Hello out there fellow nortonians. My 74 850 stock roadster has me baffled. The left turn signaL ( FLASHER) works fine with no pilot lite on and with pilot lite on but only turns on but will not "flash" when the low or high beam headlite is on. I noticed that sometimes it will if the motor rpm's are high enough. Also, I noticed last nite while riding in 40 degree farenheit temperatures,that the right turn signals acted the same way until I reved the motor, ( this is the first the right ever acted this way) but the left refused to flash at all even when I reved the motor. What do you think???? Captain
#1. "RE: need turn signal advice" In response to Reply # 0
>What do you think????
As little as possible, but I solved similar symptoms by replacing the flasher unit with a cheap unit from the local auto parts store. Couple of bucks at Shucks vs. $12 from Andover. Had to massage the new round unit into the rectangular holder (round peg in a square hole so to speak), but it solved the problem.
#2. "RE: need turn signal advice" In response to Reply # 1
Careful about installing the round flasher unit in to the rectangular holder... I did that last Summer and the corner of the flasher holder rubbed through the insulation on the rectifier. It cut the output to about 1 amp. The Charge lamp never came on as the voltage was correct, but the engine began misfiring and ran worse and worse. Happened to be nearly dark when I took the seat off and start looking for the problem... Then I saw the tiny spark arcing between one of the rectifier plates and the turn signal flasher mount. Put the flasher on with a tie wrap and a dab or RTV on the rectifier and was good to go.
Check the turn signal plastic bodies for a good ground... you know it is 'supposed' to ground THROUGH the plating on the plastic. A proper ground wire from the bulb mount back to the ground wire in the harness is a proper fix.
Now if the turn signal switch were placed so you could actually use it with out having a double jointed thumb you could stop using hand signals.
The hot ticket would be the LED turn signals and brake lamp and the SPARX left hand switch controls.
#3. "RE: need turn signal advice" In response to Reply # 2
Orlin I feel is on the right track in regard to earthing.
Earthing will lead ~ or NOT ~ lead to some very strange problems all round..
I agree, most of your problem is earthing. I guess it is all about whether you want to retain originality on your bike as to whether you start replacing the original flasher stems. I agree they are right sods of things and its only through perseverance that I still have the original Lucas stems.