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E. Testing the Lighting Coil:
The efficiency of the lighting coil can be checked by
connecting an ammeter of approximately 2 ampere reading
capacity in series with the battery fuse as indicated in the
drawing below.
Start the engine and measure the current at approximately
2,500 rpm's and approximately 8,000 rpm's.
With the key switch in the "ignition only" position, at 2,500
rpm the current should measure 0.1 amp. Voltage should
register more than 6 volts. At 8,000 rpm's, the voltage
should register less than 9 volts. If the measurements are
within plus or minus 10 to 20 per cent of the standard rate
indicated, the coil is satisfactory. If it is above or below these tolerances, the lighting coil should be
replaced.
F. Selenium Rectifier:
The selenium rectifier transforms AC magneto into DC current for charging the battery.
Running the machine in the daytime without the battery or fuse in place will damage the rectifier and burn
out light bulbs. The battery should be kept fully charged. Specific gravity at approximately 70E F. should
read 1.260 on a fully charged battery.
G. Battery Charging (50-60 Spt)
Listed below are two methods of increasing the charge rate on the B/S 50-60 Sport.
1. Connect both the yellow wire and the white wire from the key switch to the yellow wire from the
charging coil in the magneto. The white wire from the magneto is left disconnected. This wiring change
will slightly increase the charging rate.
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