hey everyone, i was wondering if you guys could give me some advice. I have a 1991 Honda XR 250l that is really dripping oil out of the bottom of the crankcase, can you guys help?

 

No one can help you until you have located the source of the leak. Could be a leaking center case gasket, cracked case, leaking oil drain bolt, bad oil drain bolt gasket, bad countershaft seal, etc,etc,etc.
Take your skidplate off and pressure wash the entire bottomend of the engine and then let it run to pin point the leak.
The biggest job would be a center case gasket leak.
A cracked case would require a good welder who is familiar with engine design.
The other causes are no big deal to fix.

 

come join us on the xr250 form on thumpertalk.com but to address your issue, yeah prob a drain plug washer or oil cooler line. find the leak and let us know.