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Discussion Starter #1
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?
 

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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
 

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Discussion Starter #3
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?
 

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Discussion Starter #7
could it be an air line? On the manual i downloaded from mikuni it says there is an air vent.
 

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Discussion Starter #10
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
 
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