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Thread: 96 TW200 Electrical Question

  1. #31
    Senior Member jtstdub's Avatar
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    I wonder what kind of voltage we would get if we disconnected the head light... That might be a bad thing if the voltage goes too high... I realize there is a regulator but I would like to know..
    If I have time I will test and see.

    Jim
    Hidden Content 2003 Tw200, 2014 BWS 150, 1969 VW Beetle Baja, 1972 Super Beetle and a 1987 Suzuki Samurai.

  2. #32
    Senior Member scotti158's Avatar
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    The advantage of the headlight relay system is that it lessens the load on the battery during initial start up, giving you a little bit more cranking amp potential. The disadvantage is that there is one more component in the system that has the potential to cause trouble. I prefer the simplicity of a headlight on with the key system myself.
    2013 Yamaha TW200

    1996 Yamaha TW200

    1995 Kawasaki KLR650

    2002 Yamaha RoadStar 1600 with sidecar

  3. #33
    Super Moderator Purple's Avatar
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    I’ve often wondered at the two systems on mine – as the starter is clearly battery driven, my ’98 would seem to have the advantage

    “Back in the day” – we’d always switch the lights off before trying to start a cold engine – my ’98 seems like a compromise in that respect …..

    (I'm aware that this is a bit of a thread hi-jack, but it passes the time until the OP gets back to us) .....
    (Warning - Forum may contain nuts) ...... Hidden Content

    TW200 - 1998 - Japanese import - 5000 miles on the clock - TW225 Special Edition 2007

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  5. #34
    Senior Member jtstdub's Avatar
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    Sorry if this is a hijack.... I will delete if OP or any are offended!


    Quote Originally Posted by Purple View Post
    I’ve often wondered at the two systems on mine – as the starter is clearly battery driven, my ’98 would seem to have the advantage

    “Back in the day” – we’d always switch the lights off before trying to start a cold engine – my ’98 seems like a compromise in that respect …..

    (I'm aware that this is a bit of a thread hi-jack, but it passes the time until the OP gets back to us) .....
    Well I prefer the relay... The draw of accessories and lights going through the contacts of the key switch mechanism is only going to last so long... And I guarantee you that it will start acting intermittent first.
    Many older cars have no relays and will exhibit all kinds of nasty troubles... Even newer cars etc will finally give up on switch contacts in the lights, fan controls and the list goes on...

    A key switch that is worn and causing very intermittent symptoms, no start, engine dying... Out of a 89 Suzuki Samurai... I fixed the worn section by peening the metal from the back side. I then installed relays for run and accessory... No more issues!

    Am I going to install a relay on my TW for ignition and lights? If I were to want to charge my phone and anything else damn rights I would!

    1011161454.jpg1011161329.jpg

    Here is the repaired part.

    1011161510.jpg

    Jim
    Last edited by jtstdub; 04-21-2017 at 03:14 PM.
    Hidden Content 2003 Tw200, 2014 BWS 150, 1969 VW Beetle Baja, 1972 Super Beetle and a 1987 Suzuki Samurai.

  6. #35
    Junior Member Miro's Avatar
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    Recently, I laid my hands on a '99 TW125 from Switzerland. It is supposed to be the same as TW200. Wire harness p/n is 5RS-82590-00. A headlight is operated by on/off switch, then pos/low/high. Also, voltage is supplied by a battery. I also noticed one termo-switch and carburetor heater. Interesting detail. My '87 TW200 has no such thing.
    Headlight on my '87 TW200 comes on with the engine and it's connected directly to the magneto.
    YAMAHA TW200 '87.
    BMW F650ST '98

  7. #36
    Super Moderator Purple's Avatar
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    Yep - the 125 has a carb heater ....
    jtstdub likes this.
    (Warning - Forum may contain nuts) ...... Hidden Content

    TW200 - 1998 - Japanese import - 5000 miles on the clock - TW225 Special Edition 2007

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