Hello, Working on a power smart 24 inch snowblower with a let engine. Model number is. Db7651-24. Fiend took carburetor off and cleaned. He put back on and the blower idles great but will not go any higher under load. It does not have a throttle and relies on governor. Tried to run and watch governor but does not move under load. If I grab governor linkage, I can get rpm’s to go up. Governor lever is spring loaded. Triedlct website but is down, perhaps I can call Monday. Typically would I check governor adjustment but opening throttle on carb and setting governor counterclockwise all the way? Thanks for your help.