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f6power
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« on: December 02, 2012, 03:28:15 PM » |
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Went for a ride today,which might be the last ride of the season (Chicago area) and bike run rough from the beginning. It felt like my Harley - shaking,making a lot of noise and no acceleration... Went back home,checked the exhaust,not one but two cylinders not firing, #3 and #4.Pulled the spark plugs-no spark on either one. Since they both run off one ignition coil do you guys think it might be the coil or maybe just the ground?
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ryord
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« Reply #1 on: December 02, 2012, 04:19:05 PM » |
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I had a similar problem, it was a bad plug wire. If one side does not work neither will work.
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Oklahoma_Valk
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« Reply #2 on: December 02, 2012, 04:50:18 PM » |
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I'd do new plugs. New wire. Then check that coil out. May have some corrosion inside that coil.
If both went bad at once, its likely that the plugs and wire are not the problem though.
Let us know what u find out!!
Okie
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Let those who ride decide.  |
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f6power
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« Reply #3 on: December 02, 2012, 05:25:00 PM » |
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The plugs only have 15,000 on them and the wires about 5,000 , but I'll check all the connections and the ground on the coil, if that won't work I might have to consider new coil...
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Oklahoma_Valk
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« Reply #4 on: December 02, 2012, 05:40:41 PM » |
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You should be able to test the OHM resistance of the plug wire and determine if parts of the coil are bad. I am no expert in this area, but the Honda Manual or another manual may have Ohm values for this. Hopefully someone who knows better will pipe up!!
Okie
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Let those who ride decide. |
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valky1500
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« Reply #5 on: December 02, 2012, 10:03:05 PM » |
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There is a 5000 ohm resistor incorporated into each spark plug terminal...mainly for electronic noise suppression. It can be removed by screwing out the "connector" inside the plug terminal. The resistor has a spring behind it (easy to lose!). If the caps generate more than 5,000 ohms each when isolated and tested for resistance, you can try disassembling and cleaning the internal resistor. Sometimes, simply tightening the screw "connector" retaining the resistor with a screw driver and a pair of pliers will alleviate the problem. As previously stated, #3 and #4 wires are the same coil and all it takes is the added resistance in one wire to knock out the function of the coil. Simply cleaning the connections at the resistors can restore this balance to allow the coil to operate as designed once again.  |
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'98 Standard '01 IS Yes I pull a trailer I have taken notice to those who use that word (Precautionary) and abide by it are not only very happy in life... but they also live long and prosper.  |
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JaysGone
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« Reply #6 on: December 03, 2012, 04:29:57 AM » |
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Went for a ride today,which might be the last ride of the season (Chicago area) and bike run rough from the beginning. It felt like my Harley - shaking,making a lot of noise and no acceleration... Went back home,checked the exhaust,not one but two cylinders not firing, #3 and #4.Pulled the spark plugs-no spark on either one. Since they both run off one ignition coil do you guys think it might be the coil or maybe just the ground?
if you believe its the coils. I have a pair or 1 coil you can have for shipping costs only. Just PM me. |
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 1999 Valk - SOLD 2005 Yamaha RoadStar 2010 GoldWing with Motor Trike Kit |
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da prez
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« Reply #7 on: December 03, 2012, 01:07:01 PM » |
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Hey F6 , I live in the Cary /Crystal lake area and am in your area quite frequently. P M if you need help.
da prez
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Black Dog
Member
Posts: 2606
VRCC # 7111
Merton Wisconsin 53029
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« Reply #8 on: December 03, 2012, 01:14:07 PM » |
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I had a similar issue, and after going through the trouble of plugs, fuel issues, even replacing the serving coil, mine turned out to be a bad ICM... If you have another owner near by, maybe you could swap out the ICM, and see if it corrects your problem.
Big Mike, from Valkyrie Bling ended up finding me an Interstate ICM, for less than half the price of a new one. Pinwall is another option, if you determine it is the ICM.
Good luck.
