Sight glass panic- (2)

loudhvx wrote: I thought I recall a thread where someone was worried about their oil level after a rebuild, but I can't find the thread.
In it he said he saw the oil disappear from the site glass after starting the motor (which we know is normal), but he was also seeing a lot of splashing in/behind the window.

I was doing some clutch experiments and had the cover off so I took some photos. (BTW, if you tilt the bike enough, you can swap the clutch and only lose a couple drops of oil.)

The animation (3rd image) shows what the range of the oil level would be when the motor is stopped, and on a level surface. You can see the bottom of the clutch pack is in the oil (just barely in the oil when at the lowest level), but should be almost out, if not totally out, when the motor is running.

Perhaps the splashing he was seeing was because the oil level was high enough to touch the clutch. Or maybe it's the secondary shaft gear, which sits directly behind the clutch. The secondary gear is probably in the oil at all times, as it is lower than the clutch.

I can confirm that oil level too high does lead to clutch slippage (as is stated in the FSM).