BST38SS fuel/vent lines

[Trentsteel]

Hi Guys

Another question, i have my carbs back on just want to clarify which one of the lines is fuel and which is vent as its impossible to make out in the manual from the diagram and i dont want to split them at the moment unless i have to.

is it the ones closest to the front or the ones closest to the back with the spring over them?

Thanks

[Jelly]

Spring is fuel, other is vacuum for the tap. 

[Trentsteel]

so i have 2x fuel lines which are the spring ones and 3x vacuum lines, 2x from the carbs and 1x from the inlet rubbers?

[Jelly]

If you are posting halve pictures you will get halve answers

I believe BST38SS are dual fed, so you need to add a splitter. Vacuum is the one from the inlet rubber. Other pipes are breathers. Did the carbs originally belong on this engine? Sometimes the vacuum comes of the inlet rubber, sometimes of the carb itself.

A nice read: https://oldskoolsuzuki.info/archives/531

[Oilyspanner]

2 x fuel lines, 2 x vents (1 between carb 1 and 2 and the other between 3 and 4), the other line on the inlet rubber is the vacuum source for the fuel tap.

[Trentsteel]

Haha sorry ill be sure to add a few pictures next time.

Thanks everyone this is very helpful!

 

[Jelly]

Read the article, and make sure that when using pod filters to connect some 30cm long lines to the vents in order to have it running correctly.