125-200cc Oil leak from sight glass

I did the Sandy Lane Enduro yesterday and it a tough one to say the least. When it was over through all the mud I could see that I have a slight oil leak from my seal around the sight glass.

Is this common, is there an aftermarket clutch cover without the glass?

The window on my '09 fell out on it's maiden voyage :O

Dunno about aftermarket but the older covers don't have the window and fit. Got mine on ebay for $30 shipped.

I don't think it is unusual although neither of mine has ever leaked....knock on wood. You might pop it out and seal it up with some black silicone seal when you re-install it.

How does it pop out? Do I need to remove clutch cover

Hello, I just replaced my son's site glass on his 125 today and very easy. Take the clutch cover off. The site glass pops out from the front of the cover. I lightly heated with a heat gun and it came right out by lightly prying with a small flat blade screw driver. Light grease around the new one and simply press in my hand. Done in under 10 minutes. I guess you could change without taking the cover off as well but I took off so I could push the site glass out with my finger along with lightly prying from the front. Hope this helps...