No fuel coming out of valve - no vacuum

[ozonemkr]

Replaced petcock - verified new one worked (with the valve attached to fuel tank - drew vacuum on it and fuel flowed freely). Still can't get any fuel to flow from valve. Replaced vacuum line from valve to carb. The problem appears to be a lack of vacuum in the vacuum line. Any ideas on what might be causing this? By the way... engine turns over and starts when starter fluid is sprayed into spark plug opening. It will run for about 3 seconds on starter fluid and then dies due to no fuel.

[ozonemkr]

After reading through all of the forums I found that the vacuum problem seems to be related to air box and a properly oiled air filter. Upon inspection I found the clamp holding the air box tube to the carb was essentially broken - the tube was on the carb but not tightly. Here's the problem, the clamp is shot and I can't find a replacement. Also, the air box cover does not seal on the box. It almost looks like it's warped. Any thoughts on what to do here?

[vette76]

u can slightly bend the cocer to fit. for the clamp, u can use a hose clamp or zip tie.

[burnt_toast]

spree will still run with with intake hose not clamped on. i sometimes forget to clamp mine up, and it will still run like normal just vacuum sometimes if its not on tight. i dont think thats ur problem.

[vette76]

unscrew the bowl drain screw and draw vacume. if fuel leaks u are getting fuel.

[burnt_toast]

unscrew the bowl drain screw and draw vacume. if fuel leaks u are getting fuel.

good idea, try that see if it works.

[noiseguy]

Contact drichardson@core.com for a clamp. Use a zip-tie until then.

Is the vacuum line connected to the right spot on the intake manifold? See service manual. Is the line cracked? Do you have good cylinder compression (greater than 100 PSI?)