K181S carb with 2 fuel inlets

[formariz 11,865]

I am retrofitting a wheel horse with a K181S whch came from a Gravely tractor and carburater has a second fuel line inlet righ above choke area. It does have a choke in it like the others. Can anyone shed some light into its function.

 

Thanks

[oldredrider 2,547]

Unless I'm mistaken, that inlet is for a tube from the breather.

[Jparkes43 329]

Yes I think it will be a crankcase vent breather because when a piston goes down it creates blowback and that meas that a little bit of the explosion pressure goes into the cranckase and without these breathers you would have a big problem because the crankcase pressure would build up and it would blow up.

Hope this helped

James

Edited February 8, 2014 by Jparkes43