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  • #1

    elec mod question

    1980 xs1100sg. i want to bypass the headlight relay and the reserve lighting device. i know which wires to jumper. after doing this, should i expect anything else in those circuits to function differently? any other known problems with this mod? thanks
    Tags: None
  • #2
    Nope......
    Fast, Cheap, Reliable... Pick any two

    '78E original owner - resto project
    '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
    '82 XJ rebuild project
    '80SG restified, red SOLD
    '79F parts...
    '81H more parts...

    Other current bikes:
    '93 XL1200 Anniversary Sportster 85RWHP
    '86 XL883/1200 Chopper
    '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
    Cage: '13 Mustang GT/CS with a few 'custom' touches
    Yep, can't leave nuthin' alone...

    Comment

    • #3
      Works great only downfall is u lose a little power at start up but it never is a problem for me
      _____________________________________________ 1979 XS 1100 Special "The judge" mods- K&N air pods, 4-1 mac, 147.5 pilots, 57.5 mains, LED turn signal, cafe bars, HEL translucent yellow stainless steel brake line, dyna coil (dc2-1), raptor 660 mc, r6 controls..(sold)

      1982 gs1100e "all business" cafe project
      1980 gs1000g "stock"
      1982 honda express "stretched 10 inch(my daughters scooter)
      2008 jmstar 150cc Chinese scooter ( wife's bike)

      Comment

      • #4
        What is the reason for doing this?
        Nate

        78 XS11 "Matilda" 2H7 000364

        2001 Raptor ACCT, T.C. Fuse Box, TC Bros Forward Controls
        Kuryakyn Iso Grips/Throttleboss/Bar End Mirror, Custom Covered Seat
        Shinko 712s, HID Headlight, RC Performance Exhaust
        Bikemaster Daytona Handlebars, Galfer SS Brake Lines
        Barnett HD Clutch Springs, T.C. Spin On Filter Adapter
        K+N Air Filter

        88 Voyager XII
        81 XJ650 Maxim

        Comment

        • #5
          You'll lose the notification of a dead headlight, and the dimmed high beam as an emergency recovery tool.
          1980 XS850SG - Sold
          1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
          Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
          Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

          Whether you think you can, or you think you cannot - You're right.
          -H. Ford

          Comment

          • #6
            Originally posted by CatatonicBug View Post
            You'll lose the notification of a dead headlight, and the dimmed high beam as an emergency recovery tool.
            Well the headlight not putting out light is a good clue that it doesn't work.....then you just flip to highbeam.

            It just eliminates possible failure points. Nothing all that significant.
            Nathan
            KD9ARL

            μολὼν λαβέ

            1978 XS1100E
            K&N Filter
            #45 pilot Jet, #137.5 Main Jet
            OEM Exhaust
            ATK Fork Brace
            LED Dash lights
            Ammeter, Oil Pressure, Oil Temp, and Volt Meters
            Green Monster Coils
            SS Brake Lines
            Vision 550 Auto Tensioner

            In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

            Theodore Roosevelt

            Comment

            • #7
              Originally posted by natemoen View Post
              Well the headlight not putting out light is a good clue that it doesn't work.....then you just flip to highbeam.

              It just eliminates possible failure points. Nothing all that significant.
              That said, in daytime you can't see that the headlight has gone out, and the fixit ticket for not having a headlight on is a rude way to find out it went out. Then again, I've bypassed my RLU back when I tried that POS LED headlight bulb. Didn't put it back either, as my headlight seems a little bit brighter without it, so that's another reason for bypassing it. I too don't see the warning light as being much of a reason, and if the one goes out, I can manually switch to the other till I can pull over and put my spare bulb in (the one that I don't carry at the moment )
              Cy

              1980 XS1100G (Brutus) w/81H Engine
              Duplicolor Mirage Paint Job (Purple/Green)
              Vetter Windjammer IV
              Vetter hard bags & Trunk
              OEM Luggage Rack
              Jardine Spaghetti 4-2 exhaust system
              Spade Fuse Box
              Turn Signal Auto Cancel Mod
              750 FD Mod
              TC Spin on Oil Filter Adapter (temp removed)
              XJ1100 Front Footpegs
              XJ1100 Shocks

              I was always taught to respect my elders, but it keeps getting harder to find one.

              Comment

              • #8
                thanks for the info.

                Comment

                • #9
                  Also, with all of the SUV's out there while riding in traffic, I can easily check whether my headlight is working just by looking for it's reflection in the body panels of the car in front of me!

                  If you by pass the headlight relay, you might want to put in an On/OFF switch, because it does draw power from the electric start process, and it doesn't take much to weaken the battery to drop the starting voltage to the TCI to near/below the 10.5V NO WORK threshold....then the bike won't start even though the engine will crank!

                  T.C.
                  T. C. Gresham
                  81SH "Godzilla" . . .1179cc super-rat.
                  79SF "The Teacher" . . .basket case!
                  History shows again and again,
                  How nature points out the folly of men!

                  Comment

                  • #10
                    Originally posted by TopCatGr58 View Post
                    Also, with all of the SUV's out there while riding in traffic, I can easily check whether my headlight is working just by looking for it's reflection in the body panels of the car in front of me!

                    If you by pass the headlight relay, you might want to put in an On/OFF switch, because it does draw power from the electric start process, and it doesn't take much to weaken the battery to drop the starting voltage to the TCI to near/below the 10.5V NO WORK threshold....then the bike won't start even though the engine will crank!

                    T.C.
                    +1!

                    Thats why I like my '78! Already has the on/off switch!
                    Nathan
                    KD9ARL

                    μολὼν λαβέ

                    1978 XS1100E
                    K&N Filter
                    #45 pilot Jet, #137.5 Main Jet
                    OEM Exhaust
                    ATK Fork Brace
                    LED Dash lights
                    Ammeter, Oil Pressure, Oil Temp, and Volt Meters
                    Green Monster Coils
                    SS Brake Lines
                    Vision 550 Auto Tensioner

                    In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                    Theodore Roosevelt

                    Comment

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