This is what you can do.. Remove Carb... Dissect carb completely... Boil carb and all metal parts, jets, and all, submerged in boiling water with a few squirts of Non pulp Lemon juice for 20 mins. Once done, remove and blow out all parts with compressed air.. For Brass jets and Jet tubing, poke through all holes using a strand of wire cut from a bicycle cable. This strand is very small and will allow you to poke through all the side holes on the Main jet pitot tube. Once done. Blow through all holes again with compressed air and reassemble and re install carb to engine.. Done.. Also.. Remove inline fuel filter and while cranking engine to actuate fuel valve to pump fuel out of fuel line and purge any particles of matter and debris from the fuel line.. Install a new fuel filter and repeat this process to again purge the fuel line of any particles. Once you have flowed enough fuel through filter and lines to flush out any particles, install fuel line to carb. Shoot intake with starting fluid. Fire motor.. Enjoy the ride..