121 – Installation of 5.00 x 16 Tires
INSTALLATION OF 5.00 x 16 TIRES We have received reports from the field that trouble has been experienced with the...
122 – Battery Boil Over
It has been brought to our attention that batteries in the 1941 machine quite frequently have boiled over. This condition...
123 – IMPORTANT – Do Not Allow Batteries To Stand Idle
I M P O R T A N TDO NOT ALLOW BATTERIES TO STAND IDLE When new machines are received,...
124 – Lower Fork Connecting Link Bolt Brakage
It has been called to our attention that trouble is being experienced with the lower fork connecting link bolt breaking...
126 – Motors Wet Sumping 1941
1941 MOTORS WET SUMPING By wet sumping, we mean that too much oil is carried in the crankcase, which has...
127 – Care Of Duckworth Drive Chains
RECOMMENDATIONS FOR CARE AND LUBRICATIONOFDUCKWORTH REAR DRIVE MOTORCYCLE CHAINS FOR ARMY SERVICE Rear drive motorcycle chains operating most of the...
130 – Models 640 and 641 Fork Shackle Bolts
MODELS 640 AND 641 FORK SHACKLE BOLTS It has been found that when the set screws are tightened on the...
131 – Special Bulletin For Military Motorcycles – Spark Plugs
SPARK PLUGS The spark plug provides suitable electrodes inside the cylinder, which can be jumped by a high voltage from...
133 Nov 14 1941 – Wheel Bearing Failures
133 November 14, 1941 – Unnecessary Wheel Bearing Failures on Models 640 and 641 Care must be used when assembling...