Question about 1981 Suzuki GS 750 L
Your generator is on the left as you sit on the bike. The GS/gsx Suzukis do have issues with charging the battery.
1. Charge the battery.
2. Use a multimeter/voltmeter across the battery, do you get 13.5volts dc or more? You may need to rev the bike to 2-3000 revs.
3. If the meter just shows battery voltage, you need to check the regulator/rectifier unit. This will be under the side panel (usually left side) and will be a square metal unit with cooling fins. Check all the connections are clean and rust free, ncluding all the earth connections. Test your charging again.
4. If its still not charging, trace the 3 wires that come from your alternator and connect to your regulator. Disconnect them and use a meter to check between each of the 3 wires. You should get 60-90 volts AC. If not, you need new alternator windings. If you get the correct reading, you need a new regulator rectifier unit.
Posted on Aug 03, 2010
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Posted on Jan 02, 2017
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