[someone11]

I need a diagram for mikuni vm carbs on where all the fuel lines are supposed to go. I know one is primer, one is air line, and another is main fuel line, what is the fourth one for?

 

[MXZOOoom]

Primer? must be a rotax lol

Ok so you have on the carb an intake from fuel pump
....................... " " " for the primer
....................... " " " one for over flow ( it just hangs off the carb )

from the bottom of the crankcase to the fuel pump for sucksion to make the pump run

Thats four

 

[someone11]

i know, theres a fourth on the carb, not the crank

on the carb- main fuel line, primer line, over flow, the whats the fourth line for? air?

 

[someone11]

i can get a pic. if you want

 

[someone11]

here:

 

[MXZOOoom]

i am stumped

 

[someone11]

could it be an air line? On the manual i downloaded from mikuni it says there is an air vent.

 

[smellykelly]

could it be an air line? On the manual i downloaded from mikuni it says there is an air vent.[/b]

I believe there are 2 overflow lines on the carb.

 

[idnative1948]

Couldn't one of them be the crankcase vent?

 

[someone11]

not on the carb, but yes, there is a crank case vent going from the crankcase to the fuel pump, gotta remember, i have 2 carbs