Johnson Service Bulletin SB-885 (1961) - Coil and Condenser Specifications

Johnson Motors Service Bulletin letterhead

December 15, 1961

Bulletin No. SB-885 Ignition Systems

SUBJECT: Coil and Condenser usage with test specifications; 1949 thru 1962 engines.

Listed are the coil index setting numbers and condenser capacities required when testing currently serviced Johnson magnetos and battery ignition systems with Stevens' latest Magneto Analyzer.

Note that a new coil, part #580416, has been introduced for the following 1962 models: 18 h.p. FD(L)-16, 28 h.p. RX-10C, and the 40 h.p. RD(L) thru RK(L)-24. List unit price is $6.40 less the standard parts discounts.

H.P.	ENGINE MODEL NO.	COIL PART NO.	SWITCH SETTING	INDEX NO.	CONDENSER PART NO.	CAPACITY MFD.
2.5	HD-25	375189	A	24	300153	.150-.205
2.5	HS & HD-26	580118	A	24	580321*	.18-.22
3	JW-10 thru JWL-17	580118	A	24	580321*	.18-.22
5	TD-20	375189	A	24	300153	.150-.205
5	TN & TNL-25 & 26	375189	A	24	300153	.150-.205
5	TN & TNL-27 & 28	580118	A	24	580321*	.18-.22
5.5	CD-10 thru CDL-19	580118	A	24	580321*	.18-.22
7.5	AD-10 thru ADL-12	580118	A	24	580321*	.18-.22
10	QD-10 thru QDL-11	580040	B	23	300153	.150-.205
10	QD-12 thru QDL-23	580118	A	24	580321*	.18-.22
15	FD thru FDEL-10,10L & 10S	580118	A	24	580321*	.18-.22
16	SD & SDL-15 & 20	375102	B	16	300153	.150-.205
18	FD thru FDEL-11,11K & 12;
	FD & FDL-13 thru 15F	580197	A	22	580422**	.25-.29
18	FD(L)-16	580197##	A	22	580422**	.25-.29
		580416##	A	24	580422**	.25-.29
22	PO & POL-15	72-852	A	10	72-864	.27-.33
25	RD & RDL-10 thru 17S;
	RDE thru RDEL-16 thru 17S	580118	A	24	580321*	.18-.22
28	RX-10C	580416	A	24	580422**	.25-.29
30	RD & RDEL thru RJEL-18 thru 18C	580197	A	22	580422**	.25-.29
35	RD & RDEL thru RJEL-19 & 19M;
	RD thru RDEL-19C;
	RDS thru RDSL-20;
	RD thru RDSL-21 & 21B	580197	A	22	580422**	.25-.29
40	RD thru RDSL-22 thru 23	580197	A	22	580422**	.25-.29
40	RD(L) thru RK(L)-24	580416	A	24	580422**	.25-.29
50	V4 thru V4SL-10 thru 11B	580243	B	23	580256	.37-.41
75	V4S & V4SL-12 thru 14	580243	B	23	580256	.37-.41
75	V4A & V4AL-13 thru 14	378231#	B	25	580256	.37-.41

Over

SB-885 Page 2

* For Service, 580321 supersedes 510173. Capacity for the 510173 condenser is the same as for 580321 - .18 to .22 microfarads. ** See SB-861 for details of service requirements on condenser 580422. # Requires special test adaptor, (Stevens #MA-11). See service bulletin No. SB-824 for recommended procedures when testing on or off the engine. ## Either the 580197 or 580416 coils will be found in matched pairs on early 1962 - 18 h.p. engines. Coil identification in a given engine can be determined as follows: 580197 has blue tinted plastic insulation, 580416 has purple tinted plastic insulation.

JOHNSON MOTORS

W. W. DeWees

W. W. DeWees Service Department

WWD:eb

NOTE: Post on your Miscellaneous index. Mark subject (b) contained in SB-861 'OBSOLETE'.

Johnson Service Bulletin SB-885 - Coil and Condenser Specifications