|
SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Blowing/popping fuses /cgi-bin/YaBB.pl?num=1299169323 Message started by GrateFuLDad on 03/03/11 at 08:22:03 |
|
Title: Blowing/popping fuses Post by GrateFuLDad on 03/03/11 at 08:22:03 2003 savage... i have been riding my bike and everything has been fine for along time now... i went to crank it up yesterday and nothing? no lights or nothing.. checked battery and its fully charged.. checked fuses... and top one is blown... i have looked at all wires etc and cannot find anything pinched or cut/touching anywhere? it has blown my mind... i spent all day yesterday and all this morning going over everything... Nothing.. i have now blown about 10 fuses... any help? anyone ever run across this... thanks in advance.. |
|
Title: Re: Blowing/popping fuses Post by verslagen1 on 03/03/11 at 09:06:48 Most likely you have a short under the tank. remove the headlight from the equation and drop to 10 amp fuse. I'd disconnect systems until the problem goes away. If it doesn't then it's the wiring harnass itself, which it probably is anyway. |
|
Title: Re: Blowing/popping fuses Post by Serowbot on 03/03/11 at 10:02:25 Do you have any aftermarket electrics?... if so, check those... ...even a turn signal short can be the culprit here... |
|
Title: Re: Blowing/popping fuses Post by justin_o_guy2 on 03/03/11 at 12:36:27 Get an ohm meter & a wiring diagram. |
|
Title: Re: Blowing/popping fuses Post by Paladin. on 03/03/11 at 16:30:22 Take one of those blown fuses and connect it with a light bulb. When you find the short you will see the light! |
|
Title: Re: Blowing/popping fuses Post by Serowbot on 03/03/11 at 17:16:30 0F3E333E3B36315F0 wrote:
Paladin... I don't understand how that works... Could you explain it to me? Why doesn't the bulb just make a complete, un-fused circuit and cause a short fire or burn out?... ... and I do know I've got something wrong here,.. 'cause I know, if you just connect a bulb to positive and negative on a battery, it will light up. Why don't it blow, like a fuse?... HELP!... I'm stuck in a logic circle!... :-?... |
|
Title: Re: Blowing/popping fuses Post by justin_o_guy2 on 03/03/11 at 17:34:24 5046514C54414C57230 wrote:
Paladin... I don't understand how that works... Could you explain it to me? Why doesn't the bulb just make a complete, un-fused circuit and cause a short fire or burn out?... ... and I do know I've got something wrong here,.. 'cause I know, if you just connect a bulb to positive and negative on a battery, it will light up. Why don't it blow, like a fuse?... HELP!... I'm stuck in a logic circle!... :-?...[/quote] Me too,, |
|
Title: Re: Blowing/popping fuses Post by verslagen1 on 03/03/11 at 18:24:25 Simple, the light bulb will keep the current to a safe value. |
|
Title: Re: Blowing/popping fuses Post by verslagen1 on 03/03/11 at 18:51:40 here, you need one of these... http://www.harborfreight.com/20-amp-automotive-fuse-circuit-tester-67725.html |
|
Title: Re: Blowing/popping fuses Post by justin_o_guy2 on 03/03/11 at 19:12:24 Hey, Vers, my B/day is just 2 days ahead of Christmas. You can do 1/2 for the Bday & 1/2 for Christmas. Heck, man, Ill pay the darnged freight,, |
|
Title: Re: Blowing/popping fuses Post by verslagen1 on 03/03/11 at 19:53:34 I just gave you the full link, do you want me to erase it and wait for xmas? |
|
Title: Re: Blowing/popping fuses Post by Serowbot on 03/03/11 at 22:16:24 2F3C2B2A35383E3C3768590 wrote:
Whoosh!... blew right over my head... So, but why will the light go on when you find the short,.. and not be on otherwise?... if the short isn't happening, isn't the circuit normal?,... positive, to fuse/bulb, to ground, and bingo... light is on!... When the short is contacted,...positive goes straight to ground and fire ensues, wires burn, bad bad smells, and no more light... ... or,... if the bulb keeps the current at a safe value, preventing this,... why don't we use bulbs instead of fuses, and never have this problem in the first place... I'm not kidding... I really don't get it. I'm so lost... I almost want to go create a short to try it... ...'cept I think I'd burn something up... ...and I've already done that trick...:-?... |
|
Title: Re: Blowing/popping fuses Post by verslagen1 on 03/03/11 at 23:06:11 2630273A22373A21550 wrote:
Ok, so you plug in a 12v bulb into your fuse box, it lights up. that bulb is made to handle 12v and the highest rated bulb on your bike is about 33 watts. p=iv ohm's law. 33=i12, i=33/12 about 3 amps. When the light is burning bright, you gotta short, when it's dim, normal. to be continued Quote:
Why is the bulb dim? Ohm's law... v=ir, 12=i(resistance of the bulb plus whatever else is on the same line), from above 12=i(4+?) Lets say it's a line to the lights in the speedo, so 12=i(4+8) assuming the wattage of the indicator lights is twice the resistance. i= 12/12, i=1 amp, the light will be half as bright. Quote:
You remember that anemic magic sh!t box? darn thing shuts down at 10v. That light bulb fuse will steal voltage from the CDI box you'll have a dead savage. |
|
Title: Re: Blowing/popping fuses Post by Serowbot on 03/03/11 at 23:31:31 I think I got a little bit out of that,... gonna' have to let it soak before I'm sure... Thanks Versy... |
|
Title: Re: Blowing/popping fuses Post by GrateFuLDad on 03/04/11 at 07:14:10 LOL thanks for the info ... i was finally able to track it down.... it was in the ignition wires... some how the grey wire had melted and was bare ... looked as if maybe the seat had rubbed or pinched the wire into another... problem solved... ;) |
