Easy test of the valves, disconnect and ground the coil wire.
Remove the air cleaner hose, hold your hand tightly over the intake horn of the carb.
Spin the engine through. You should get a strong, steady vacuum on your hand, and it be wet with gas.
No vacuum, there are stuck open valves.
Vacuum and no gas, there is a fuel delivery problem.
Leave the air cleaner disconnected until you get it running, just in case it is clogged.
Double check the ignition system.
Be sure you have 1/4" spark to ground at each plug. The plug end of the wire, not the distributor.
Double check the firing order, and that it is wired to the correct rotation of the rotor.
Check the wires are correct to #1 on compression. Remove the #1 plug, hold your finger over the hole, bring the piston up feeling for compression. Carefully bring the piston to just before TDC. The rotor should point to #1 cap terminal.
The cylinders may be dry. Put a spoon of oil in each cylinder, spin it out with the plugs out. The oil will raise the compression for easier starting.
You can jump it with 12v. Remove the battery from the circuit, and be careful not to leave the ignition on between start attempts.
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Today's Featured Article - On the Road with Dave Gohl: Deere Departed Friend - by Dave Gohl. Have you ever had to part with a dear friend? It's not easy. If it's due to death, your feelings could be in disarray for days, months or even years. Even now after almost 4 years, I still miss my dad. I remember when I was a kid my dad sometimes would tuck my brother and I in at night and we would ask him questions about his childhood on the farm. To this day, it's some of the best stories I've ever heard. And now, I'm so glad that I asked those questions, and if I were a little smarter i
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