Carb help, where to find it?

[RyanBez]

Alright, so everywhere I've read on how to adjust the carbs (HS2's) requires you to start the engine and adjust it to run better.

My issue is that it is a new engine rebuild and the car has never ran. After rebuilding the carbs, how do I adjust the carbs to have the engine start up?

From what I can tell, all the fast idle does is open the valve to let some mixture through. How open should this be? How far should it open when the choke is pulled?

Any advice would be greatly appreciated.

Note: I have verified I'm getting a spark so the only thing I can guess is no fuel (also, I'm not smelling fuel).

 

[Bayless]

First the jets have to be centered then the floats have to be set. Be sure your fuel pump is working. Close the jets even with the bridge then open 12 flats or 3 full turns. This likely will not be right but it should start and run. Start the motor, warm up then adjust the idle screws then the jets. If you don't have a manual, get one. It will be your best friend.

 

[RyanBez]

Thanks, I have the Haynes manual but I don't find it that helpful getting the car started the first time.

 

[DrEntropy]

In addition to what Bayless says, the idle screws will best be initially set at 3/4 of a turn from contact with the links. If all else is right the thing will light off on first crank. And be prepared to send the choke control to the "off" position, use it in combo with throttle to run the RPM at 2K, not much higher until/unless oil pressure hops up.

The choke cable does two things: opens the throttle blades <span style="font-style: italic">slightly</span> and lowers the jets a considerable amount.

Check fuel delivery first. Either by disconnecting the line at the back carb and putting it into a suitable vessel (NOT styrofoam!) to see if fuel is being sent or remove the three screws on one of the float bowls to see if it has fuel in it.

 

[nomad]

If you're dealing with a fresh rebuild make sure you have oil pressure before starting and the post's above have got it right!! [Bentley manual is better in my opinion] If no oil pressure you may have to prime the pump.

Kurt.