my blaster need help!

[mystic mafia]

when i got to accelerate at all it is very hesitant on acccelrating. what could theproblem be?

 

[Awk08]

whens the last time you cleaned the airfilter/carb, prolly dirt somewhere
refer here.................
http://www.blasterforum.com/engine-13/my-general-troubleshooting-maintenance-30347/#post358200