system without the radiator cap releasing the back-pressure.
 

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BACK ON TWO WHEELS
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need to start it up again and observe the situation. but first, check coolant, look for oil in it, second look at the oil, antifreeze water will appear milky slimey... see if you start it and it still blows smoke
 

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Discussion Starter · #9 ·
need to start it up again and observe the situation. but first, check coolant, look for oil in it, second look at the oil, antifreeze water will appear milky slimey... see if you start it and it still blows smoke
My hopes (and guess) are that it blew out from under the cap. It should have. The oil (I checked it) shows no signs of any coolant being mixed in it. Once I get the carbs back on, I will have more info. Hopefully this weekend.
 

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Navy Vet Search & Rescue
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8,843 Posts
Probably sprayed a bunch of coolant over the engine/exhaust and when the engine/exhaust get hot enough it starts burning it off. Try washing the front side of the engine and exhaust and see if gets better. You might have to remove some plastics to get good access to that area.
 
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