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Discussion Starter #1
I have a rhino 660 that has no electrical power when I turn the key switch, no dash , no lights, no anything. It has fairly new battery, key switch. I've already have done what STEVE S said to do for the grounding wires, (pigtail, engine cable to ground) done this way back. The rhino does this randomly, does fine for a few rides, then another day go to start it turn key & nothing. Any help would be great thanks.
 

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Clean the ignition switch contacts????
 

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Discussion Starter #3
Thanks,rhino rat I'll check that, the key switch is almost new & I put dielectric grease in there when installed it. anybody else have any suggestions?
 

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Main fuse but i dont know if the 660’s have them like the 700’s


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Discussion Starter #5
One day this happen before no electrical power, I unplugged regulator & dash plug in harness & filled them with dielectric grease & plugged them back up and I had power again. I'm thinking a bad grounding.
 

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On the 660's there is a bullet connector right at the negative terminal on the battery, if it looks burnt you can take it apart and ground it to the frame.
 

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Discussion Starter #8
Thanks,I have already done that as stated in first post, it's to frame behind battery,scraped paint & put d, grease there to.
 

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Discussion Starter #9
I can tell when it's not going to start back. I have a volt gauge installed,when it's got good contact,my volt gauge shows 12 to 14 something when riding, but if I turn key on sometimes when not ridden a few days it will start, but then the volt gauge will fluctuate between 4 & 5 something volts, then I know if I turn key off after its doing this, it will not start back (no electrical power to anything, key switch, dash, no headlights).
 

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This may sound simple but I would strip off all you can to access wiring and while watching the volt gauge you installed start moving and pulling on wires.
 

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Discussion Starter #11
That sounds like a good idea, only I don't even have electrical to volt gauge now,(every things dead like it doesn't even have a battery in it) I seen somewhere on another site that someone just wiggled the back of key switch harness & got back electrical power, I tried that & didn't make a difference on mine.
 

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If you have access to a stock cdi change it to see if that works.
 

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Discussion Starter #13
Ok, I have a stock cdi in it, but I do have a cheapo caltric brand cdi that's new, bought for a backup, I will try this maybe sunday.
 

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Discussion Starter #14
Didn't get a chance to put the caltric cdi in today, but I think I had it in there before long time ago when it would do this, but will try it again, I did jiggle a few wires underneath with key on to see if it would make dash flicker or come on but didn't do nothing.
 

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Discussion Starter #15
Checked fuses with a 12v test light & also pulled them out & probed inside housing , when pulling fuses out it also lifted fuse box out a little (where wires run underneath) don't know, but must have moved the wire with the short or whatever, & went to turn key on & had power again to dash , must be a short in wires under fuse box going to fuses, also checked fuses in starter relay, also moved it off its holder, ?
 

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I was having the same issue as well. I pulled the battery out and pulled up all the relays to find the wires underneath and the fuse holder wires. There was lots of corrosion and loose wires. If it’s packed full of mud chances are there is corrosion and you will see almost green/white powder at the terminals that may be loose or bad.
 

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This happened to me and I checked all fuses and all fuses looked fine. Mind you I do have a 700 but there is a fuse box on the passenger side that takes a green 30 fuse. This box loses connection once old and you need to replace the whole fuse box. Move it in and out with the ignition on and you should see something. Also if you see nothing try to turn the key on and off this happened to me when figuring out my issues sometimes it would flicker but sometimes it wouldn't do anything without fully turning the key back. I have no idea why but I go out in the bush far and I had this happen and I thought for sure it had to be a wire or something I hit as I just bought a new battery x2. (I have two batteries)
 
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