i was wondering what people use on stubborn carb deposits. i got my neighbors snow blower running for them last year and i thought i got things clean out running pretty good but after watching a video on youtube i now realized the emulsion was still a bit more clogged than i realized. the snow blow sat for 2 years without running before last year and the jet was clogged solid when i first took it apart last year. you couldn't even see the jet inside emulsion tube with how bad it was. i ended up using oven cleaner to break most of the crud free because carb cleaner was just not getting the job done but for some reason i have a feeling oven cleaner should probably not be used. any advise?