Rectifier MOD or not to MOD.

Discussion in 'Mechanics Garage' started by bobdigi88, Sep 27, 2014.

  1. bobdigi88

    bobdigi88 New Member

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    I phoned my mechanic today to see how he was getting on. I know a lot of people are skeptical about mechanics but he's a straight up one who has helped me out for free in the past and has a good reputation. Anyway he told me the rectifier was melted but the stator is kicking out good volts so a new rectifier should be the end of the problem.

    Anyway on a previous thread (perhaps i should have put this there) i got some great info from Pliscin, Normik, Cyborg and Mello dude.

    But before i think about doing any MOD's i just want to check something out. After looking online i've realized that people state the rectifier problems are only on pre 2001 VFR's. Mine is a blue 2001 VFR 800 fi.

    My question is, is it just a case of wear and tear, or is it a problem that's going to keep rearing it's ugly head? basically do i Mod or not?
     
  2. DfnsMn69

    DfnsMn69 New Member

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    You might want to do some more research m8 the Charging system woes cover at least 5th and 6th gen VFRs.. I've had more of my fair share of charging related issues on my 03.
     
  3. Allyance

    Allyance Insider

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    This a very common problem on low voltage, high current systems. All years suffer, the older bikes are more prone to heat and corrosion problems. You need to check every connector for corrosion and poor contact. Corrosion will cause resistance, which will cause heat and melt connectors. The charging system connectors are notorious for causing problems. You also need to check your stator for shorts to ground, I suggest you get a digital volt meter at Harbor Freight or Radio Shack and check the resistance (Ohms) from each of the three legs to ground (with connector apart). There should be no resistance, no reaction on the meter. If meter reacts with very low number, chances are one of the windings is shorted to ground. Stators put out AC Volts that will vary with RPM. Rectifier converts AC to DC and regulates output to a constant DC voltage, around 13.8-14.1 vdc.

    There is a "Drill" in another thread that will take you through all the steps. May be someone will be kind enough to post link.
     
  4. bobdigi88

    bobdigi88 New Member

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    Darn it. Thanks. I was hoping the pre 2001 theory was true. Thanks for putting me straight.
     
  5. NormK

    NormK New Member

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    Does anybody have any info regarding charging problems AFTER the connectors have been removed, everything seems to indicate melting plugs to be the major problem
     
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