Carb 809011

[Douglas8589]

Hello, newby here. I have a question concerning the upper carb body. There is a hose connection but I am not sure what it is for, vacuum maybe? It does not appear to have anything to connect it to, should it be capped off? Thanks for your help

 

[StarTech]

Hmmm appears that you have v-twin Vanguard engine. That port is vent line that either goes to the air cleaner, Vapor recovery system, or the fuel tank. Sorry the service manual just don't indicate exactly where it goes to.

Edit: And on some engines that they just put a length of tubing on it and dangle it down the side of the engine.

 

[Douglas8589]

Thank you. You are correct, it is a vanguard v- twin. I assume I can cap this off since I have none of the connections you mentioned? Since this is a gravity fed carb do you think leaving this open could affect fuel flow ? Thanks again

 

[StarTech]

It need to be vented as capping it off will cause problems.

 

[Douglas8589]

Thank you. You are correct, it is a vanguard v- twin. I assume I can cap this off since I have none of the connections you mentioned? Since this is a gravity fed carb do you think leaving this open could affect fuel flow ? Thanks again

It need to be vented as capping it off will cause problems.

Thanks again.

 

[ILENGINE]

The tube is the bowl vent for the carb. Capping it will cause the carb to overflow and/or syphon fuel from the tank.