oil under the engine

[jbabb]

I am fairly new to the motored biking. I have two Chinese engines. One 80cc and one 49cc. I

Both have black nasty oil dripping on the floor after I park them. It is coming from under the engine.Does anyone know If I can stop this or is it just Characteristic of these beasts?

Thanks for the help.

jbabb

 

[Venice Motor Bikes]

It's probably coming from the exaust pipe... (it's normal)

 

[jbabb]

I forgot to mention that. I thought it was the exhaust as well. But it is actually running all over the back motor mounts of both engines. It is not a clean oil ( I use blue 2 cycle ) it is a wet Black gewy stuff.

It wasn't the exhaust pipe like I thought, and both engines seem to have it in the same place.

Is there some type of gasket in there?

jbabb

 

[Venice Motor Bikes]

The 2-stroke engines also "spit" some gas & oil back out of the carbs... (again, this is normal.)

 

[bairdco]

my grubee does that. i just think of it as an automatic chain oiler. it goes away after awhile. and it's harmless. except to your socks.

 

[city of angels]

what type of oil are u using (how much) my bike use to do that until i switch to amsoil oil right the only i get is the oil from the exaust that comes when i am running the bike

 

[BarelyAWake]

Prolly not it - but I just spooked myself (not you guys spookytooth lol), I was doin' my usual "preflight" and I noticed the underside of MY motor was covered in "wet Black gewy stuff"

Yeah, well... as it turns out I was just a bit too enthusiastic last time I oiled my chain heh

 

[Kevlarr]

I was getting that as well, was almost a tar that would run down the mag cover and was in the cooling fins. Snugged up the exhaust nuts and switched to Opti-2 and it went away.

 

[Revo]

Mine did it too, try to screw the motor mount studs in all the way. Mine does'nt leak anymore.

 

[xlite]

It's funny to see people use 16:1 mix which is about 3x what's needed then wonder why their bike leaves a black trail of oil behind.

 

[Mike Hunt]

bike's just marking its territory.

its probably the mix though, i used to have that problem too, until i started putting in less oil.

 

[xlite]

bike's just marking its territory.

LOL! I have a special strip of my driveway allocated for the "oil barons". Gotta be careful not to slip when walking up that area.

 

[chrisme]

When my carb was running rich it would spit black crap out of the exhaust. And since my exhaust gasket leaked it would come out there too.
But after I fixed my carb and got it running right, the black greasy nastiness stopped.