Alright so yesterday my bike wasn't starting so I cleaned the carb and it started, then problems started where I would hear it start then it would just cutoff. now when i try to start it, i get nothing. I checked the CDI and its fine, spark plug has spark, im running a 50:1 ratio on my gas and I just can't find the problem. Someone please help me. And yes before you say it...I know my carb is junk the choke and something else have fell off it but it still works, It's the Mikuni VM18.