Question about 1991 Yamaha FZR 600

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Yamaha FZR 600 not charging correctly with the lights on

The FZR is charging correctly with the lights off ( checked with a meter) as soon as the lights are turned on there appears to be no charge going to the battery and the voltage on the battery begins to drop.

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  • kcran850 Feb 25, 2009

    my fzr 400 k reg is gharging the battery at 13,9v at 1500rpm with the lights off,lights on it drops to 12.7,

    At 3000rpm it is showing 13.v. the battery is new and it goes flat after 2 or 3 days running.

    How do check the alternator or regulator.

    thanks

  • Anonymous Mar 20, 2009

    gfdgggg

  • Anonymous Apr 29, 2009

    takes about 4-5 days to kill charged batt on my FZR 600

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I HAD THE SAME ISSUE. CHECK YOUR VOLTAGE OFF O THE MAGNETO, IT SHOULD BE IN THE 25V RANGE. IF THAT CHECKS OUT OK CK THE VOLTAGE IMEDIATLY AFTER THE VOLTAGE REGULATOR, I BET IT IS BELOW 14V. THE FZR IS PRONE TO HAVING THE REGULATOR GO BAD (THE OLDER ONES HAVE NO COOLING FINS AND THEY BURN THEMSELVES UP). THE BEST ONE TO BUY IS THE NEWER VERSION FROM A 1999 FZR, IT HAS COOLING FINS WHICH GREATLY PROLONGS THE LIFE. YOU HAVE TO DO SOME SLIGHT WIRING MODS, BUT NOTHING ANYONE COULDN'T DO. SEARCH FOR FZR REGULATOR UPGRADE AND IT WILL EXPLAIN EVERYTHING! I HOPE THIS HELPS! GOOD LUCK!

Posted on Mar 22, 2009

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The 93 fzr 600 is realy weird. itll run the battery down FAST. it could be th lights are sucking the juice straight up

Posted on Jul 17, 2009

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Start the bike,and while it's running,Unhook the battery,If it dies,Your alternator is bad,weak or you have a wire off somewhere.

If it continues to run,test the power at the battery cables while they are unhooked,Do this with light off and again with lights on,You should have a minimal drop in voltage + or- 2 volts from the normal 12 volts. Any more than that and you will need to replace the voltage regulator.


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Posted on Feb 11, 2009

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