300/440/550 550 fuel line diagram?

[whitca]

I'm having problems figuring out what lines go where on this carb. It's a mikuni round body thats going on there to replace a keihn off of a 440. The 440 carb didn't have a return and the mikuni does but I don't know which outlet goes where. There's three total, one mid housing on the back, another coming out of bottom right of fuel pump, and the third coming straight out of the fuel pump pointing towards the side of the engine compartment. Which is fuel in, fuel return, and pulse? Thanks for the help.

 

[#ZERO]

1-Fuel return
2-Fuel inlet
3-Pulse line to the crank case

 

[whitca]

Thanks...thats what I needed! I had the pulse and return lines mixed up. Hopefully, she runs...fingers crossed.

 

[#ZERO]

You should also tap the return line for a .60 main jet because those carbs don't have the restrictor built in them.