Float-type hydrometer for measuring battery specific gravity

1 To measure SG, remove the battery from the motorcycle and remove the first cell cap. Draw some electrolyte into the hydrometer and note the reading (see illustration 5). Return the electrolyte to the cell and install the cap.

2 The reading should be in the region of 1.260 to 1.280. If SG is below 1.200 the battery needs charging. Note that SG will vary With temperature; it should be measured at 20°C (68°F). Add 0.007 to the reading for

REF»38 Fault Finding Equipment

every 10°C above 20*C, and subtract 0.007 from the reading for every 10"C below 20°C. Add 0.004 to the reading for every 10°F above 68°F, and subtract 0.004 from the reading for every 10°F below 68°F. 3 When the check is complete, rinse the hydrometer thoroughly with clean water.

Checking for continuity

Digital multimeter can be used for all electrical tests

Battery-powered continuity tester

Battery and bulb test circuit

• The term continuity describes the uninterrupted flow of electricity through an electrical circuit. A continuity check will determine whether an open-circuit situation exists.

• Continuity can be checked with an ohmmeter, multimeter, continuiry tester or battery and bulb test circuit (see illustrations 6, 7 and 8).

• All of these instruments are self-powered by a battery, therefore the checks are made with the ignition OFF.

• As a safety precaution, always disconnect the battery negative (-ve) lead before making checks, particularly if ignition switch checks are being made.

• If using a meter, select the appropriate ohms scale and check that the meter reads infinity И. Touch the meter probes together and check that meter reads zero; where necessary adjust the meter so that it reads zero.

• After using a meter, always switch it OFF to conserve its battery.

Switch checks

1 If a switch is at fault, trace its wiring up to the wiring connectors. Separate the wire connectors and inspect them for security and condition. A build-up of dirt or corrosion here will most likely be the cause of the problem -clean up and apply a water dispersant such as WD40.

Continuity check of front brake light

Дата добавления: 2015-10-29