|
Title: Re: Blowing/popping fuses Post by Serowbot on 03/04/11 at 07:43:03 ;)... great!... ...and no fire like mine did... |
|
Title: Re: Blowing/popping fuses Post by justin_o_guy2 on 03/04/11 at 19:01:09 7E6D7A7B64696F6D6639080 wrote:
Well, NOOO! Duhh, you can send it NOW & Ill treasure it always, Starting on Christmas,, dang, man, dont you know nuttin? |
|
Title: Re: Blowing/popping fuses Post by justin_o_guy2 on 03/04/11 at 19:26:02 455641405F5254565D02330 wrote:
Ok, so you plug in a 12v bulb into your fuse box, it lights up. that bulb is made to handle 12v and the highest rated bulb on your bike is about 33 watts. p=iv ohm's law. 33=i12, i=33/12 about 3 amps. When the light is burning bright, you gotta short, when it's dim, normal. to be continued Quote:
Why is the bulb dim? Ohm's law... v=ir, 12=i(resistance of the bulb plus whatever else is on the same line), from above 12=i(4+?) Lets say it's a line to the lights in the speedo, so 12=i(4+8) assuming the wattage of the indicator lights is twice the resistance. i= 12/12, i=1 amp, the light will be half as bright. Quote:
You remember that anemic magic sh!t box? darn thing shuts down at 10v. That light bulb fuse will steal voltage from the CDI box you'll have a dead savage.[/quote] First, thank you for taking the time to open this bukkit O worms. 33 watts. p=iv ohm's law. 33=i12, i=33/12 about 3 amps I spent 9 months in Biloxi with people trying to teach me electronics & that has got to be the best danged " Get it thru to them" approach I ever saw. I ont hav Ohms law ingrained in my mind like that. All I know is E=IR, the various algebraic convolutions escape me. The Power aspect of Ohms law always destroyed me. So thanks, I ALMOST appreciate it enough to let ya off the hook for the Majik Sh!tbox for Christmas. Now, it seems to me that the fuse has no current flow thru it,, OHHHH, Waaait a Minnit! Th problem is, the fuse Blows.. why? OVERcurrent, Why overcurrent? A short,, Oookay, now we ginin here.. So, if the light is bright, its due to greater current flow in the circuit than is "Normal". Okay, so, I can prove I have a short.. HownaHEKK am I gonna Find that crummy little thing? So, I Gurgled "How to find a short" SHORT CIRCUITS NOTE: Never use a self-powered test light to perform checks for opens or shorts when power is applied to the circuit under test. The test light can be damaged by outside power. 1. Isolate the circuit from power and ground. 2. Connect the self-powered test light or ohmmeter ground clip to a good ground and probe any easy-to-reach point in the circuit. 3. If the light comes on or there is continuity, there is a short somewhere in the circuit. 4. To isolate the short, probe a test point at either end of the isolated circuit (the light should be on or the meter should indicate continuity). 5. Leave the test light probe engaged and sequentially open connectors or switches, remove parts, etc. until the light goes out or continuity is broken. 6. When the light goes out, the short is between the last two circuit components which were opened. Okay, Im pretty well done, hafta regroup,, Vers, thankx |
|
Title: Re: Blowing/popping fuses Post by verslagen1 on 03/04/11 at 19:40:41 The thing I hate about them self powered test lamps is the might tell you where the short is but if all the wires are connected together with one big short, ain't gonna do you much good. When shorts are big enough to blow fuses, the insulation on the wires will be melted. feel for that, a hot wire will feel like a snake. |
|
Title: Re: Blowing/popping fuses Post by justin_o_guy2 on 03/04/11 at 22:00:10 The thing I hate about them self powered test lamps is the might tell you where the short is but if all the wires are connected together with one big short, ain't gonna do you much good. Hmmm,, that could be a hassle,, well POOT!,, Okay... I dont want it any more,,, Crappola,, & I was SO excited about the idea of having a Christmas present this year,,, ohhh, well, maybe one day,,, |
|
Title: Re: Blowing/popping fuses Post by Digger on 07/29/11 at 21:28:53 66575A57525F58360 wrote:
Like this: I made a tool to assist me in doing wiggle checks on suspect circuits. I find that using this tool is easier and cheaper than blowing out lots of fuses as you search for shorts. It is a license plate light fixture and wiring harness that I removed from an old pickup truck eighteen years ago when I was putting a rear bumper on it: http://i235.photobucket.com/albums/ee201/Digger109/Garage/CircuitTesterE.jpg I cut off the OEM connector and crimped on some spade connectors to the ends of the two wires: http://i235.photobucket.com/albums/ee201/Digger109/Garage/CircuitTesterLeadsE.jpg You can see where I filed down the spade connectors so that they would fit into the holder for the fuse. I pull the fuse on the suspect circuit, plug my tester leads into the fuse holder, turn on the ignition switch, and wiggle away. If I find a short to ground, the light gets really bright. If you are testing the headlight/taillight circuit, you may want to disconnect those bulbs first, since, if said bulbs are drawing juice, the test lamp will be burning brightly and thus making it harder to detect shorts. IHTH! |
|
SuzukiSavage.com » Powered by YaBB 2.2! YaBB © 2000-2007. All Rights Reserved. |