no clue wht to do

I brought a 87 Honda 250x. When I brought it the guy said it sat outside for a while. It had some rust in the gas tank. So I rode it for awhile no problem at all. I finaly got around to cleaning the gas tank out, got all the rust out rebuilt the carb. Now wont start. I have no clue why. I put in new spark plug.. any idea?. Its my first quad so I could have messed up the rebuild, I did it with a friend of mine he only done it once.

no clue wht to do

I brought a 87 Honda 250x. When I brought it the guy said it sat outside for a while. It had some rust in the gas tank. So I rode it for awhile no problem at all. I finaly got around to cleaning the gas tank out, got all the rust out rebuilt the carb. Now wont start. I have no clue why. I put in new spark plug.. any idea?. Its my first quad so I could have messed up the rebuild, I did it with a friend of mine he only done it once.