Oil Screen 150cc
 

When changing oil in the 150cc, does the oil screen go open end up (like a cup), or open end down (like a dome)?

that's a pretty good question. Go to the tech section and download the service manual and see if it shows you.

It shows it open side up, which is how I reinstalled it....but it fits better open side down. Strange. I am going to trust the manual and see what happens.

Open end up, the spring seals it's rubberized lip, againt the crankcase.

I didn't put it back on. I didn't see any purpose in having it on.

if you get any particles in the oil
the filter catches them

Not wise, but your buggy, your call.:eeek:

But what's the oil filter below the seat for?