ULTRASONIC CLEANING:
Ultrasonic cleaners are the ideal method of cleaning carburetors. Since the ultrasonic waves can reach into even the smallest crevices, ultrasonic cleaning machines can clean carburetors even more thoroughly than spray wash systems. With a strong alkaline degreasing chemical, such as the special mixture that I use; ultrasonic machines can quickly remove heavy grease and varnish buildup from carburetors.

 This carburetor service does not guarantee that your problems will be solved but does eliminate varnish, and dirt from the carburetor both inside and out. Perfect if your bike has only been sitting for a year or 2 and you know it was fine when it was parked. This carburetor cleaner will not affect rubber parts.