Can any draw me a diagram please

[modmod1]

So I have a JD300 and am about to use a Yamaha 300 carb and the fuel pump that was given to me with the carb but am not sure how to run all the hoses. Plus I see lots of pics of my fuel pump but none with 2 vacuum spigot. Also the spigot on the top of the carb is that a vent or a overflow? Thanks

[modmod1]

So after lots of searching I found this on a go cart site, does this look correct? So the centre of the face of the pump is my pulse hose and the fitting on the top I would use that as a return back to my fuel tank?

[modmod1]

Also just found this in my manual, so the top spigot do I just cap it off along with the ( vapour return line) at the tank?

[400brian]

The pumps that Deere used ( as far as I know ) were the 3 fitting variety. On the mid-mounts where the bendix carb was used they had a similar tank fitting, but with just one hose fitting. So I guess you could plumb it the way the go cart diagram shows and try it. A three fitting pump isn't all that expensive either.

[modmod1]

Hi Brian

I will try as you said but was wondering the old original carb I guess would vapour lock and that is why the is a vapour return line to the tank but now that I am using the Mikuni carb is that line even needed? Should I just cap off the end of the pump and the tank and just run the single feed line from the tank to the pump then to the carb? Thanks