I have pulled off the swingarm on my P650 to change the bearings, and found that there is gear oil in the front of the swingarm (where the driveshaft runs from the tranny to the rear diff. My question is, is this normal or do I have a bad seal somewhere allowing oil to get into that housing? Thanks in advance.
Jeremy

 

it's probably the seal on the rear of the engine, that the driveshaft comes out of... if that leaks, it runs down the driveshaft & collects there...

 

I really noticed it after I pulled the driveshaft out of the swingarm, does the driveshaft seal off the diff, from the front of the swingarm?