Question about 1978 Yamaha XS 500

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Battery had a few problems recently getting bike to start. & as i sold my main commuter bike on saturday i can spend more time & money on the rs. anyway, when i take my battery off the charger in the house, hook it up & it only shows 11.5v on the lcd! is the battery fucked? at what voltage would the cdi shut down? im hoping its something as simple as a dead battery, (reason for bike not starting) somebody agree with me!, before i buy a new barrery,

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But a fully charged 12v auto battery is 13.2V open circuit no less. I would perform a drop test on the batt, and a S.G test with hydrometer.

Posted on Nov 10, 2008

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