Plz help Pressure Washer reves to high going to blow up.. Plz help

[garyjw2]

Hello thanks for taking the time to help me out. So I have a Mi-T-M tradeworks 2600 pressurewasher, I took it apart to clean carberator cuz it would not start. Now it starts right up and idles great but when u hook up water to it and try to run it it reeves so high sounding like it is going to blow up its crazy. I iam thinking it has some thing to do with throttle but not sure. If anyone has any info I would appreciate it.. Thanks