A lot of us have the ACD skid plate and one of our intrepid members hit his hard enough to bend it a bit. He said that he knew when he hit whatever it was. Later, when he removed the skid plate he found the oil filter looked like this.
There are at least two types of damage to be aware of in this one photo. You can see that the front face (left in photo) of the filter is misshapen and is no longer parallel to the mounting face. It's easily enough to dislodge the internal element so that this filter was probably not performing its function at all, letting dirty oil flow right back into the bearings, transmission, and rest of the delicate parts of the engine.
The filter has also been rubbing against the skid plate. With a little dirt or sand, it wouldn't take long to wear a hole through the wall of the can. These bikes don't have a low oil pressure light, they only have a low quantity light, so by the time the light comes on the delicate parts downstream of the filter have been starved.
When you take off the ACD plate to change oil, check the old filter and see if you have wear damage before just putting the skid plate back on.
There are at least two types of damage to be aware of in this one photo. You can see that the front face (left in photo) of the filter is misshapen and is no longer parallel to the mounting face. It's easily enough to dislodge the internal element so that this filter was probably not performing its function at all, letting dirty oil flow right back into the bearings, transmission, and rest of the delicate parts of the engine.
The filter has also been rubbing against the skid plate. With a little dirt or sand, it wouldn't take long to wear a hole through the wall of the can. These bikes don't have a low oil pressure light, they only have a low quantity light, so by the time the light comes on the delicate parts downstream of the filter have been starved.
When you take off the ACD plate to change oil, check the old filter and see if you have wear damage before just putting the skid plate back on.