Thanks guys for the help. Removed all four plugs today, squirted a little oil in the cylinders, spun her over, tapped on carb to loosen float, hooked the gas back up, cleaned,gapped & reinstalled the plugs and she fired right up. Oh I forgot to mention that I noticed gas pouring up the exhaust pipe when I tried to crank it on Tuesday. Also, I noticed that the manifold had a rust-through (or burn-through) hole in the forward lower section. Installed a sheet metal screw in the hole for now. To address the hydraulic lock question--if the needle and seat don't work, and the gas tank is full, gas will continue to flow into the carb and flow into the intake hose. When the engine is cranked over, the vacuum will pull the gas "column" up the intake manifold and into the cylinders. The engine definitely stopped dead in its tracks when I tried to crank it over. Just happy that she's running again. Lord knows I don't need more work to do around here. We split and stacked more firewood tonight. One day, I'll take a photo and post. One of the racks is about 80 or 90 feet long, stacked about 5 feet high. Between that one and the others, spread around the property, I think we're up to about 8 cords cut and stacked. All we need now is some of those arctic clippers....
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