Serial Number Locations/Serial Number Location CTM5 (20OCT92) 10-15-5 K Series Air Cooled Engine AllTractorManuals.com 220596 PN=18 CARBURETOR SERIAL NUMBER LOCATION NOTE: FA130D carburetor shown is used on FA130D-AS16/AS19 and FA210D-AS20 engines. FA130D-AN00 carburetor not shown. -UN-07JUN91 FA210D carburetor shown is used on FA210D-AS17/BS17/CS17 engines. FA210D-AS19-01 carburetor not shown. The serial number (A) is used to identify the carburetor. M80503 Have this number available when requesting parts or service information. FA130D -UN-07JUN91 M80504 FA210D -UN-07JUN91 M80505 FA210V -UN-07JUN91 M80506 FG150G/FG150D MX,1015A1,A4 -19-21OCT92 10 15 5