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Old 11-26-2012, 03:15 PM   #1 (permalink)
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Smile lights dimming??

have a 97 600 triple polaris...when idling lights dim ..then bright..when riding let off of gas they dim out..tough to see in dark!!...where is the voltage regulator located??...thank's for your time!!
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Old 11-26-2012, 03:46 PM   #2 (permalink)
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pretty sure it should be behind the panel where your key goes. Lift the top and look behind the panel towards the bottom, should be a little black box looking thing with 3 holes in the top. FYI my 2000 xc 500 does the same thing as does my buddies 99 xc 600 and his 06 Indy 500. I think it's normal for the lights to dim a little at low rpms.
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Old 11-27-2012, 03:23 PM   #3 (permalink)
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Most sleds do but I'm curious what RPM does it idle?
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Old 11-27-2012, 05:30 PM   #4 (permalink)
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both my indys do that and on my efi i just increased my rpm and its fine my other sled i let it be besides my efi sled was idleing very low some were around 700 rpm so i increased that to about 1700 to 2000 rpm i hope thats good enough
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Old 12-05-2012, 03:24 PM   #5 (permalink)
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As long as you are idling around 1500-2000 rpm, the lights should be steady, most common problem is a bad ground on the aluminum tab on the voltage regulator to the frame. Take it off, polish it shiny with a wire brush, make sure the mounting bolt is clean, and the frame hole isnt all rusty. I usually replace the bolt with a stainless steel one, then use a lock washer to really bite into the tab and the frame mount metal. That usuall fixes the problem, unless your reg is starting to die. If cleaning does not help, try swapping in a new reg and see what happens.
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Old 12-05-2012, 06:53 PM   #6 (permalink)
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I started a thread not long ago about the same thing on my '91 Indy and was told to look for a bad ground. I would start it, the lights would be ok, then go dim, rev it up and they would be ok... What I discovered was a section of the wiring harness had shifted and was rubbing on the back of the brake disc. It had actually rubbed through and was grounding it self out on the disc periodically, but I guess vibration from revving it up, or the clutch engaging and spinning the disc, would move the harness away and the lights would be fine. I like to think of myself as pretty smart when it comes to mechanics, but I HATE electrical problems! lol I figured it was a bad connection someplace, and figured if I asked here, someone would tell me for sure what to look for, or where to begin. This is a great forum that is full of people willing to help.
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Old 12-05-2012, 07:04 PM   #7 (permalink)
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Good point.....pinched/broken wires are a beetch to track down, in fact, I just fixed my son's 440xcr after taking it out of storage, i noticed the lights flickering and even going out when the handlebars were turned, found out the wires to the heated visor plug had slid down by the hard stop and gotten smashed, exposing bare wire, solder and heat shrink fixed that up.
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