I'm willing to bet that it actually does give the information you need in that manual, but you don't know what to look for. Your problem isn't going to be written out as you have here, because you likely have more than one problem and don't know what to look for. Thus far you have been given lots of suggestions, that you have not reported back on having checked. All you have done is come back with the attitude that your manual should tell you exactly what is wrong and how to fix it, and that we are being jerks because we are telling you that we can't tell you "replace this part and it will solve it" because there could be multiple causes. Start using your brain instead of your mouth and check out the things already suggested. There is no magical solution to your problem, only suggestions on possible causes. If you're not willing to make use of them, thats your problem. You are going to need to start doing some systematic troubleshooting to eliminate some parts from being the cause. Thus far you have cleaned the carb, but did you clean the tank? You haven't given a gauge reading of compression, or checked the reeds, or anything else besides saying it died and is backfiring out the carb. If you want help fine, but you have to be willing to help yourself by trying the suggestions you are given.