I have a 2000 4hp 4 stroke Yamaha and every spring it will not start. The carb float bowl is dry from turning off the fuel to run it dry. To get it running I have to remove the carb and squirt carb cleaner through the openings. Last fall was the first time I fogged it but in the cylinder only after I took the spark plug out. Any suggestions how to keep the carb lubricated so it doesn't clog up?