foreman 500 lights and dash electric problems - Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum
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Old 10-22-2011, 09:01 AM   #1 (permalink)
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Default foreman 500 lights and dash electric problems

Can anyone help with some auto electrics ?
Its on the quad which is nearly sorted but I cant get the bloody lights working. When when I turn the lights on, the dash cuts out, digital dash by the way. When I turn the lights off the dash comes back on, video here


Iíve disconnected all the lights. Turn the light switch on and the dash stays on fine.
Put a meter on the light connector terminals and when I turn the lights on there is indeed a 12v feed comes down the tubes and the dash is ok, but as soon I a put any load on, i.e 1 bulb, the dash cuts out. i can start the engine and it runs fine, not affected by this issue
Iíve checked the earth on the light connector is also ok

Could it be the battery ?

Its as if the lights are taking the power away from the dash
The battery is good enough to start the bike
Totally stumped
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Old 10-22-2011, 09:30 AM   #2 (permalink)
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can you barrow a battery and see if the light problem goes away? have you checked all the grounds ? i think its somthing simple (althou you may not think so lol)
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Old 10-22-2011, 01:50 PM   #3 (permalink)
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well i got it sorted in the end with a bit of a work around.
firstly i ran new earths to each light connector, lights got power for main loom but clean grounds ran in. didnt work still the same

so i connected the earths back into the bike wiring loom and ran a clean power feed from the battery to each light connector, this works
so now have

BATTERY - IN LINE FUSE - SWITCH - FEED TO EACH LIGHT LOOM x 3

ground done through bike loom, its all fine



this pic shows the break in the feed, clean feed but earth still done via loom


switch ready to be fitted into dash


dont know if this tells us anything about the fault but the lights are working
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Old 10-23-2011, 04:26 PM   #4 (permalink)
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finished the bike today. fitted new light switch to dash, all works fine, rebuilt rest of bike, looking tidy, very happy with results will try and get out on it soon and get some pics


some pics of finished bike, before and after










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Old 10-23-2011, 06:53 PM   #5 (permalink)
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Dam... looks brand new...nice job!
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Old 10-23-2011, 08:31 PM   #6 (permalink)
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WOW! that atv was beat to crap when you got it. Man what a diffrance, you did a excellent restoration!
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Old 10-23-2011, 11:57 PM   #7 (permalink)
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Sounded like you had a short somewhere. Probably a bad (+) somewhere between your switch and the bulbs/ dash backlight. Its really easy on a bike that was in its condition becuase a (+) just has to touch any part of the frame and it shorts. Its kind of like Christmas tree lights, you unplug one and nothing on that circuit will work... Of course you did the alternative, but you did a stellar job reconditioning it!
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Old 10-24-2011, 02:41 PM   #8 (permalink)
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Quote:
Originally Posted by slippers View Post
finished the bike today. fitted new light switch to dash, all works fine, rebuilt rest of bike, looking tidy, very happy with results will try and get out on it soon and get some pics


some pics of finished bike, before and after










Did you buy new plastics? Or just fix the old ones (If you fixed the old ones i'd like to know what you did!
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Stock
3,000LBS promark xt

Polaris The way out... behind a Honda Best on Earth
2000 Honda Rancher 4x4 ES (Dad's)
AMS Swamp Fox Tires
3,000lbs Promark winch
2000 Honda 90 (Brother's)
stock
Sold
1997 Honda Recon S
1998 Honda Foreman ES 450 6,100mi
2007 Honda Foreman S 4,005mi

Youtube http://www.youtube.com/burnshpfan
Flickr http://www.flickr.com/photos/68436721@N02/
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Old 10-25-2011, 01:36 AM   #9 (permalink)
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I bet he bought new. But I could be wrong
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Old 10-25-2011, 09:00 AM   #10 (permalink)
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Nope he painted them!
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