You’re really cute also. I asked you five things to give us and you only gave us ONE, model number 51988. For all others looking at this post, he is talking about a Toro PowerVac Gas PoweredBlower. The serial number he gave us is actually the part number for an ignition module. Because you really don’t want us to get to technical, or you can’t answer the other questions, I can only make the following assumptions. 1. You have fresh fuel, mixed properly at 50/1. 2. You have used the primer bulb when trying to start and the bulb fills with fuel. 3. You have tested the switch and have great spark with the new module and spark plug you installed. 4. You feel that you have good compression. 5. Because you have done all of these things you have reasonable mechanical skills. That being said I suggest you check both crankshaft seals for leakage, because any leakage will result in a lean mixture entering the crankcase and cylinder. There are two methods to check those seals. Best way is with a leak down tester. The other way is to remove the flywheel and blower fan and visually inspect the seals, looking for oil on the outside. This is the best I can come up with, with the limited and blurred picture you provided. I’ll back out of this thread, but I suggest that if you want more help, you loose the attitude and maybe someone smarter than me will respond. Shouldn’t take much to find someone smarter than the two of us. Bye, bye, bye.