So I get plenty of smoke from my exhausts when I start up my bike, settles down after a while. i dont believe Im burning any oil, but the smell of gas is very high.
I was convinced my carbs were getting flooded. but then I decided to run a small test. I kept the fuel line disconnected overnight after going out for a long ride. When I started 'er up the next morning, I noticed that the smoke was still noticeable (though not as bad) What could be wrong here. if it is flooding will, simply changing the float level setting change things??
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Re: smoke like hell
If it's only smoking on startup, I wouldn't worry about it too much.
What color is the smoke? White means leaking valve stem seals. If it's black, it means you are running ruch, but you want that during the warmup phase anyway. If it's running fineexcept for a little smoke on startup, I wouldn't worry about it (enough to tear into the carbs again anyway) Wink
Oh if it was your floats, it would more likely be smoking through the rev range all the time.
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Is it condensation or actual smoke? White smoke is associated with diesel mixed in petrol and with quite strong smells. I suspect that it is condensation as water vapor is a by product of combustion and the motor/exhaust will have to warm up to clear it. Check for water droplets at the end of the exhaust to confirm condensation. Burning oil will cause a blueish smoke to emit from exhausts.
Might be your miracle in a can fix burning causing the smoke. If its coming out of a joint where it clamps, try to tighten the clamp. Sometimes there is also an exhaust gasket where the one pipe slips into the other pipe that could be broke or missing.
If the level of engine oil keeps going down (even in very small amount), then it shows a problem with piston rings.
Hope it helps and let me know if you need more advice.
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Continuous or just for the 5-10 seconds.
If continuous you may have oil seeping past your pistons oil rings or valve guides oil seals.
Check your spark plug see if they are fouled badly (covered heavily and oily) or just covered by oil and sooth lightly.
If 5-10 sec it is normal as the engine is heating up there are normally a little oil seeping past the seals.
I agree, Too much oil in the mix. I run at 40:1 at the moment but have also used 50:1 in the past with no problems.
Drain the fuel tank and re-fill with fresh 40:1 mix.
Tip the bike over on its side to run out the carb.
You have a unique problem caused by excessive oil and carbon build up. The sparks are from excessive oil burning, as is the smoke, and not being able to shut the engine down or contol it is called pre-ignition. There is so much carbon built up inside the combustion chamber it is acting like a glow plug when it gets red hot.
Beyond that I can't say how or why you are getting the excessive carbon build up, other than from the oil.
Double check the oil level. Maybe somehow the engine is being over filled?