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Thumper · 12-30-2023, 05:54 AM

It is a pain in the neck dealing with slow voltage drain

First, disconnect the battery and charge it. Check the resting voltage with a voltmeter/multimeter...should be close to 13 volts. Then connect it and see if the voltage drops. That will verify that it is the bike, not the battery.

Then, methodically disconnect systems, like the lead to the starter relay, then the CDI unit, light switch (left side controls), ignition switch, starter button and hazard flasher (right controls switch), regulator/rectifier, etc... See if/when the voltage drop goes away. Hopefully, this will help you isolate the problem.

If that works, you can drill down on components if it isn't already obvious.

12-30-2023, 05:54 AM	#2
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,388	It is a pain in the neck dealing with slow voltage drain First, disconnect the battery and charge it. Check the resting voltage with a voltmeter/multimeter...should be close to 13 volts. Then connect it and see if the voltage drops. That will verify that it is the bike, not the battery. Then, methodically disconnect systems, like the lead to the starter relay, then the CDI unit, light switch (left side controls), ignition switch, starter button and hazard flasher (right controls switch), regulator/rectifier, etc... See if/when the voltage drop goes away. Hopefully, this will help you isolate the problem. If that works, you can drill down on components if it isn't already obvious. __________________ -2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it Last edited by Thumper; 12-30-2023 at 11:06 AM.
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