Question about 2001 KTM Supermoto 125

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Battery OK

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I was told that you have to charge the battery in ktms. That they don't charge themselves while the motor is running like a car. This is coming from a guy who has a 400sx and put the starter on it. He has to trickle charge the battery before every ride (or after I guess) Tell me this isn't true!I have an '03 525 EXC and my battery died after a day of riding and using the happy button. I could still kick the bike over which makes me think that the battery isn't required for the normal operation of the bike. Anyway when I got home I pulled the seat/covers/tank off and checked the votage accross the battery. It was around 11.4V. I started the bike and measured again. Still 11.4V !!! I finally decided to check the voltage regulator and BINGO a wire had not been correctly inserted into the plug from the factory !! I reconnected it, kicked her over and now the voltage accross the battery measures 12.2V !! So, the answer to your question is that the battery is constantly charged when the bike is running, and there should be no need to charge it unless it has run down by overuse of the starter or some phantom power sapper,,,

Posted on Nov 10, 2008

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