Engine code	Vacuum hoses on/off		Setting
RN		On ...........................	18° +-1° BTDC at 950 +-50rpm
NE		On ...........................	With leaned petrol, 18° +-1° BTDC at 950 +-50rpm
						With unleaned petrol, 10° +-1° BTDC at 825 to 975rpm
RU		On ...........................	18° +-1° BTDC at 950 +- 50
DZ		Off and plugged ..............	With leaned petrol, 6° +-1° BTDC at 900 to 1000rpm
						With unleaned petrol, 0° +-1° at 800 to 1000rpm
PM		Off and plugged ..............	6° +-1° BTDC at 950 (maximum)
JN		Off and plugged ..............	6° +-1° BTDC at 900 +-50rpm
3A		- ............................	6° +-1° BTDC at 780 to 900rpm
NG		- ............................	15° +-1° BTDC at 720 to 860rpm
PS		- ............................	18° +-1° BTDC at 750 to 850rpm
KV		On ...........................	With leaned petrol, 18° +-1° BTDC at 800 to 50rpm
						With unleaned petrol, 9° +-1° BTCD at 750 to 850rpm						
7A		- ............................	TDC static