ok i got it running for a couple of seconds and then alot of smoke blew out the exhaust and it shut off. i think its missing oil, gas.
It's possible that it has no gas in the tank, it constantly amazes me how often people (myself included!) forget to check something easy & simple like fuel level when troubleshooting problems.
As for the oil, the presence of smoke indicates the presence of oil. Check the oil level & oil color with the dipstick, if you don't have one just use your finger. If the oil is disgustingly black and feels gritty or watery, or worse yet is so low you can't get any on the dipstick, you may have damaged the cylinder when you were running it.
Once you know where you're at with the oil, check compression. If you don't have a gauge, you can simply remove the spark plug and put your thumb over the plug hole. It should forcefully blow your thumb off the hole when cranked over. If not, your compression is low and you'll need to tear it down to find the cause.
I suggest you obtain some books on basic internal combustion engine theory & troubleshooting. There are probably a thousand books at your local library on the subject. Find one geared towards small engines, even if it was written in 1940 the same general principles still apply today. Good luck!
