So on the F4 i just bought for whatever reason it is completely missing the joint collar #1 in the diagram. Apparently that is the only part in that assembly that is discontinued. doesnt anyone know if there is a alternative?

 

You can try eBay for carb parts, but that's a pretty specific one. You could try taking it to a hardware store and seeing if they have an idea.

 

Yea that's pretty much where I'm at I didn't see any one eBay and found one in Europe but it would be close to 100 dollars once its delivered local shop said they if I could find a peice of water hose the right side that it should work. I also may be buying a extra set of carbs for around 100 that way at least I have spare parts.