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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Buzzing Coil? /cgi-bin/YaBB.pl?num=1304367295 Message started by sillydilly on 05/02/11 at 13:14:55 |
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Title: Buzzing Coil? Post by sillydilly on 05/02/11 at 13:14:55 Ok, Im getting back to work on my bike, and I figured this might be one of the last bumps in the road. My coil buzzes when I have they key on, and kill switch set to "RUN". Ive done a quick checkthrough on the wiring and I cant find anything that would indicate why this would constantly loudly buzz while the keys on? Has anyone had this problem? is my coil shot? |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/03/11 at 03:50:00 Never heard of such a thing.. |
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Title: Re: Buzzing Coil? Post by Arnold on 05/03/11 at 08:09:47 Does the bike start? |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/03/11 at 09:33:29 No, the Bike dont start, but the fluorescent lites in the shop come on.. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/03/11 at 10:15:50 yeah the bike starts. it just runs a little sloppy and backfires a lot. When I put the plug wire on the block, it constantly archs. probably 500 times per second |
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Title: Re: Buzzing Coil? Post by Arnold on 05/03/11 at 10:25:50 Scary, does the Clymer show how to test CDI? Could there be a short in it? |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/03/11 at 10:31:07 Im not an ignition pro, not in the least, but Id want to isolate the cil electrically & test with an ohm meter & see if the coil is goofed up or if its the signal the coil is getting. If the coil tests okay, then Id have to look at the ignition electronics,, |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/03/11 at 10:39:20 Arnold, I havent checked that. I was told (by verslagen himself!) that one side of the coils hot, ones cold? this is caused by a short somewhere? does this make sense? I dont really want to do "OHM tests" since electronics are my weakness. |
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Title: Re: Buzzing Coil? Post by Arnold on 05/03/11 at 10:49:06 Testing with voltmeter should be easy, set to impedance touch the terminals and see what resistance you get, if you get infinity you have an open circuit, no good. Also touch each coil terminal one at a time to the battery negative, it should read zero, if you get any other number there's a short. I believe that would determine if the coil is doing its job but we have some electric wiz on this board. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/03/11 at 10:55:12 http://www.youtube.com/watch?v=P9KQIUsBoes |
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Title: Re: Buzzing Coil? Post by verslagen1 on 05/03/11 at 11:24:11 http://i757.photobucket.com/albums/xx211/babyhog/S40/1995WiringDiagpg2.jpg As you can see, one coil lead goes to the run/kill switch and the other to the CDI (magic sh!t box). The CDI opens (or vise versa, never can remember which, dam electrons) the coil to light a fire in the hole. So for you to have a continuous spark there has to be a defective component somewhere. Hopefully it's in the wire leading the CDI. Cause otherwise it's the CDI, and that's a lot of bucks. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/03/11 at 11:31:45 http://img843.imageshack.us/img843/3479/sany2461.jpg http://img204.imageshack.us/img204/6610/sany2459g.jpg just some close-ups looking for damage or anything |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/03/11 at 11:41:06 Look at the tops of the capacitors ( the blue tubes with the gray stripes & arrow, standing up), if one is domed, its done.Notice theyre scored lightly. Thats so when they Do overpressure, they pop before they pressure up like a mini pipe bomb. I cant see anything that looks messed up, |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/03/11 at 11:50:49 guess im strapping down tonight and checking the wiring harness. |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/03/11 at 12:33:45 Jut get a cheap ohm meter( Youre gonna need one, whether you want to use one or not) & check the coil out. Post the readings. The coil cant just tell the plug to fire unless its being sent a signal to do that, but, checking the coil is so easy that I wouldnt think of starting anywhere else. . You just turn the key on, dont even hit the start button & the coil starts firing the plug? & a test lite,, gotta have one O those,, |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/03/11 at 12:40:57 716E686F72754474447C6E62291B0 wrote:
Correct. I think I have a voltmeter somewhere. How exactly do I perform this test? |
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Title: Re: Buzzing Coil? Post by thumperclone on 05/03/11 at 13:01:06 ignition coil primary 1-7 ohms between o/w & b/y secondary 10-15 K ohms between plug wire and b/y late last year i posted the ohm readings to check the ignitor unit... found it; rubber side down 8/02/10 did a search "ignitor unit" |
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Title: Re: Buzzing Coil? Post by arteacher on 05/03/11 at 13:25:20 Gotta be the ignitor. I can't see how a defective coil would do that. They either work, or they are weak if there's a short in the coil, or they don't work if there's an open circuit. Somehow that coil is getting high frequency signals and that can only be the ignitor. I thought about the pickup coil as well, but I can't see how it could malfunction in that manner. Clymers says that the stealer has a special tester for the ignitor. The service manual says essentially the same thing, but gives the specs if you have the "Suzuki pocket tester", and warns that the values won't be correct unless you use the Suzuki tester. Take it to the stealer to see if it's defective. Ask them what's wrong with it if they know. Then take it to an electronics repair shop. If they can get the chip, they can fix it a h*ll of a lot cheaper than the $500 that the stealer will want for a new one. Every thing in the ignitor is a shelf part except the chip, and that can be ordered. |
