Originally Posted by
geezer101
You can try to plug the small vacuum ports in the mixture control valves with something temporary like adhesive wall tack (stuff kids use to put posters up on their walls) and start it to see if the mixture valve is the issue. Not being complete can (and probably is..) causing internal vacuum circuit issues. Unfortunately this is the sort of thing you're going to be up against when someone who doesn't know what they're doing monkeys around in an engine bay. Could be the fuel pump set up, blockage in the carb or fuel lines, failing ICM in the distributor, bad coil and ballast...
To test the theory of no fuel, get a clean kitchen sponge that is big enough to cover the throats of the carb (one without the scotchbrite pad stuck to one side) rinse it in fuel, wring out the excess and hold it down over the carb while starting it (do not open throttle). There will be enough fuel vapour in it to run for at least 15-20 seconds. Safer than tipping or spraying raw fuel down the throats and no risk of accidentally flooding the carb and intake with an overdose of fuel.
Bookmarks