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  • 2 Post By raghav.glass

Thread: Bajaj Pulsar - All versions - Rewinding & automatic BCU switch

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    Default Bajaj Pulsar - All versions - Rewinding & automatic BCU switch

    Bajaj Pulsar 150 UG3.

    Current mods :

    2 x hella rallye 55w (110w of lights)
    Bosch horns
    All DC connection
    Ape RR
    regular 9Ah battery.

    I have wound my coil with 19.5g wire on 7 cores.

    Only one AC output from coil. see circuit and ask for details.

    with this circuit, the bcu turns on/off automatically and is full dc.

    I have this for about a week now, with high rev riding.
    checked all the circuit temperatures. all fine.

    just use 20A rated wire to connect to battery. and fix the RR in a place with good air circulation.
    Name:  thumb_4106.jpg
Views: 2631
Size:  83.4 KB The 30A rated diode. it allows current only in one direction. see sign properly.

    I use this circuit for mor that 10A. so it must be safe.

    Name:  Pulsar BCU automation - Raghav Rithvik.jpg
Views: 4315
Size:  14.4 KB
    DeVille and abhijit_joy like this.

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    Default Re: Bajaj Pulsar - All versions - Rewinding & automatic BCU switch

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    Default Re: Bajaj Pulsar - All versions - Rewinding & automatic BCU switch

    one for no-return and bcu relay
    other to keep proper supply to relay.


    components:
    Ape RR or GC1000 RR
    20A rated wire 1m
    spst relay x 1
    U1 - 7812 regulator x 1 (will have 3 pins (1-dc in, 1-dc out, middle is ground-common)
    C1 - 50v 4700uF Capacitor x 1
    R1 - 1k or 2k resistor to discharge the capacitor after engine off.
    D2 - IN4007 diode (small for relay circuit, unnecessary, just for sakes)
    D1 - large diode, dont know number (ask for 20a diode, will look like a big bolt-nut)
    Thick clips to harness to battery, like the original wire


    Contact me for any clarification. raghav.glass@gmail.com

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    Rusted DeVille's Avatar
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    Default Re: Bajaj Pulsar - All versions - Rewinding & automatic BCU switch

    Quote Originally Posted by raghav.glass View Post
    one for no-return and bcu relay
    other to keep proper supply to relay.


    components:
    Ape RR or GC1000 RR
    20A rated wire 1m
    spst relay x 1
    U1 - 7812 regulator x 1 (will have 3 pins (1-dc in, 1-dc out, middle is ground-common)
    C1 - 50v 4700uF Capacitor x 1
    R1 - 1k or 2k resistor to discharge the capacitor after engine off.
    D2 - IN4007 diode (small for relay circuit, unnecessary, just for sakes)
    D1 - large diode, dont know number (ask for 20a diode, will look like a big bolt-nut)
    Thick clips to harness to battery, like the original wire


    Contact me for any clarification. raghav.glass@gmail.com
    @raghav.glass Can you please post pics of the actual parts- the wiring harness, BCU, relay connected etc? Mechanics and friends helping out still can't understand how to complete this successfully
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