Question about Suzuki Motorcycles
You didn't say what color the smoke was, but even so I'd say that's (probably) not oil coming out - it's soot, or wet soot since the bikes been idle. Normally it gets blown out (mostly) when you ride, but when they sit the moisture in the air can turn it to gooey black gunk.
My best guess.
Posted on Mar 21, 2014
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Posted on Jan 02, 2017
SOURCE: Oil Leak at exhaust flange
No major problem. The proper mix is 32 to 1 gas and oil. That equals 4 ounces of 2 stroke ENGINE oil to one gallon of gas. Do not use MOTOR oil in the gas. 10w40 motor oil is what goes in the gearbox. Tighten the exhaust flange.
A top ranking please ... Thanks BJS!
Posted on Apr 25, 2009
Hi and welcome to FixYa,
In the versions we have worked on, almost always, your description indicates too lean a mixture on at least one of the carbs (chances are the one for the front cylinder). Considering that it has not been used for over a year, the carbs would need to be pulled down and cleaned. Old/stale gas would have coated the inside of the carbs with varnish like substance. This would be blocking the ports, holes, jets, slides and definitely, the bowl, walls and floats. Other than the above, the fuel pump/regulator would also have to be considered.
Incidentally, I was made to understand that certain versions has had known issues with the carbs and a recall was done.
Good luck and thank you for using FixYa.
Posted on Apr 25, 2009
SOURCE: Oil leak by exhaust pipe
I am not personally familiar with a 1975 DT250, but here is a general overview. If the bike is a 4 stroke, the oil you observed could have been from the exhaust, however it is more likely that it is from a leaky valve cover gasket or a head gasket. If the bike is a 2 stroke, the "oil" is from the exhaust (expansion chamber). It is excess 2 stroke oil that accumulates. You should reduce the mix to 32:1 or even 40:1 and replace the oring gasket in the opening of the pipe. If in a pinch you can use high temp silicone, but not a good way to go.
Posted on May 11, 2009
the bike should be straight up and down and the oli level should be in the middle of the glass you bike should take around 4 qts
Posted on May 15, 2009
SOURCE: white smoke
Are you sure the smoke is white? White smoke is usually caused by antifreeze burning.(This could be a head gasket)
If the smoke is actually light gray it is oil burning.(This would be rings or valve seals)
If it smokes mostly on startup and then stops when it warms up (It could be a worn valve guide or deteriorated valve guide seal (or possibly several) allowing a tiny amount of oil into one or more cylinders).
If it smokes mostly when you are cornering (It could be too much oil in the crankcase).
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Posted on May 19, 2009
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