silicone rectifier


Information and questions on GL1200 Goldwings (1984-1987)
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dagodave
Posts: 22
Joined: Wed Sep 12, 2012 3:45 am
Location: Chester England, United Kingdom
Motorcycle: 84 aspencade 1200 cb250 rs

silicone rectifier

Postby dagodave » Fri Sep 21, 2012 4:19 pm



What is the silicone rectifier, where is it,what does it do,why do i need to replace it, and lastly how do i identify it I ask these questions because i am told if it is not in place the bike will not start Best wishes Dagodave 



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thrasherg
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Re: silicone rectifier

Postby thrasherg » Fri Sep 21, 2012 5:40 pm

Usually the silicon rectifier and regulator are a single unit, it is usually black about 2 inches square and has fins on it to keep it cool.
It takes the alternating current created by the engines alternator/generator and converts it to DC. The Dc is then fed to the regulator which reduces the voltage to around 13.8 volts, which is then used to charge the battery and run all the electrics on the motorbike. If the rectifier/regulator is missing or is defective, the bike should start, but as you are not recharging the battery the electrics and engine will eventually stop and then not operate until the battery is recharged. If you turn on the ignition and all the electrics are dim then the battery is low on charge and will prevent the engine from starting. The only way to know if the unit is working/missing is to really start the engine and measure the volts across the battery, they should be higher with the engine running than with the engine not running, or you have to disconnect the rectifier/regulator from the motorcycle electric system and check it with a multimeter. Hopefully someone can tell you where it is physically located on your wing so you can check (assuming you have just bought the bike). If you have had the bike for a long time then the rectifier will not suddenly disappear, but they have been known to go bad, but far more common is a plug that connects the rectifier to the alternator gets corroded, overheats and melts causing the battery to go flat and the electrics to fail.. If you do a search for "3 yellow wires" on this site you will see lots of links where people tell you how to remove the plug and solder the yellow wires together, but you do need to check the alternator first (You need a multimeter for that).

Regards Gary

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Phunnybone
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Re: silicone rectifier

Postby Phunnybone » Fri Sep 21, 2012 6:07 pm

Don't know for sure on your '84, but on my '85 LTD the regulator/rectifier (commonly seen in the forum as R/R) is under the false tank on the left side (as seated on bike) even with the lower side of the left hand pocket in the fairing.

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tom84std
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Re: silicone rectifier

Postby tom84std » Sat Sep 22, 2012 12:12 pm

I'm not sure but it could be that Dave may be asking about the other silicon rectifier located in the solenoid/neutral switch circuit.
Dave, it's a little black plastic cube about 10mmX10mmX20mm with a light green/red wire on each end. It actually has a diode symbol silk screened on it. I believe you'll find it under either the seat or false tank. It's main purpose is to insure the neutral lamp does not illuminate with only the making of the clutch switch. To isolate the clutch switch from the neutral switch.

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dagodave
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Location: Chester England, United Kingdom
Motorcycle: 84 aspencade 1200 cb250 rs

Re: silicone rectifier

Postby dagodave » Sat Sep 22, 2012 4:06 pm

thank you all for your positive input i can now i hope work out what is what many thanks froma very new 1200 goldwing aspencade owner (there are not to many left in england) dagodave

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WingAdmin
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Re: silicone rectifier

Postby WingAdmin » Mon Sep 24, 2012 2:57 pm

In its wiring diagrams, Honda refers to the neutral diode as a "Silicon Rectifier" in some places, and a "Silicone Recitifier" (incorrect term) in others. In either case, it's just a diode.

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dagodave
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Location: Chester England, United Kingdom
Motorcycle: 84 aspencade 1200 cb250 rs

Re: silicone rectifier/diode

Postby dagodave » Tue Sep 25, 2012 11:41 am

many thanks wing admin this site is great as british goldwing owner i think this is a great resource plus its nice to chat to other people in different places or places you would like to visit dagodave

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wingincolorado
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Joined: Tue Apr 26, 2016 6:34 pm
Location: colorado springs,co
Motorcycle: 1985 gl1200I

Re: silicone rectifier

Postby wingincolorado » Tue Apr 26, 2016 6:36 pm


Is it possible to bypass this diode?

I think mine fried and the bike does nothing with key on and starter button pushed now.




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