just acquick video on the correct placement of the dellortor baffle that sits between the main jet and needle jet. parts catatloge calls it a cover. if installed upside down it will cause bogging. the correct placement is the "cup goes up" if looking down onto the bottom of the carburetor. otherwise the cup opening faces the bowl. part I'm describing p/n 45131074000.
![](https://i.ytimg.com/vi/9KvIYnvk5qg/maxresdefault.jpg)