hello , i have an 89 kx125. the problem is that the engine coolant leaks into the oil. then the oil is a solid gray color and leaks from the small sprocket outta the bike, it only leaks out of the sprocket area unless its leaned to its left side. before i ride i change the oil, i put in oil, start it for a few secs. drain it and repeat for about 3 to 4 times. but during riding the coolant leaks into the oil and i think that it cant b good for the engine. does anyone have any solutions to fix this problem, and what could be causing it? any help at all would be greatly appreciated

 

also it blows smoke out the silencer, i have an fmf pipe with a fatty silencer onit and it will smoke a gray color for a long while, while during riding. i made sure that the choke is fully dissengaged, whats up with this?

 

it could possilly be a blown head gasket on it.
because just like a car coolant mixs it to the oil when the head gasket it blow . the oil leaking frm the sprocket area look at it an check for cracks hope this helps . what color is the smoke coming out of the exhaust blue smoke usually = oil (to rich) White smoke = (moisture water coolant )

laterz,
brian

 

could be a water pump gasket lettin water in and a crankshaft gasket lettin oil out

 

Sounds like a bad case seal..there a pain in the ***. If it's not a water pump seal..then check your case seal's..If it is that you have to have someone split the cases and ****