/ Register

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Battery overcharging???

Discussion in 'Yamaha 250cc In-Line 4's' started by R Johns, Apr 23, 2008.

  1. R Johns

    R Johns New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Apr 23, 2008
    Hay guys Iv just bought a 1987 2kr fzr250 really stoked with it,it runs mint as real tidy condition for its age.The only thing Iv noticed wrong with it is every time I go for a ride when i park up I notice a small amount of battery fluid has dripped from fluid overflow hose.When I say small I meen about 1 maby 2ml.Guy at Yamaha shop told me it sounds like the rectifier/regulator overcharging while riding,does this sound right and if so can it be fixed without replacing rectifier/regulator?Thanks
     
    R Johns, Apr 23, 2008
    #1
  2. dave

    dave Well-Known Member

    Messages:
    2,184
    Likes Received:
    26
    Trophy Points:
    503
    Joined:
    Apr 13, 2005
    Gender:
    Male
    Occupation:
    Instro tech
    Location:
    Tasmania
    My Bike:
    SV1000
    Is it battery fluid, or engine coolant water from the overflow/fill bottle under the seat???
     
    dave, Apr 23, 2008
    #2
  3. R Johns

    R Johns New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Apr 23, 2008
    Hi Dave thanx for getting back to me.Iv just gone n double checked which hose and its definitely the battery overflow, checked levels they seem to be ok.The guy at the shop where I got it from said he'd replace the battery if it keeps doing it,but im not sure if thats gona fix the problem?
     
    R Johns, Apr 26, 2008
    #3
  4. _M_

    _M_ New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Mar 1, 2006
    sounds like he's having a lend mate, the regulator/ rectifier if over charging will not produce excess battery acid.
     
    _M_, Apr 26, 2008
    #4
  5. dave

    dave Well-Known Member

    Messages:
    2,184
    Likes Received:
    26
    Trophy Points:
    503
    Joined:
    Apr 13, 2005
    Gender:
    Male
    Occupation:
    Instro tech
    Location:
    Tasmania
    My Bike:
    SV1000
    OK - then the next thing to do is get a hold of a multimeter and measure the battery voltage. At idle you should get around 11.5 to 12.5 volts DC, and at around 4,000 to 5,000 rpm expect 13.5 to 14.5 volts DC..

    Tell us what readings you get??
     
    dave, Apr 26, 2008
    #5
  6. R Johns

    R Johns New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Apr 23, 2008
    Hay just done what you said with multimeter,reads 12.5 at idle and 13.7 at 5000rpm.
     
    R Johns, Apr 27, 2008
    #6
  7. dave

    dave Well-Known Member

    Messages:
    2,184
    Likes Received:
    26
    Trophy Points:
    503
    Joined:
    Apr 13, 2005
    Gender:
    Male
    Occupation:
    Instro tech
    Location:
    Tasmania
    My Bike:
    SV1000
    That looks pretty normal for battery charging. I really have no idea why it should weep at those levels, but only a guess that the battery is jiggered.
     
    dave, Apr 27, 2008
    #7
  8. R Johns

    R Johns New Member

    Messages:
    0
    Likes Received:
    0
    Trophy Points:
    0
    Joined:
    Apr 23, 2008
    Sweet thats all good it doesn't seem to be dripping as much so im thinking mabe it was overfilled.Ill take it back to dealer and have him replace the battery anyway.Thanks for all your help this is a prety handy website. <!-- s:D --><img src="{SMILIES_PATH}/icon_biggrin.gif" alt=":D" title="Very Happy" /><!-- s:D -->
     
    R Johns, Apr 28, 2008
    #8

Share This Page