March 11, 1959

BULLETIN NO. 699

Subject: SPARK PLUG DOORS 1959 MOTORS 35 and 50 H.P.

At this time on all 35 and 50 H.P. motors being produced the shroud spark plug doors are permanently secured to the shroud. The fact that the spark plugs are not completely accessible thru the opening provided, and the ease in which the complete shroud can be removed for servicing brought this change into effect.

We know that it is a common practice for customers in the dealers showroom to open and close the spark plug doors. On motors which you will be receiving from the factory in future shipments, this will not be possible. Please advise your customers against this practice. It is possible to damage the shroud and could result in extensive damage should a motor on display be upset if someone exerts undue pressure attempting to remove the spark plugs doors.

Since the owner manuals have already been

printed covering our 1959 production of motors, it will be necessary to instruct the new owners in the correct manner to service the spark plugs by removing the complete shroud. Customers should be told to disregard the instructions in the owners manual regarding spark plug door removal.

Shown is an inside view of the current production shroud, with permanently fastened spark plug doors. The spark plug doors of previous production shrouds can be secured in the same manner by obtaining the following parts from your parts distributor. (These parts subject to your regular parts discount.)

Parts required for 50 H.P. shroud. 4-307390 strap .15 each list 4-305230 screw .03 each list Parts required for 35 H.P. shroud 2-307390 strap .15 each list 2-305230 screw .03 each list

Part number 306229 cover latch is now obsolete, and has been superseded by part number 307390 strap. When part 306229 latch is required for service, order 307390 strap. MAKE THIS NOTATION IN YOUR PARTS CATALOGS.

Very truly yours,

JOHNSON MOTORS

Jack Penland - Service Department