suzuki gs450 indicators

[bulldogge]

hey all ....the indicators on my 1980 suzuki gs450 will flash normally until i put on the headlights then they will stay on but not flash...i have a new fully charged battery..any help would be great ...cheers ...

[lb99]

go thru all of the plugs and stuff in the wiring loom , give em a good clean (maybe use contact cleaner ore something) and try again, check flasher unit, what happens to the headlights when you toot the horn?

[T.W.R]

Possibly if the wiring has been apart recently the wires have been mixed up. A lot of Suzuki models around that era ran a secondary lighting circuit for pilot lights within the front indicators. So it could just be a case of testing the circuit to find the appropriate connections

[F5 Dave]

So will they flash with the bike running?

How low does the voltage drop over the battery when headlight is on? Is the bulb over size? (ie 55/60 is as big as can go) or perhaps rear bulb not running 5W filiment. Suzi's of that era are marginal in the electrics.

Might be internal resistance of the flasher unit or a connection to it if both indicators act the same. If 2 prong type supercheap do them for $6