Black Dog
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Just when the highway straightened out for a mile And I was thinkin' I'd just cruise for a while A fork in the road brought a new episode Don't you know... Conform, go crazy, or ride a motorcycle...  |
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valky1500
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« Reply #9 on: December 03, 2012, 06:50:55 PM » |
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Went for a ride today,which might be the last ride of the season (Chicago area) and bike run rough from the beginning. It felt like my Harley - shaking,making a lot of noise and no acceleration... Went back home,checked the exhaust,not one but two cylinders not firing, #3 and #4.Pulled the spark plugs-no spark on either one. Since they both run off one ignition coil do you guys think it might be the coil or maybe just the ground?
if you believe its the coils. I have a pair or 1 coil you can have for shipping costs only. Just PM me. There are 2 ways to test coils: #1- with the ignition off, disconnect the plug wires at the plugs and check the resistance between the caps. It should be somewhere around 25K ohms (15,000 + 2 (5k)resistors). If it is higher then the next place to look is at the resistors themselves. Cleaning or replacing them would do the trick. #2- swap the coil with a known good coil. Easy enough. You have 3. Cool If it's not the coil or the wires the next place to check is at the ICM and swapping it with a known good module will tell soon enough. |
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'98 Standard '01 IS Yes I pull a trailer I have taken notice to those who use that word (Precautionary) and abide by it are not only very happy in life... but they also live long and prosper. |
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98valk
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« Reply #10 on: December 05, 2012, 07:38:45 PM » |
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coil primary 2.2 - 3.0 ohms @ 68F this I know for sure
coil secondary 14.7-17k ohms this is from memory
the above is from the goldwing GL1500 manual which uses the same coils as a few other honda bikes do including the ST1100.
a hotter coil are the ones from the CBR1100XX blackbird.
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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valky1500
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« Reply #11 on: December 05, 2012, 09:59:45 PM » |
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You can skip buying new coils because the fact that it starts up and runs points elsewhere. These are dual coils and when the ICM senses one to go bad (shorted out) it will not allow the engine to start up let alone run. |
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'98 Standard '01 IS Yes I pull a trailer I have taken notice to those who use that word (Precautionary) and abide by it are not only very happy in life... but they also live long and prosper. |
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f6power
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« Reply #12 on: December 06, 2012, 08:50:07 AM » |
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You can skip buying new coils because the fact that it starts up and runs points elsewhere. These are dual coils and when the ICM senses one to go bad (shorted out) it will not allow the engine to start up let alone run. That's good to know because they don't come cheap  Too bad I have to wait for the weekend to have time to start checking things out... Thanks everyone ! |
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Garland
Member
Posts: 451
#618
Hendersonville NC
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« Reply #13 on: December 06, 2012, 05:18:27 PM » |
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My bike did that once. One of coil wires came loose somehow. Check those connections before you start spending money.
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salty1
Member
Posts: 2359
"Flyka"
Spokane, WA or Tucson, AZ
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« Reply #14 on: December 07, 2012, 12:01:38 PM » |
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My bike did that once. One of coil wires came loose somehow. Check those connections before you start spending money.
+1 |
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My rides: 1998 GL1500C, 2000 GL 1500CF,2006 GL 1800 3A   |
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f6power
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« Reply #15 on: March 23, 2013, 11:44:10 AM » |
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I think this case needs closure. It's finally getting warmer here in chicagoland and I decided it's time to fix my bike.After reading all your suggestions I wanted to check the connections first. I unscrewed and pulled the resistor from the spark plug cap on a cylinder that wasn't firing and sure enough it was so rusted on top I can't imagine anything go thru. Two minutes later with rust sanded off everything went back in and the bike started right away even after sitting for over four months. Thank you all for your help. I think I'm going go ride some now |
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Oklahoma_Valk
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« Reply #16 on: March 23, 2013, 12:44:15 PM » |
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Thanks for reporting back. Glad you got her going.
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Let those who ride decide. |
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