I got a 1994 suzuki katana gsx 750 from my brother the bike has been sitting for a couple of years. it started when i got it but it only ran for a minute so i geuss it burned whatever was in the carbs. i tried disasembling the carbs and cleaning them. there werent any globs of dried up gas. after cleaning i reassembled them, put on the bike and it still wont start so i disconnected the gas tank and put some gas in the float bowls of each carb and still wouldnt start. it has good spark, good compression (also i tried shooting some starter fluid into the intake manifold to give it alittle help, burned the fluid but wouldnt turnover). what should i do now?