Motor Chart

Motor	Serial # Prefix	Year	Carb	Mag.	Lower Unit	Control Knobs	Color Scheme
20	A	1947 – 48	Tillotson MD9A	Wico 5/8″ core	Single cavitation plate	3 round knobs	Hammer silver: starter, handle, lower unit, tank ring Black:tank, shrouds
20	A	1949 – 54	Tillotson MD9B	Wico 5/8″ core. 1951 on 7/16″ Core	Double cavitation plates, 1951 – 54 – multi vane water pump	2 dog ear knobs	Hammer silver: tank, tank ring, handle, lower unit Black: starter, shrouds
40	B	1947 – 48	Tillotson MD8A	Wico 5/8″ core	Single cavitation plates	3 round knobs	Hammer silver: starter, handle, lower unit Black: tank, shrouds
40	B	1949 – 50	Tillotson MD8B	Wico 5/8″ core	Double cavitation plates	2 dog ear knobs	Hammer silver: tank, tank ring, handle, lower unit Black: starter, shrouds
45	BB	1951 – 52	Carter N 752S or 2021	Wico 7/16″ core	Double cavitation plates, 40 water pump	2 dog ear knobs	Hammer silver: tank, tank ring, handle, lower unit Black: starter, shrouds
45	BB	1953 – 54	Carter N 752S or 2021	Wico 7/16″ core	Double cavitation plates,multi vane water pump	2 dog ear knobs	Hammer silver: tank, tank ring, handle, lower unit Black: starter, shrouds
60	C	1946 -48	Tillotson MD5A, 15A	Early ones scintilla then wico 5/8″ core	Single Cavitation plate	3 round knobs	Hammer silver: starter, handle, lower unit Black: tank, shrouds
60	C	1949 – 50	Tillotson MD5B, 15B	Wico 5/8″ core	Double cavitation plates	2 dog ear knobs	Hammer silver: tank, handle, lower unit Black: starter, shrouds
60Hi Speed	CHS	1949 -54? Some Pre 1949	Tillotson MD15B or Carter	Wico 5/8″ core or 7/16″ core	Double cavitation plates – no water pump	1 round knob	Same as above except no shrouds. Pre- 1949 models will have the black tank.
66	TC	1950	Tillotson MD15B	Wico 5/8″ core	Double cavitation plates	2 dog ear knobs	Hammer silver: tank, handle, lower unit Black: starter, shrouds
75ST	CB	1951	Carter N 753S or 2022	Wico 7/16″ core	Double cavitation plates	2 dog ear knobs	Same as above
75TS	CC	1952 – 54	Carter N 753S or 2022	Wico 7/16″ core	Shift (bell housing with inspection plaste)	2 dog ear knobs	Same as above except red handle grip
100ST	D	1950 – 51	Carter N 754SA	Wico 5/8″ core	Small cavitation plate with larger one over gearcase	2 dog ear knobs	Black: tank/w raised aluminum letters starter top, shrouds, handle grip hammer Silver: lower unit, starter bottom handle fuel guage, tank bracket
100Hi Speed	D (DX)	1951 – ?	Carter N ?	Wico 5/8″ core	Hi speed 60 lower unit	2 dog ear knobs	Same as above
100TS	DB	1952 – 54	Carter N 754SA	Wico 5/8″ core	Shift (bell housing with inspection plaste)	2 dog ear knobs	Same as above except red handle grip
200SS	EHO or EHA	1953 – 54	Carter N	Wico 5/8″ core	Standard Length with blunt nosecone	2 small round, 1 large round, 1 round/w pointer	Same as above except red handle grip with black main handle
200S	EHO or EHA	1954	Carter N	Wico 5/8″ core	Short with pointed nosecone	2 small round, 1 large round, 1 round/w pointer	Same as above