smoke from exhaust

[Anonymous]

i was riding today and decided to rev it high and at really high smoke was coming out of it, it charcole white but not grey? what does it mean, it smelled like lean gas

[focus frenzy]

What it is depends on a few factors, how much oil does it use, what shape the carbs are in, (is it running fine, fuel milage) and have you just been running around at low revs for awhile.
on motorcycles and cars that have been "babied", carbon and other deposits build up in the combustion chamber and when you "get on it" the higher chamber temps and higher flow of air coming in and exaust leaving will blow the build up out producing the smoke.

[Hap Call]

Re: smoke from exhaust

i was riding today and decided to rev it high and at really high smoke was coming out of it, it charcole white but not grey? what does it mean, it smelled like lean gas

If it were oil burning, you would probably see it at low revs also...my guess is that you are running a little lean (have you changed the intake filters and/or exhaust?) or you have the situation that Focus mentioned. What do your plugs look like?

Hap

[Anonymous]

actually i havent check the gas mileage but i dont think its too great, no im definitley not babying it. my friend said it could be oil leaking through the rings or the valves

[Anonymous]

white/gray smoke = ok.. blueish smoke=bad


Rev up your bike, put your hand behind the muffler/can, and let some of that smoke stuff deposit on your hand and then smell it. You will be able to tell if its carbon or oil.

[Anonymous]

i dont konw how either one smells

[Anonymous]

one smells like fuel, the other smells like that rancid oil-burning smell