ok.

 

there are 2 vacuum hoses that are sticking out of the firewall on the drivers side. the outside diameter of them is both the same, one the interior diameter is different. which one is the fuel return line? and what is the other one for?

 

Thanks

John

Edited July 21, 200916 yr by Markus56

i tried to use subman90's write up but all the pictures are gone and the link 404'd

I cant remember locations exactly but one of those lines should be the return and the other is the tank vent (leave open). If you pulled the lines off the stock carb the fuel return should have been the smaller of the two that was hooked up right next to the main fuel line.

here are my options

 

 

the one on the left has a larger inner diameter and the one on the right has the smaller one

 

 

EDIT: i hooked up the small one to the fuel return

Edited July 21, 200916 yr by Markus56

it runs! kind of

 

it wont run under 2000 rpm. if i gas it, it will run, but if it goes under 2000, it stops.

Edited July 21, 200916 yr by Markus56

I capped off one vacuum line and now it stays running.

 

but at 2500 rpm no matter what i do to the idle screw

Check to make sure you have everyone of the vaccume lines plugged it sounds like there is an intake leak.....................

 

Jeff

it also isn't running even. it will spike or die every now and then.

 

WAIT A MINUTE

 

are you supposed to take off the rubber mount that is on the intake?

 

meh.

 

deal with it tomorow.

gnight

Edited July 21, 200916 yr by Markus56

The one under the carb by the adaptor plates?

 

Jeff

John I'll get up early tomorrow and give you a hand, I'll take some pics of my weber set up on my brat then we'll have a good diagram to look at ...........

 

 

Jeff

i managed to lose all my 10mm sockets and wrenches, so bring some tools please :-\