Power loss caused by bad pick up coil?
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Power loss caused by bad pick up coil?
15 Mar 2014 22:04 - 15 Mar 2014 22:05
Hi guys! I own a 1980 ltd 550, I been havin problems starting it wen cold, I got used to it but a few days ago I have been experiencing a loss of power on my bike, prove everything ,coils, spark plugs, ic, spark plug wires and so on. The only thing I found was a bad pick up coil wire, it was almost riped off so I weld the wire back but the problem stills, but I think the problem root is that pice (pick up coil), I'm not an expert that's why I'm asking for your opinion , so what do you guys think? Can those problems be caused for bad pick up coils or do I have to look for another possible causes?
Any help is very appreciated
Any help is very appreciated

Last edit: 15 Mar 2014 22:05 by 300.
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- Patton
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Re: Power loss caused by bad pick up coil?
16 Mar 2014 06:00
Perhaps a "choke flap" issue.
This link is to a very informative article furnished courtesy of KZr member, loudhvx.
home.comcast.net/~loudgpz/GPZweb/TK22mai...chokePlateFlaps.html
Good Fortune!
This link is to a very informative article furnished courtesy of KZr member, loudhvx.
home.comcast.net/~loudgpz/GPZweb/TK22mai...chokePlateFlaps.html
Good Fortune!

1973 Z1
KZ900 LTD
KZ900 LTD
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Re: Power loss caused by bad pick up coil?
16 Mar 2014 10:08
Thanks Patton , I found the solution for the startin on cold problem in the article, but the power loss stills

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- MFolks
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Re: Power loss caused by bad pick up coil?
16 Mar 2014 10:22
Ohm Checking Pickup(Pulsing) Coils
The pickup coils on the Kawasaki’s with the factory supplied electronic ignition can sometimes fail or become intermittent due to heat and vibration.
1.Trace back from where the pick up coils are mounted,(under a right side CD sized cover) locate and disconnect a small 4 pin connector. Using a multi-meter set on OHMS and range of X 100 check between the BLUE and BLACK wires(#1 and #4 sparkplug wires) for between 360- 540 OHMS.
2.For #2 and #3 sparkplugs the wire colors will be YELLOW and RED, again 360-540 OHMS.
3.If the pickup coils are suspect of failing due to heat, they can be stressed using a hair dryer without the need of the engine running.
4.A replacement set of pickup coils might be obtained from a dealer who serviced the police Kawasaki’s.
5. If replacement pickup coils are not available, your next choice would be to order a Dyna “S” electronic ignition system from www.z1enterprises.com It replaces the IC igniter with a smaller module located where the mechanical ignition advancer was mounted.
6.Checking with Kawasaki.com website has determined that the Pick up(pulsing) coils are available . The pulsing coil # is 59026-1133 and replaces the older # 1002, 1012 which were used from the MKII motors until the 2005 P24.
I'm not sure if the wiring colors are the same for your bike, but get a multimeter, and check the resistance of the pick up coils, hot and cold.
If you are not sure about using a multimeter, watch this video:
The best multimeter tutorial
The pickup coils on the Kawasaki’s with the factory supplied electronic ignition can sometimes fail or become intermittent due to heat and vibration.
1.Trace back from where the pick up coils are mounted,(under a right side CD sized cover) locate and disconnect a small 4 pin connector. Using a multi-meter set on OHMS and range of X 100 check between the BLUE and BLACK wires(#1 and #4 sparkplug wires) for between 360- 540 OHMS.
2.For #2 and #3 sparkplugs the wire colors will be YELLOW and RED, again 360-540 OHMS.
3.If the pickup coils are suspect of failing due to heat, they can be stressed using a hair dryer without the need of the engine running.
4.A replacement set of pickup coils might be obtained from a dealer who serviced the police Kawasaki’s.
5. If replacement pickup coils are not available, your next choice would be to order a Dyna “S” electronic ignition system from www.z1enterprises.com It replaces the IC igniter with a smaller module located where the mechanical ignition advancer was mounted.
6.Checking with Kawasaki.com website has determined that the Pick up(pulsing) coils are available . The pulsing coil # is 59026-1133 and replaces the older # 1002, 1012 which were used from the MKII motors until the 2005 P24.
I'm not sure if the wiring colors are the same for your bike, but get a multimeter, and check the resistance of the pick up coils, hot and cold.
If you are not sure about using a multimeter, watch this video:
The best multimeter tutorial
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
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Re: Power loss caused by bad pick up coil?
16 Mar 2014 10:26
Trying, yet again to post the multimeter video:
The best multimeter tutorial
The best multimeter tutorial
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
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Re: Power loss caused by bad pick up coil?
16 Mar 2014 10:29
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
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Re: Power loss caused by bad pick up coil?
16 Mar 2014 14:09
Thanks for the info MFolks I'll try that
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Re: Power loss caused by bad pick up coil?
17 Mar 2014 14:31
So I already test the pick up coils with the multimeter an they sem to be ok. A friend of mine told me that it may be a clutch problem, so I adjusts the clutch a bit and the bike runs better now but not as good as it used to do, any tips, manual or tutorial for pulling out the clutch an checking it? An what do I have to look for once a I pull the clutch out?
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Re: Power loss caused by bad pick up coil?
17 Mar 2014 14:52
You mention "loss of power", but I for one do not know what you mean by that. Are you saying the engine won't rev past a certain rpm, or do you mean the engine revs ok but the bike doesn't move forward beyond a certain speed or is slow to accelerate even though the engine revs ok? Adjusting the clutch should have no affect whatsoever on the amount of power the engine produces. However, if the clutch is slipping, it will have an affect on transferring the engine's power to the rear wheel. Please give more detail about the symptoms of the problem. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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Re: Power loss caused by bad pick up coil?
17 Mar 2014 15:23 - 17 Mar 2014 15:23
If not already done, would assure that the automatic timing advancer is functioning properly, and isn't stuck in the closed idle position.
Good Fortune!
Good Fortune!

1973 Z1
KZ900 LTD
KZ900 LTD
Last edit: 17 Mar 2014 15:23 by Patton.
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Re: Power loss caused by bad pick up coil?
17 Mar 2014 19:54
Thanks for the interest Ed, what I'm trying to explain is that the bike lose the power it used to have a few days ago, it is a 550 but now it runs like a 250 or less, and it happened from one moment to another, it wasn't gradually, it revs ok it even feels good wen runnig but it does tht at half speed it used to reach.
Another thing I noticed earlier today wen I was testing the clutch is that I can't pass directly to second gear from neutral, I have to run it a bit on first gear and then shift to second gear.
Any idea ?
Another thing I noticed earlier today wen I was testing the clutch is that I can't pass directly to second gear from neutral, I have to run it a bit on first gear and then shift to second gear.
Any idea ?
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Re: Power loss caused by bad pick up coil?
17 Mar 2014 20:00 - 17 Mar 2014 20:02
Thanks for the tip Patton, Already checked, it seems to be ok , is not stuck
Last edit: 17 Mar 2014 20:02 by 300.
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