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Can bad wiring Or shorting due 2 rainwater drain a battery on Pulsar 150DTSi

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  • Can bad wiring Or shorting due 2 rainwater drain a battery on Pulsar 150DTSi

    As soon as it started raining my key stopped turning(even though it was new set original ) and when I would use the indicator it would get stuck and show a constant light or not work.
    I guessed water has gone in and is shorting the wires or something.
    Since I had to mess with the keys I would have to try the auto start a couple of times before getting it right.
    Then one day my indicator was on but I did not notice it. I kept my key on and was speaking on the phone.
    This drained my battery I guess Even though it was 10 minutes.
    I tried starting it and this was the first time in 3 starts it did not start by the time I tried adjusting the key it was 6 starts and then the battery kind of died. I tried honking it did not work. I started the bike with the kick and drove
    Then same day I took it to the Battery station.
    They said water was less and then charged it. It took more than a day to charge

    Then he said the battery is not allright. They were testing it it showed 10.4 and would go to 11 before coming to 12.4 and it stayed there for 3 tests
    Now a couple of days no rain and the batter was working right.
    I had to really raise the throttle a lot after hitting the ignition for it to start
    and it started this way for 2 days.
    Sometimes it would not start after 3 tries if I adjusted the key it would start again.
    Now it rained and thats it the key again became worse.

    And now it stopped. The bike wont start even though they key is allright( As I the bike starts with the Kick. YES I forgot to mention it. That I know there is a problem with a key as it would not start with the kick too).

    The Horn works but the bike wont start.

    Now I think there is a problem with the Bike. And the wiring.
    But when I went to my mechanic a nice guy he told me charge the battery and then only he can check.
    He is just a street smart mechanic he said no wiring problems will not drain a battery.

    And my scientific sense is telling me that if a wire is getting shorted and its getting earthed or the indicater is on(but like I said does not work) but it sure takes away power then the battery can drain.

    But these guys have some fixed rules they never change so I wanted to confirm here if this is possible.

    The battery has not become dead again but it does get low and if I raise the bike enough it does get charged.

    So if someone could confirm that Maybe it could be a wiring and also starting problem(as I have to really raise the throttle) maybe I can just turn my bike and keep it on idle for half an hour so the battery is charged and then take it to my mechanic and make him check it.
    If he comes to know battery is draining he won't check the wiring that is for sure(though there is a problem with a key but these guys can get really dogmatic).

    So please confirm this.
    Thank you. I don't want to change the battery I have a feeling it will still start as it does start if I put the key in right and Give it a full throttle

  • #2
    Re: Can bad wiring Or shorting due 2 rainwater drain a battery on Pulsar 150DTSi

    Query Approved

    The advantage of a bike with a kick start is that you can afford to play russian roulette with your battery! So yes don't change it till you are 100% sure it is dead.

    It does seem to be an electrical issue. Could the engine kill switch be the culprit?
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    • #3
      Re: Can bad wiring Or shorting due 2 rainwater drain a battery on Pulsar 150DTSi

      Simply brainstorming here.

      Pulsars are notorious for such electrical problems during rains.

      The extra throttle wring might be suggestive of water seeping into the fuel tank ?
      You Start Your Life with a Full Pot of Luck and an Empty Pot of Experience, the Object is to Fill the Pot of Experience Before you Empty the Pot of Luck.....!!

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      • #4
        Re: Can bad wiring Or shorting due 2 rainwater drain a battery on Pulsar 150DTSi

        Originally posted by rajsanand View Post
        As soon as it started raining my key stopped turning(even though it was new set original ) and when I would use the indicator it would get stuck and show a constant light or not work.

        --------------------------------------
        So please confirm this.
        Thank you. I don't want to change the battery I have a feeling it will still start as it does start if I put the key in right and Give it a full throttle
        Hi,

        Fill the following:

        Model of the bike:
        Battery make and year of Purchase: Still using Maintenance battery..??? I recommend to switch to Non-maintenance
        Any wiring modifications:
        Voltage reading of battery at switch off state of bike after resting for more than 3-4 hrs:


        Should be atleast 13.2-13.+ for a healthy battery and effective start of the bike when you press the start button
        IF your battery is showing 11-12... volts, it indicating the life of it has come to an end.

        The Models with BCU are more complicated with electrical issues.

        One thing is... if there is a short in the bike the fuse would burn to safe guard remaining electricals.

        I recommend you to go to a mechanic and ask him to totally remove the headlight and bikes side panels. Clean all (everything including BCU, Regulator, CDI, Switches) the sockets with petrol and let them dry. If you have sufficient tools you can do yourselves. Its not a tough job. It will rule out all the issues if theres no problem with the parts.

        Battery even though having less voltage may be able to power the horns but may not be able to start the bike. Keep this point in mind.

        Battery at its ending stage behaves strangely. Simply sometimes it may work and sometimes it may not.

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        • #5
          Re: Can bad wiring Or shorting due 2 rainwater drain a battery on Pulsar 150DTSi

          The bikes with BCU disable the starter after 3 continuous cranks, it can be tricked by turning the key on&off.

          Normal flooded lead acid battery will have 12-13v at full charge.

          Even if you discard the battery issue your bike should work flawlessly with kick,


          First take the bike to the mechanic to get the normal mechanical parts resolved(You mentioned bike starts with more throttle)
          *Spark Plugs
          *Air filter
          *Carburettor draining
          *Water inside fuel tank

          As for the electric start and ignition components,
          -Bypass the key mechanism entirely just to check whether it's the culprit
          -There is a clutch switch which can go wrong(You can eliminate this one by starting the bike in neutral)
          -There is a relay on the left side of the battery with exposed terminals this is for the starter motor(check for loose contacts)
          -There is another small relay on the right side of the battery this is for the ignition (check for loose contacts)
          -Finally there is a fuse under the seat for the RRunit check for corroded terminals

          Battery Voltages for flooded lead acid battery-
          12.4-12.6 after sitting idle
          13.5-14V when the bike is running with headlights off.
          Pulsar Engine Oil Filter Cleaning

          D.I.Y. Surface Discharge Spark Plug

          My Pulsar's exhaust sound

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