Honda CB350 CL350 [146/219] Service tester 135

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5 9 SERVICE TESTER 135 5 9 SERVICE TESTER Most troubles occurring in vehicles are concerned with troubles in electric parts Those troubles pertaining to mechanical parts can be detected and the causes determined visually or by hand however for troubles with electrical parts since the most important voltage levels or current values cannot be seen directly it is difficult to judge the serviceability unless measuring devices or testers are used Attempting to determine witout using measuring devices is a waste of time and satisfactory result cannot be obtained To determine electrical part troubles it is necessary to use a proper measuring device and to do testing scientifically and quickly Honda Motor Co Ltd recommends the service tester manufactured by Jonan Electric Co Ltd as the tester for Honda motorcycles The followings are just the outline of the handling instructions of the service tester For further details refer to the operating instruction leaflet attached to the service tester NOTE The explanation for usage is based mainly on the type ST 4B4 service tester manufactured by Jonan Electric Co Ltd Fig 5 84 A Operating Instructsons Power source For the power source a battery is used either 6V or 12V However when testing coil only use a 6V battery for a 6V coil and a 12V battery for a 12 coil Tachometer switch The tachometer switch should be turned On only when using the tachometer in all other cases turn OFF Fig 5 84 B Meter Reading The meter scale is graduated in various colors and corresponding to the individual colors the applicable colors are marked on the switch When reading the scale the scale can be easily identified by following the same color Fig 5 85 On the switch selecting positions resistance insulation DC voltage DC amperage and AC voltage X 10012 and X tF are marked These indicate the magnification and unit of numerals Fig 5 86 Example When measuring resistance if the meter pointer indicates 0 5 it means that the resistance is 5012 if 2 5 it is 250i2 since the mark is X 10012 Fig 5 86 Meter scale panel A

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