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Title: Re: Buzzing Coil? Post by arteacher on 05/03/11 at 13:59:27 I just had another look and that cap right beside the big transistor looks a little cooked on top. |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/03/11 at 15:09:11 The stuff on top is definitely darker.. Dang art teachers have good eyes, too.. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/03/11 at 19:53:36 Never used one of these before. Where do I plug the wires in, what setting, and which wires do I touch on the bike?? http://img88.imageshack.us/img88/1189/sany2477.jpg |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/03/11 at 20:15:03 Black wire, bottom right corner, red wire, one hole up, turn dial to the Ohms section, lower left of the dial, surrounded by a thin green line. You decide what range by what youre gonna read. I you expect to see 10, ooo ohms, you need to set it on the 20 K, but it wont hurt a thing if you go to 2000k (2,000 K = 2,000,000 ohm = 2 meg ohms) . Just play with it. as long as here is No POwer to what you are measuring, ya cant really mess up too bad, just steer clear of messing with reading on items still installed in circuits. That can confuse the daylites out of ya. Unless the item to be tested is out of the circuit on at least on end, you cant know youre not seeing continuity in a parallel section of the circuit, well,, unless you have a schematic of the circuit youre troubleshooting.. OHH, & measuring Ohms really doesnt require getting the polarity with th wires "right".. but, itll make someone who hasnt done this a lot more comfortable.. .. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/04/11 at 10:05:23 2B343235282F1E2E1E26343873410 wrote:
It already confused the daylights out of me! What do you mean no power to what Im measuring? |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/04/11 at 10:20:31 Measuring the resistance in a circuit that has voltage applied to it just dont work out.. Unhook the power to whatever you are wanting to check with an ohm meter. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/04/11 at 10:32:01 so I remove the coil completely from the bike, and touch both wires to its wires? and that should give me an OHM reading? |
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Title: Re: Buzzing Coil? Post by arteacher on 05/04/11 at 13:50:50 You don't have to remove the coil, just disconnect the wires REMEMBERING WHERE THEY GO! Then connect one side to ground (the mounting bolt) then the other side to ground and write down each reading. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/04/11 at 15:13:49 hope this makes more sense to you than it does me. http://img193.imageshack.us/img193/7615/sany2486.jpg |
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Title: Re: Buzzing Coil? Post by verslagen1 on 05/04/11 at 16:28:52 should be 1 to 7 ohms, try it on the 200 scale. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/04/11 at 21:39:17 Ill do a new reading tomorrow. If it is the CDI box, whats the best way of doing that? Odds of fixing it are probably slim, so Ill need a new (used?) one... I see them on eBay for $140ish, and I know that some arent compatable with each other, so which ones do I look for? |
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Title: Re: Buzzing Coil? Post by verslagen1 on 05/05/11 at 07:25:31 Pre '90's bikes have a different connector the post '90 And the timing's different. So try to get one in your time period. There were a few recently that started at $50 |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/05/11 at 10:53:05 a couple newer ones going for cheap up there, but the 80s ones are about 150ish |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/05/11 at 10:56:05 http://store03.prostores.com/servlet/ricksmotorcycle/the-2928/86-dsh-95-Suzuki-LS650-Savage/Detail how come this one says 86-95? |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/05/11 at 18:40:28 take note of the polarity swap. http://img600.imageshack.us/img600/9995/sany2494.jpg http://img263.imageshack.us/img263/6701/sany2493.jpg |
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Title: Re: Buzzing Coil? Post by verslagen1 on 05/05/11 at 19:44:08 I'd pick up an extra coil and swap it out. http://cgi.ebay.com/ebaymotors/OEM-91-04-Suzuki-LS650-LS-650-Savage-IC-Ignition-Coil-_W0QQcmdZViewItemQQhashZitem4aaad2b963QQitemZ320693516643QQptZMotorcyclesQ5fPartsQ5fAccessories |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/05/11 at 21:31:50 so you think I should gamble the $25 and try a new coil before I try a CDI box? couldnt I hook up a 3rd party coil to the wires and see if it buzzes as well? just to verify that it isnt my CDI box that makin her hum? |
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Title: Re: Buzzing Coil? Post by verslagen1 on 05/05/11 at 21:39:11 coil cheap CDI expensive 3rd party coil may damage it. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/05/11 at 22:32:37 and this 91+ coil is compatible with my 1986? |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/06/11 at 12:01:06 I think Ill buy a coil and get it priority shipped to me so I can test it. if not, its off to a CDI box. what year are all these electricals identical? |
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Title: Re: Buzzing Coil? Post by babyhog on 05/06/11 at 19:20:52 Tested the one I have for you and got 4.5 both ways. Let me know if you want it. |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/07/11 at 08:49:06 73696C6C7964696C6C79000 wrote:
Good thinki9ng.. Next time youve got a meter connected to something "Fiddly" & you want to swap leads, instead of messing with the end on what youre measuring, you can swap in the meter. That way you keep the connections at the item being tested unmolested& that way you dont unintentionally alter the connections & change the reading inadvertently. |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/07/11 at 10:34:11 746B6D6A7770417141796B672C1E0 wrote:
Good thinki9ng.. Next time youve got a meter connected to something "Fiddly" & you want to swap leads, instead of messing with the end on what youre measuring, you can swap in the meter. That way you keep the connections at the item being tested unmolested& that way you dont unintentionally alter the connections & change the reading inadvertently. [/quote] makes sense. 767574797B61180 wrote:
I most certainly do, assuming thats a good reading. PM sent! 8-) |
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Title: Re: Buzzing Coil? Post by babyhog on 05/07/11 at 15:50:22 Parts will be on their way first thing Monday morning! :) |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/29/11 at 23:51:07 Bills disease really kicked my tushy on this one. Who wants to guess where I went wrong? ::) ::) ::) |
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Title: Re: Buzzing Coil? Post by verslagen1 on 05/30/11 at 07:21:11 you forgot the klotz or did seafoam fix it? |
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Title: Re: Buzzing Coil? Post by justin_o_guy2 on 05/30/11 at 22:42:55 33292C2C3924292C2C39400 wrote:
Spill it! |
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Title: Re: Buzzing Coil? Post by sillydilly on 05/31/11 at 02:03:37 bike doesnt like to spark properly without a battery, and especially being solely run off my battery charger |
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