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Turn Signal Shutoff Reminder


Way back in my youth, I had a 1974 Honda CB 750. It was the only bike that I knew of that had a beeper connected to the turn signal circuit. It reminded you too shut off the turn signals after changing lanes. It's a feature that I really miss on the Concours because I'm forever forgetting and one day, I just know it's going to get me into trouble. I searched the web and found someone who had designed a very basic circuit to make your own; here's how.


This page will bel under construction until I finalize my installation. In the mean time, Marty Rabb is going to tell you how to do it below. In addition, I copied the instructions from the site where I got the original plans but I find their instructions are a bit fuzzy.
 

Parts : These come from Radio Shack.

  • Piezo electric buzzer : Part # 273-060 3.0 - 28 volt DC, 5 mA, 85 dB ( or 273-059 at 76 dB, or 273-066 at 90 dB )
  • Silicon bridge rectifier : Part # 276-1152

Tools & Supplies

  • Wire cutters / stripper
  • Soldering gun, solder, flux
  • Heat shrink tubing
  • Wire

 


Date: Fri, 11 Jan 2002
From: Martin Rabb

The way I did it:

  • Connect a wire from each directional hot lead to each terminal on the bridge marked "AC". 
  • Connect the terminal on the bridge marked "+" to the red lead of the beeper. 
  • Cut the wire to the "-" terminal on the bridge short, as you won't be using it. 
  • Connect the black lead on the beeper to ground. 
  • I mounted the rectifier under the seat, soldered the wires together and used shrink tubing to insulate the wires.
  • Two small screws mount the beeper to the dash.  A right angle screw driver helped a lot.  It's very tight in front of the ignition switch, where I put mine.  I tried double stick mounting tape first, but that muffled the sound too much.

Marty
martyrabb@mcia.net

 


From : http://2wheelerjay.tripod.com/jaysworldofinvention/id3.html


A. Assemble your tools in a neat area.
B,C&D. Spread the wires of the rectifier out & tin the ends. Note where the positive & negative wires are.
WARNING: Don't get the rectifier too hot or you will damage it!
E. Strip & tin 4 wires, both ends.
F. Solder the wires to the rectifier
G. Shrink wrap the open wires to prevent them from touching each other.
H&I. Shrink wrap the entire assembly to help weather proof it. Do Not overheat the rectifier.
J. Solder the positive & negative wires of the rectifier to the corresponding wires of the beeper.
K. Secure the remaining wires to the positive leads of each turn signal. One to each signal, doesn't matter which one goes where. Mount the beeper in a safe spot and secure the rectifier. Make sure the steering does not interfere with the wiring.

 


From : http://www.dirtly.com/turn.html

  • Be sure to clip a heat sink (alligator clip) between the rectifier and the point of soldering to protect it from the heat.
  • Tape or shrink tube all leads and connections as you go.
  • Solder the red lead from the beeper to the positive leg (marked with +) of the bridge rectifier.
  • Solder the black lead from the beeper to the negative leg of the rectifier (directly opposite the positive marked leg)
  • Solder a nine inch or so wire to each of the two (AC) remaining legs of the rectifier.
  • When finished, wrap the rectifier and its leads in electrical tape so that it can't flex and break a lead.
  • The photos are of an installation on a KLR650. The installation on aDR650 is the same except the connections are made to a black and red, and a black and green wire, one of which goes to each turn light. On any bike, one of the leads goes to the hot side wire on each front turn light. You can prove which wire is correct with a volt meter, as they flip-flop from negative to positive as the turn signals are switched from left to right
  • Simply unplug the hot wire going to the turn signal and insert one of the beeper leads into the male pin plug and solder it. Replace the modified pin into its original female socket and repeat the operation on the other side.
  • Velcro the beeper to the firewall tape or velcro the loose wires to minimize vibration and chaffing, and re-assemble

Article By: David J. Morrow

August 2001

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