he says its only after a couple of days of sitting so manifold heat doesnt fit the description... it would do it everytime he let it sit for a couple of hours if it was that... but it could be fuel leaking into the intake and flooding your cylinders or the fuel just leaking out of the side of your carb... it could also be a weak spark to begin with... turn it over for a little while without pumping the gas (to warm up the plugs and ignition system) and then after youve done that then try to crank it up normally with just a couple of pumps... if it fires up then your problem is in the ignition... if not then your problem is in the fuel thats my suggestion :Handshake
Havent seen that on a stock intake though. Its usually Aluminum intakes that are bad for it. That boils the fuel and it spills out of the venturi into the intake. Its a hard start right away due to flooding. Long crank condition. You'll see the fuel spilling onto the throttle blades after shut down hot. Oh yeah, get rid of those point things. They suck. Uh oh I may have offended some one. Somebody on here probably loves points.
so, on close inspection, there is a very slow drip at the fuel bowl. so I'm thinking maybe the bowl empties when I have it parked and when I go to inspect it in the morning it's all evaporated?
thats what happens if the float level is to high. it should drain the whole bowl, only till the level in the bowl is below the venturie. you really need to figure out if you have a stong spark. there are several things that indicate spark strengh. get a friend or a remote starter switch. take the coil wire off the distrubor. hold or set it over a part of the motor so the end of the wire is about 1/4" above the motor. now crank the motor over (if using the remote switch you need to turn the key on. dont leave the key on all the time, it can burn out the coil) note the color of the spark. a white spark is good a blue spark is weak. there is a spark tester you get at most autoparts stores that has one end that is a clip and the other end is like a spark plug end that a plug wire can go onto. they have a screw to increase the gap and decrease the gap that the tool forces the spark to jump. using this tool you can measure the strength spark with this tool.
Slow drip at the bowl? Could be the accellerator pump diaphram's busted. It's on the front, 4 screws in the cover with the rod from the linkage pushing on the center. Cheap and easy fix.
