2023 Stock Outboard Classes: Age, Weight, Height, Engine, Restrictor and Tuck Specifications

Class	Min. age	Min. wt.	Height	Engine	Restrictor Plate/Tuck
JR/JH	9 – 16	300	1 3/4″	OMC15ss, Merc 15	OMC .562 – Merc “J” slotted JH 1/2″ Tuck – 1″ Set Back
AXH	12	325	1 3/8″	OMC15ss, Merc 15	OMC .650 – Merc-none 1/2″ Max Tuck
AXR	12	330	1 3/8″	OMC15ss, Merc 15	OMC .650 – Merc-none 1/2″ Max Tuck
ASH	14	345	1”	OMC15ss	1/2″ Max Tuck
ASH	14	330	1”	Merc 15	1/2″ Max Tuck
ASH	14	345	1 3/4″	Sidewinder A	1/2″ Max Tuck
ASR	14	350	1”	OMC15ss
ASR	14	335	1”	Merc 15
ASR	14	350	1 3/8″	Sidewinder A
15SSH	15	365	1/2″	HR15
15SSH	15	365	1″	Sidewinder 20S	3/4″ Restrictor
15SSR	15	360	1″	HR15	“Bottom Fin”
15SSR	15	360	1 3/8″	Sidewinder 20S	3/4″ Restrictor, “Bottom Fin”
15SSR	15	375	1 3/8″	HR15	“Side Fin”
15SSR	15	375	1 3/4″	Sidewinder 20S	3/4″ Restrictor, “Side Fin”
BSH	16	385	1/2″	Sidewinder 20S	Unrestricted
BSH	16	400	1/2″	Yamato 80
BSH	16	430	1″	Merc 25XS	Restricted
BSR	16	380	1″	Sidewinder 20S	Unrestricted, Any Fin Mount
BSR	16	395	1/2″	Yamato 80	Unrestricted, Any Fin Mount
BSR	16	395	1 3/8″	Merc 25XS	Restricted, Any Fin Mount
CSH	16	440	3/4″	Y102/Y302/Y321/Y331
CSR	16	475	3/4″	Y102/Y302/Y321/Y331
20SSH	15	400	1/2″	Yamato 80
20SSH	15	400	1/2″	Y102/Y302 (tower)	7/16″R
20SSH	15	400	3/4″	Y321/Y331 (tower)	7/16″R
25SSR	16	380	1″	Sidewinder 20S	Unrestricted, Any Fin Mount
25SSR	16	395	1 3/8″	Merc 25XS	Unrestricted
25SSR	16	405	3/4″	Y102/Y302/Y321/331	1/2″R
25SSR	16	415	3/4″	Y102/Y302/Y321/331	9/16″R
DSH	18	500	0″	Merc
DSH	18	500	1/2″	TOHATSU
DSR	16	515	3/4″	Merc/TOHATSU	Marathon ONLY Class
300SSH	14	420	1 3/8″	Y302/Y321/331 Sealed	1/2″ Max Tuck – 5″ Set Back (Min 8’9″L – 35″W Bottom, 5’9″ AP)
OSY400	14	396		Y80/102/202/302/321/331	APBA PRO Class