Topic: Question on turn signals

[jay72chevy1]

My cb 750 has juice at turn signal just not blinking. What numbers are the blinking switch? Maybe i have wrong one in it. Right now the back left rear turn signal is working only.  The opposite side of that one has juice not blinking tho. Anyone help me on this? I got it running fine now with lots of power. I just want to get it legal now. Thanks for viewing my post

[333]

Have you checked the ground?  And the part number is usually not on the part, so trying to identify it to see if it is correct will be difficult.  Also, the exact model 750 you have will be necessary to look up that number.

[jay72chevy1]

1973 cb 750 k model. It has numbers on the blinker switch. I did replace it. Now i thin its the wrong one. I wonder what one is for it. As for the ground the wire grounding to the light itself or the wire going to it with the power? I am not understanding sorry. Ill check the ground on turn signal itself. Thanks for the reply

[Johnie]

I suppose you already checked for corrosion on the inside of the socket?  I had some corrosion there and my symptoms were the same as you describe.  Be sure to check all bullet connections for corrosion.  Your basic #1157 is your double filament bulb for running lights and blinkers found on the front.  The Stanley 1073 is the single filament that came out of an older Honda I have with only blinkers on the back.  Good luck with it.

[OldSchool_IsCool]

As Johnie is suggesting, corrosion in the connections, even a little bit, can reduce current flow to the point that the bi-metal of a conventional flasher module will not break contact (thus no flash).  Try tracking the wires, clean all connections with sandpaper/emery board and pack them with dielectric grease.

Alternatively, switch out the flasher module with a modern digital one.

[fuzzybutt]

could another cause of the signals not flashing be because i have smaller bulbs? if so can i just put a resistor in?

[OldSchool_IsCool]

Fuzz,

More resistance (placed in series with the bulb) is heading you in the wrong direction, Putting it in parallel to the bulb might help, but getting the right resistance value will be tricky.  Consider the modern solid state flasher module instead.

[fuzzybutt]

any idea on where to get one?

[OldSchool_IsCool]

Any auto wupply store will have them, and probably right on the rack next to replacement bulbs.  If the price tag is under $10, its likely a standard module.  More then $10 and its likely solid state or digital.