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  #1  
Old 29-05-17, 21:52
purplewesty purplewesty is offline
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GSXR 1000 rectifier.

The regulator/rectifier on the Gixxer is getting VERY hot, ie too hot to touch.
The wires don't seem to be too bad though.
Thinking it was faulty I bought a new one but still doing the same.

Any ideas what could be causing this.
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  #2  
Old 29-05-17, 23:02
jo white jo white is offline
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poor earth ?
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  #3  
Old 29-05-17, 23:07
purplewesty purplewesty is offline
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Quote:
Originally Posted by jo white View Post
poor earth ?
Hmm Thanks Jo.

That did occur to me and with the chassis just been recoated I removed down to bare metal and refitted.
May make up another earth wire and try again .
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  #4  
Old 30-05-17, 10:24
gixxerthou gixxerthou is offline
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In my experience, the GSXR1000 rectumfryer does get extremely hot, and yes, too hot to touch. In addition, the OE blade plug tends to melt. Some folk replace the plug with a 30A chocblock, which works well.
Situate the thing forward in the sidepod where Jedi intended, tinned copper wire from the alternator output phases is something I go for, it doesn't oxidise in use.
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  #5  
Old 30-05-17, 11:17
gixxerthou gixxerthou is offline
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Purpleguy, by the way, should you be tempted by an aftermarket type (i.e. Mosfet) instead of repeatedly burning up the OE diode rectifiers - please let me know if it worked for you. I have been tempted, but carry several (ab)used rectifiers to the paddock instead, wallet issues.
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  #6  
Old 30-05-17, 14:26
asklepios asklepios is offline
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Well for the record my GSXR rectifier gets warm, but never as hot as others suggest. Good earthing as suggested and ventilation to permit circulation of cooling air, and some sort of heat sink.
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  #7  
Old 30-05-17, 15:59
westlin westlin is offline
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The thing to do is test. The Haynes manual tells i what to look for. Ive had missing power from my engine for years and ive now tracked it down to the rectifier. It was not supplying sufficient power at revs so on tick over it was charging but ay full tilt the pumps were being starved of power. Car runs like a dream now
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  #8  
Old 30-05-17, 21:24
purplewesty purplewesty is offline
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Quote:
Originally Posted by gixxerthou View Post
Purpleguy, by the way, should you be tempted by an aftermarket type (i.e. Mosfet) instead of repeatedly burning up the OE diode rectifiers - please let me know if it worked for you. I have been tempted, but carry several (ab)used rectifiers to the paddock instead, wallet issues.
I have purchased an aftermarket jobbie as a replacement Gixxer.
Good advice I shall let you know how I get on.
Thanks to all. I'm getting a sparky to check over the loom generally so I shall report back.
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  #9  
Old 13-06-17, 20:56
purplewesty purplewesty is offline
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Still not managed to sort this dratted regulator problem. Chassis earth is good and stator appears to be charging at the correct voltage.
Clutching at straws a bit here but if there was a fault with the wiring on another component such as the fuel pump would this affect the regulator.
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  #10  
Old 13-06-17, 21:01
westlin westlin is offline
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What voltage are you getting at the fuel pump at a)tick over and b) with some revs on. That will at least show if its putting out a sensible voltage. Have you checked the levels per haynes manual
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