Time to start over and no jumping around. You seem to have spark and fuel, so we need to have specific tests and results, so we can solve this. Remember, we are not standing next to you to see what is happening. You must follow each step to a tee and don't skip any, assuming that the results have been tested already and you know the answer or outcome to that step. Remember you are our eyes, ears and fingers, so when you report back, the picture you paint for us must be perfectly clear, so we understand what is happening. Failure to do this will not help us or you.
1. Charge the battery overnight, make sure it is fully charged.
2. Turn off the fuel and leave it off until you are told to turn it back on. If you have no shut off, clamp the fuel line with a vise grip pliers.
3. Remove both spark plugs and air cleaner.
4. Turn the engine over for about 5 seconds, this will remove all fuel from the cylinders.
5. Replace the spark plugs.
6. Put the unit in park and make sure the PTO is off.
7. Set the throttle at full open, but NO choke.
8. With your hand on the fuel solenoid, turn the key to the on position. You should feel the solenoid opening when doing this. You may have to do this a couple of times to make sure you feel the solenoid opening. If you do not feel it opening, we have found part of our problem. The solenoid may have to be cleaned or replaced, but we'll get to that later.
9. If you feel it opening, spray some type of starting fluid into the carb air horn. I prefer carb cleaner over either, as either is to dry for me. Some techs like to remove the spark plugs and spray directly into the cylinders. If you do this you must replace the plugs very quickly, before the fluid evaporates.
10. Try starting the engine, we want to know if it will fire. It will not stay running. Do not crank the engine over more than 5 seconds. You may try to do this a couple of times together it to fire.
11. If you get the engine to fire continue on. If no fire, you are either not getting fuel in the cylinder or have no spark. Go to step 16.
12. You got it to fire so open the fuel line for 15 seconds, the shut it off again. We want to make sure the float bowl is full, but not running over.
13. Move the throttle to the choke position or if you have a secondary choke control make sure the choke is closed.
14. Spray some starting fluid into the air horn and start the engine. Try to keep it running by continuing to spray and open the choke. Hopefully the engine will continue to run for about a minute.
15. If it continues to run or not, we will stop at this point and want you to report back what you how found. Be specific and don't leave out anything.
16. You now have to check for spark, either with a spark tester or by removing the plugs and holding them against a good ground while cranking the engine.
17. If you have good spark, we will have to figure out why no fuel is getting into the cylinder.
18. This will involve some technical steps, so we will stop here and wait for a report back.
I know that this is long and tedious, but that is often what troubleshooting a problem involves. I'm sure that when you report back, either I, Bert or another tech will get back to you ASAP, but realize we have other jobs and it will not be immediate. Remember very clear picture.