Q #1. Anyone have the GE bulb number for the miniature bulbs that light the tach and speedo. The tach light is out. I pulled the bulb assembly for the speedo and all it says on it is "12 V 3 W" (obvioulsy aftermarket). Pulled the bulb on the tach side to replace it and all that is visible is the "GE" (bulb number is gone). The HD # is 71092-68A. Sold on the flea for 10-16 bucks each (***** that).

Q #2. For the last week I have been banging my head into the ground trying to figure out why I have no right turn signal...front or rear...when I push the right turn signal button, my tach and oil light bink instead.


All other lights function as they should...horn, left turn signal front and rear when I push the button, starter button fires up the motor, high beam and low beam, brake lights front and rear from handlebar and brake pedal, kill switch. oil light goes off whne motor fires.

What I have done...

a. checked the right rear bulb...good to go

b. checked continuity in the wire from the base of the bulb to the circuit breaker...good to go.

c. checked to make sure there were no wires that were not connected properly or somehow touching each other that shouldn't...good to go

d. checked to make sure I had all wire connected to the correct posts on the 3 circuit breakers...good to go

e. checked wires (brown and green) from button to the plug-n-play inside the light housing...good to go

f. changed out the button because I could not get a good reading on it...now its good to go for sure

g. pulled female connectors and check continuity if each wire..good to go

h. replaced oil and neutral light

i. replaced flasher

i. reconnected all female ends to their respective male components. When I did this I left the femael plug-n-play off so that I could see that all the connectors were not touching one another.

j. connected the battery, turned on the ignition and I still have no right turn signal and the oil light and neutral ligh blink instead.

Pic from the service manual and labels so that you folks can square me away. It is grounding out somehow some way but I am stumped.

 

I been in that spot - memory was the ground wire maybe the head light cover is grounded to the forks top tree

your feeding to the nest and the flasher is feeding the system just not the right bulbs its not connected to

But the ground is connected in the system as the bulbs do not ground at the fixture - they common - so your back feeding oil gen what ever

 

When I have those kinds of problems... I isolate the Blinkers with temporary wires,, externally.. even blinkers that are Not attached to the bike..
I have a Plethora of "jumpers" around the farm...

 

Q1, A 57 , I use a 1895 A little brighter

 

Well, a bit of progress...maybe.

Yestedray I went back into the headlight bucket to try and isolate the problem. When I remove the flasher from the mount at the bottom of the headlight bucket, and I depress the right turn signal button, the oil signal and neutral lamp do not flash. And of course since the flasher needs to be grounded, neither left nor right turn signal light activates.

So my thought is that tha problem lies within the wires associtaed with the flasher.

Pic of the flasher connection and routing



Pic of 6-pin connector and routing



...and I will need to remove these caps over the lines so that I can isolate the lines and test individually for continuity




A. Following that I think? I can do as follows (tho not necessarily in the order liseted) and test as I go

#1 Replace 15 amp accessory circuit breaker

#2 Disconnect orange wire on stop lamp switch

#3Replace flasher (did that and problem still persists)

#4 Disconnect wire on bottom of tach

#5 Nothing to do on this since it is just a common wire used to keep the other lines hot

#6 Disconnect wire on horn

B. The green wires for the flasher go to the left and right directional switches.

#1 Replace the right directional button (done that and the problem still persists)

#2 Separate the connector and check continuity of wire from button to the connector

#3 Disconnect the 2-pin connector for the rear directional lights

C. Check for bad ground wire that connects (grounds) the speedo and tach. (Not related to the flasher or 6-pin connector but definitely related to johnjzjz's thoughts)

racepres,thanks, good idea, went out and got sonme 'gator clips.

baird, thank you. Ordered them from Amazon at a fraction of the ebay pricing

 

Hello Panz, did you ever check for power at the signal sockets? You said you checked wires for continuity but I would check for power with a test light too. Maybe, possibly power is being supplied where it’s not supposed to go. And if there is power at the signals try running a ground wire directly from the bulb base to ground, then if they work you know you have a bad ground somewhere.
I haven’t tried it but maybe like a 18 gauge wire with the strands opened up would fit in alongside the base when you put the bulb in
I just edited my post, but I hope I’m not misleading you in any way but I can take the flasher from its mount on my 1980 and everything works fine. My service manual starts at 1978 1/2 so maybe I don’t have the right schematic, but I did check and the flasher unit is the same part number 68543-64B

 

80Glide, thanks and I did that check earlier.

The good news is that I found and fixed the issue after having spent about a half-day going thru almost everything in the headlight bucket that was somehow connected to the flasher and the 6-plug connector.

I took the sissy bar off and removed the bolts holding the fender to the right strut. I removed the right turn signal wire and found this...wire was pinched between the frame and fender strut. The bare wire caused the ground. There were no turn signal when I purchased the bike. I added the signals, wires and two pin connector. Definitely on me for the mistake.



Doesn't take much to screw things up. Replaced the wire, tested the system and all electrical components now work as intended.

Thanks for the assist people. Now my wife doesn't have to look at me when I come as I stare at the walls and do not interact with her as of late because I am writing down or visualizing my next steps.

 

Glad you found the problem. Had a somewhat similar issue on a ‘69 FLH. I would turn on right turn signal and go into the turn and the bike would die. Dead short tripped the circuit breaker. After prolonged search, found pinched wire underneath the wire clip on frame. Electrical issues can be quite frustrating.

 

good you sorted it, I usually simply re wire the bike if theres a fault, easier & quicker than tracing a problem, a few years ago a friend got a butchard about evo sporty & wanted the idiot lights fixed & i gotta admit the way Harley wired them was i think a bit *** about face & seemed to be wired in revers as to what you'd expect via earth/ground wiring, now I know it isnt too hard

 

Truth in that statement right there. Spent the last two weeks on and off working thru the issue. Just trying to keep the bike as close to staock as I can.