my kx leakin oil from air filter

[B1G Y1N M4N50N]

Hi guys newbie here I have a kx 100 and its leaking oil from the air box on to swing arm area my ratio was right but that maybe my air scew as wrong any know ruffly how far in or out the scew should be, or ideas what to do thank peepz

[Motorrad]

Hi guys newbie here I have a kx 100 and its leaking oil from the air box on to swing arm area my ratio was right but that maybe my air scew as wrong any know ruffly how far in or out the scew should be, or ideas what to do thank peepz

recently clean the air filter?

[B1G Y1N M4N50N]

No m8 a haven't but I will try that today do u have any other ideas?

[Motorrad]

No m8 a haven't but I will try that today do u have any other ideas?

well that rules out the easy one.  (over oiled air filter, dripping into the air box, then leaking out the wheep hole)

Is the bike running alright? 

Is the oil INSIDE the air box?   or outside?     not sure on those bikes, but many have exhaust couplers right next to the air box.  could be leaking from  there.

if its not running alright.

cracked / loose reeds...

[Foxx4Beaver]

Hi guys newbie here I have a kx 100 and its leaking oil from the air box on to swing arm area my ratio was right but that maybe my air scew as wrong any know ruffly how far in or out the scew should be, or ideas what to do thank peepz

is the oil you're referring to blacker than black?...if so, then Motorrads' probably right about the silencer to pipe connection....I've had 125s that did exactly the same thing, at that connection, and yes, drip onto the swing-arm.
If your top end is good, sounds like you could go a touch leaner on your jets.

what ratio are you running your pre-mix?....what kind of oil?...what is your current jetting?

[B1G Y1N M4N50N]

Am running 32:1 ratio with mix 4 oz per gallon my bike starts first kick each time and sounds OK the oil looks just dirty looking

[B1G Y1N M4N50N]

A that it maybe my clutch oil as well but am running 10w-40 dealership recommended that

[sandblaster]

My Sons 98 KX100 does the same thing at higher altitudes (4000 ft+).
When he gets to sea level it stops.
For us it's a jetting issue.

[B1G Y1N M4N50N]

Neva heard of that m8 my bike not been out the garage just go out from time 2 time 2 warm it up and stop season up m8.  Av not had time to go out on it lately due 2 work and field floodings lately

[motopunk]

My Sons 98 KX100 does the same thing at higher altitudes (4000 ft+).
When he gets to sea level it stops.
For us it's a jetting issue.

at sea-level is more oxygene in the air then in higher altitudes, that effects that the sea-level-jetting will be too rich in higher altitudes ..  you could jet a carburetor-bike only for one condition correctly... thats the point...   

[motopunk]

Am running 32:1 ratio with mix 4 oz per gallon my bike starts first kick each time and sounds OK the oil looks just dirty looking

 

airfilter oil is red green or blue.. dont think,that it is gearbox-oil  ...dirty black oil comes from exhaust ..
32:1 is a rich mix ...  all my bikes run very well on 40:1  ... check/replace your exhaust-connection-seal and try the 40:1 mix . i think that eliminates your problem.

post a pic, that we could better see your problem.. 

[B1G Y1N M4N50N]

Thanks folks for the help changed my ratio to 40:1 and played about with air screw sounds healthier and my exhaust clamp  was lose near the air box panic over thot it be a big prob thanks folks