Author Topic: 1977 it175 blowing lamps like crazy HELP  (Read 232 times)

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Offline Deviinsonn

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1977 it175 blowing lamps like crazy HELP
« on: April 30, 2019, 05:03:21 AM »
My 1977 it175 had only the high beam and rear running light working when I bought it. Now with he rear brake light switch hooked up and new lamps it keeps on blowing. The bike never had a regulator when I had it and cant seem to find where the new single wire regulator goes that I have purchased any help wil greatly be appreciated!

Offline Martin I Henry

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Re: 1977 it175 blowing lamps like crazy HELP
« Reply #1 on: April 30, 2019, 06:46:26 AM »

The regulator should be plumbed into the red/yellow wire coming out of the loom from the crankcase.


If you check your wiring diagram you will see that is the only place it can go.......



Cheers,

Dave R.


Offline fred99999au

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Re: 1977 it175 blowing lamps like crazy HELP
« Reply #2 on: April 30, 2019, 08:00:20 AM »
On my 400D, the lamps themselves are the regulator. If one foes, they all go.

I put 2 "regulators" (it is AC so more designed to clip the peak voltage and keep it under a reasonable level) on mine, one for the headlight and tail light and one for the brake light.

Bloke who sold them told me to only use them under load or they will fail, so only when the headlight is on or brakes on.