I have a ATV that doesn't get ran often enough. Have to run with some choke or it dies. Last time this happened I took it to the dealer to have the carbs cleaned at a cost of $300. This time I am thinking about adding a product called "Seafoam" to the gas and try letting that help clean the primaries before taking it back to the dealer. I have never used Seafoam. Anyone have any experience with this stuff? Other suggestions?