I'm not quite sure how it happened, but today while working in some fairly tight quarters in a grove of small saplings and brush, the clear plastic housing the holds the fuel filter on the right side of the engine, cracked and broke. Had my local Kubota dealer order one as he didn't have one. Question: to replace the new one do I simply unscrew the old one or what is left of it and screw the new one on or does it require something more involved? Thanks for your help.