black oil in exhaust

[nick9882]

i have a 1999 kx 125,it has black oil dripping from where the exhaust meets the motor and where the header and silencer go together,any ideas

[daBIGstuff]

take the pipe off dump the oil out and when you ride it rev it to clear it up. its probably just loading up.

how do you ride it?

when i was putting mine away for the winter to rebuild i just warmed it up and then turned it off. then the next day i warmed it up then drained the oil but when i took the pipe off oild poured out of the head pipe. i never revved it up because i didn't want to piss the neighbors off.

[nick9882]

i actually just bought it and noticed when i started it up it sprayed oil all over the garage door,could it be that the gas mixture is to rich or the carb is out of adjustment,do you get this kind of thing from a bad crank seal.

[daBIGstuff]

does it smoke alot when warmed up? when my 250 seal went it smoked alot and the trans oil level dropped.

[climb any hill]

My Banshee did that when running way too rich. Those plugs look good or seeping wet?

[tecate/250r RiDeR]

thats how my quadracer is...i run it rich..

[climb any hill]

Originally Posted by tecate/250r RiDeR

thats how my quadracer is...i run it rich..

That's before I had the jetting down after portwork, no way I would run like that all year long.
I'm just a tad rich to play it safe but I don't have any oil oozing from pipes.

[nick9882]

the plug has a some oil oil it,it smokes when i first start it up,but after a min,it just smokes like a normal 2 stroke

[FPMXer]

There are two o-rings that seal the pipe and a copper washer that the pipe seats against in the exhaust neck. The reason fuel is spitting out is the engine's bottom end is loaded with fuel. FMF makes a kit with the new copper washer and two o-rings. What pipe is on the bike and what is your jetting at?

[nick9882]

it has a gold series pipe,not sure what the jetting is,i just bought it last week,if i pull the float bowl will i be able to tell what size jet it is